CN102981736A - Screen unlocking method and screen unlocking terminal - Google Patents
Screen unlocking method and screen unlocking terminal Download PDFInfo
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- CN102981736A CN102981736A CN2012104207083A CN201210420708A CN102981736A CN 102981736 A CN102981736 A CN 102981736A CN 2012104207083 A CN2012104207083 A CN 2012104207083A CN 201210420708 A CN201210420708 A CN 201210420708A CN 102981736 A CN102981736 A CN 102981736A
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Abstract
The invention discloses a screen unlocking method and a screen unlocking terminal, and relates to the field of electronic equipment application. The screen unlocking method and the screen unlocking terminal aim to simplify unlocking operation. The method includes that a human eye sight line is obtained in a preset coordinate system; coordinates of a to-be-tested point of the human eye sight line on a terminal screen are obtained, the to-be-tested point is an intersection point of the human eye sight line and the screen; if the coordinates of the to-be-tested point are matched with coordinates of a preset standard point, the screen is unlocked, wherein the coordinates of the preset standard point are placed in the screen coordinate system, and the screen displays a point which corresponds to the coordinates of the preset standard point. The screen unlocking method and the screen unlocking terminal are mainly used in the process of unlocking of a mobile phone screen.
Description
Technical field
The present invention relates to the electronic apparatus application field, relate in particular to a kind of method and terminal of unlocking screen.
Background technology
At present, the subscriber equipment (User Equipment is called for short terminal) that comprises mobile phone, panel computer generally uses touch-screen (abbreviation touch-screen) as device screen.Touch-screen becomes rapidly the terminal screen of main flow because its good operating experience is subject to users' favor.
Unlocking screen is that a kind of of touch-screen uses comparatively widely, and the user uses finger at the predetermined operational motion of touch-screen execution when the release terminal screen, when user's operational motion mates with default release action, and touch screen unlocking.
State in realization in the process of unlocking screen, the user needs a handgrip to hold terminal usually, and the another hand is the executable operations action on touch-screen, and the staff quantity that takies is many; Perhaps, when the user used a hand release, this hand not only needed to keep steady terminal but also need to executable operations action on touch-screen caused maloperation easily.
Summary of the invention
The embodiment of the invention provides a kind of method and terminal of unlocking screen, and it is high to solve the unlocking screen complexity, easily the problem of release maloperation.
First aspect, the embodiment of the invention provide a kind of method of unlocking screen, comprising:
In preset coordinate system, obtain people's an eye line of user;
Obtain the tested point coordinate of described people's an eye line on terminal screen, described tested point is the intersection point of described people's an eye line and described screen;
If described tested point coordinate and preset standard point coordinate coupling, the described screen of release then, wherein, described preset standard point coordinate is arranged in described screen coordinate system, and described screen presents the point corresponding with described preset standard point coordinate.
In the possible implementation of the first of described first aspect, described preset coordinate is three-dimensional coordinate system, described preset coordinate is that initial point is described screen coordinate system initial point, the X-direction that described preset coordinate is is vertical described screen orientation, the Y direction that described preset coordinate is is consistent with described screen coordinate system X-direction, the Z-direction that described preset coordinate is is consistent with described screen coordinate system Y direction, and described people's an eye line of obtaining the user specifically comprises:
Obtain human eye pupil coordinate and eyeball sphere centre coordinate;
Obtain described people's an eye line according to described human eye pupil coordinate, described eyeball sphere centre coordinate and default straight-line equation.
In the possible implementation of the first of described first aspect or described first aspect, the possible implementation of the second of described first aspect also is provided, in the possible implementation of the second of described first aspect, the described human eye pupil coordinate that obtains specifically comprises:
Obtain the oculopupillary Y of described people according to Eye Recognition, Z coordinate b, c obtains the oculopupillary X coordinate of described people a according to face recognition technology and default mapping relations table;
The described eyeball sphere centre coordinate that obtains specifically comprises:
Obtain the Y of the described eyeball centre of sphere according to Eye Recognition, Z coordinate B, C obtains the X coordinate A of the described eyeball centre of sphere according to described people oculopupillary X coordinate a and default eyeball radius;
The described tested point coordinate of described people's an eye line on screen that obtain specifically comprises:
With 0 straight-line equation as the described people's an eye line of X substitution, obtain the Y of described tested point coordinate, Z coordinate m, n.
In the implementation that the first is possible or the second is possible of described first aspect or described first aspect, the third possible implementation of described first aspect also is provided, in the third possible implementation of described first aspect, if described tested point coordinate and preset standard point coordinate coupling, the described screen of release then specifically comprises:
If described tested point coordinate m, n and described preset standard point coordinate j, k is identical, then the described screen of release; Perhaps,
If described tested point coordinate m, n fall into described preset standard point coordinate j, k is in the center of circle, the circle take preset length L as radius, then the described screen of release.
In the first possibility, the second possibility or the third possible implementation of described first aspect or described first aspect, the 4th kind of possible implementation of described first aspect also is provided, in the 4th kind of possible implementation of described first aspect, described method further comprises:
If the described tested point coordinate that obtains successively and described preset standard point coordinate coupling, the then described screen of release; Wherein said screen successively presents or presents simultaneously the point corresponding with described preset standard point coordinate.
The first of described first aspect or described first aspect may, the second may the third may or the 4th kind of possible implementation in, the 5th kind of possible implementation of described first aspect also is provided, in the 5th kind of possible implementation of described first aspect, described method further comprises:
If the tested point coordinate quantity of described people's an eye line on described screen is greater than 1, and have a tested point coordinate and described preset standard point coordinate coupling, the then described screen of release at least.
Second aspect, the embodiment of the invention also provide a kind of terminal, and described terminal comprises:
The sight line acquiring unit is used for obtaining people's an eye line of user in preset coordinate system;
The tested point acquiring unit is used for obtaining the tested point coordinate of described people's an eye line on terminal screen that described sight line acquiring unit obtains, and described tested point is the intersection point of described people's an eye line and described screen;
Storage unit is used for storage preset standard point coordinate;
The release indicating member, when the preset standard point coordinate that is used for the described tested point coordinate that obtains when described tested point acquiring unit and described cell stores mates, send the release indication to described screen, so that described coupling is carried out release according to described release indication, wherein, described preset standard point coordinate is arranged in described screen coordinate system, and described screen presents the point corresponding with described preset standard point coordinate.
In the possible implementation of the first of described second aspect, described preset coordinate is three-dimensional coordinate system, described preset coordinate is that initial point is described screen coordinate system initial point, the X-direction that described preset coordinate is is vertical described screen orientation, the Y direction that described preset coordinate is is consistent with described screen coordinate system X-direction, the Z-direction that described preset coordinate is is consistent with described screen coordinate system Y direction, and described sight line acquiring unit specifically is used for:
Obtain human eye pupil coordinate and eyeball sphere centre coordinate, obtain described people's an eye line according to the described human eye pupil coordinate that obtains, described eyeball sphere centre coordinate and default straight-line equation.
In the possible implementation of the first of described second aspect or described second aspect, the possible implementation of the second of described second aspect also is provided, in the possible implementation of the second of described second aspect, described sight line acquiring unit specifically comprises:
The human eye pupil obtains subelement, is used for obtaining the oculopupillary Y of described people according to Eye Recognition, and Z coordinate b, c obtains the oculopupillary X coordinate of described people a according to face recognition technology and default mapping relations table;
The eyeball centre of sphere obtains subelement, is used for obtaining according to Eye Recognition the Y of the described eyeball centre of sphere, Z coordinate B, and C obtains the X coordinate A of the described eyeball centre of sphere according to described people oculopupillary X coordinate a and default eyeball radius;
Described tested point acquiring unit specifically is used for the straight-line equation with 0 described people's an eye line of obtaining as the described sight line acquiring unit of X substitution, obtains the Y of described tested point coordinate, Z coordinate m, n.
In the implementation that the first is possible or the second is possible of described second aspect or described second aspect, the third possible implementation of described second aspect also is provided, in the third possible implementation of described second aspect, described release indicating member specifically is used for:
As the described tested point coordinate m that described tested point acquiring unit obtains, the described preset standard point coordinate j of n and described cell stores when k is identical, sends the release indication to described screen;
As the described tested point coordinate m that described tested point acquiring unit obtains, n falls into the described preset standard point coordinate j with described cell stores, and k is in the center of circle, the circle take preset length L as radius the time, sends the release indication to described screen.
In the first possibility, the second possibility or the third possible implementation of described second aspect or described second aspect, the 4th kind of possible implementation of described second aspect also is provided, in the 4th kind of possible implementation of described second aspect, described release indicating member is further used for:
During the described preset standard point coordinate coupling of the described tested point coordinate that obtains successively when described tested point acquiring unit and described cell stores, send the release indication to described screen; Wherein said screen successively presents or presents simultaneously the point corresponding with the described preset standard point coordinate of described cell stores.
The first of described second aspect or described second aspect may, the second may the third may or the 4th kind of possible implementation in, the 5th kind of possible implementation of described second aspect also is provided, in the 5th kind of possible implementation of described second aspect, described release indicating member is further used for:
The tested point coordinate quantity of obtaining when described tested point acquiring unit and when having the described preset standard point coordinate coupling of a tested point coordinate and described cell stores at least, sends the release indication to described screen greater than 1 the time.
The method of the unlocking screen that the embodiment of the invention provides and terminal, can be by obtaining people's an eye line of user, and the intersection point of this people's an eye line line and terminal screen is defined as point coordinate to be tested, when this point coordinate to be tested with as the preset standard point coordinate of release rule coupling the time, the release terminal screen is realized carrying out unlocking screen by people's an eye line thus.Compared with prior art, can liberate user's both hands, reduce the complexity of unlocking screen, reduce the generation of release maloperation.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the method flow diagram of unlocking screen in the embodiment of the invention;
Fig. 2 is the method flow diagram of another unlocking screen in the embodiment of the invention;
Fig. 3 is the synoptic diagram of space three-dimensional system of coordinate in the embodiment of the invention;
Fig. 4 (a) and Fig. 4 (b) are the synoptic diagram of the image information that gathers in the embodiment of the invention;
Fig. 5 is the synoptic diagram that terminal is obtained the eyeball sphere centre coordinate in the embodiment of the invention;
Fig. 6 (a) and Fig. 6 (b) are the birds-eye perspective of user's head in the embodiment of the invention;
Fig. 7 is the structural representation of terminal in the embodiment of the invention;
Fig. 8 is the structural representation of another terminal in the embodiment of the invention;
Fig. 9 is the structural representation of another terminal in the embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
The embodiment of the invention provides a kind of method of unlocking screen, and as shown in Figure 1, described method comprises the steps:
101, in preset coordinate system, obtain people's an eye line of user.
Terminal can be obtained by camera people's an eye line of user, also can obtain by modes such as infrared rays people's an eye line of user.Obtain people's an eye line as example describes take camera in the embodiment of the invention, the mode of obtaining people's an eye line is not limited in the practical application.
In addition, preset coordinate described in the embodiment of the invention is the coordinate system of practical application scene, preset coordinate system can be planar coordinate system or 3 d space coordinate system, when described preset coordinate is the planar coordinate system, the initial point of this two-dimensional coordinate system is identical with the screen coordinate system initial point, the X-axis of this two-dimensional coordinate system is consistent with the screen coordinate system X-axis, the Y-axis of this two-dimensional coordinate system is consistent with the screen coordinate system Y-axis, and the scale granularity of this two-dimensional coordinate system is consistent with the scale granularity of screen coordinate system.When described preset coordinate is that 3 d space coordinate is when being, the initial point of this three-dimensional system of coordinate is identical with the screen coordinate system initial point, the X-axis of this three-dimensional system of coordinate is vertical with terminal screen, Y-axis is consistent with the screen coordinate system X-axis, Z axis is consistent with the screen coordinate system Y-axis, and the scale granularity of this three-dimensional system of coordinate is consistent with the scale granularity of screen coordinate system.The embodiment of the invention does not limit the setting of screen coordinate system initial point, X-axis, Y-axis, for example, the initial point of screen coordinate system can be screen center's point, it also can be a preset in the screen lower left corner, the X-direction of screen coordinate system can be consistent with the terminal broadside, corresponding, the Y direction of screen coordinate system can be consistent with the terminal long side direction, perhaps, the X-direction of screen coordinate system can also be consistent with the terminal long side direction, and the Y direction of screen coordinate system can also be consistent with the terminal broadside.
102, terminal is obtained the tested point coordinate of people's an eye line on terminal screen.
The intersection point of described tested point behaviour an eye line and terminal screen.Be understood that easily people's an eye line is a ray take human eye as initial point, this directions of rays is the human eye direction of visual lines.Described tested point is when radiation exposure take human eye as initial point is to the terminal screen and the intersection point of terminal screen.
If 103 tested point coordinates and preset standard point coordinate coupling, the then described screen of terminal unlocking.
The pre-stored standard point coordinate that has as the release rule in the terminal, the standard point coordinate of storing in the terminal can be set in advance by equipment manufacturers, also can be arranged according to individual experience by the user, the standard point coordinate can also be selected by terminal when the user carries out unlocking screen at random in addition, and the embodiment of the invention does not limit this.
Described preset standard point coordinate is arranged in described screen coordinate system, the screen of terminal presents the point corresponding with described preset standard point coordinate (terminal presents corresponding point according to the coordinate of described preset standard point at screen), when the user wants that screen carried out release, can be by the point that presents on the screen of seeing terminal.When described preset coordinate was two-dimensional coordinate system, described preset coordinate system was identical with described screen coordinate system, and the coordinate of preset standard point in described preset coordinate is is identical with coordinate in described screen coordinate system.When described preset coordinate is three-dimensional system of coordinate, described preset coordinate is that arranging of Y-axis and Z axis is identical with arranging of described screen coordinate system X-axis and Y-axis respectively, and the Y coordinate of preset standard point in described preset coordinate system and Z coordinate are identical with the Y coordinate with X coordinate in described screen coordinate system respectively.It is identical that described preset coordinate system and the numerical value of described screen coordinate system arrange granularity.
Need to prove, when preset coordinate is three-dimensional system of coordinate, because the difference that coordinate system arranges, the Y coordinate of preset standard point in preset coordinate system is corresponding identical with X coordinate in screen coordinate system, and the Z coordinate of preset standard point in preset coordinate is is corresponding identical with Y coordinate in screen coordinate system.The difference of this coordinate points title only arranges decision by coordinate system, the former coordinate points all refers to the coordinate values of preset standard point on the terminal broadside in the practical application, latter's coordinate points all refers to the coordinate values of preset standard point on the terminal long side direction, does not affect the realization of the embodiment of the invention.
Terminal is after obtaining the tested point coordinate, judge whether this tested point coordinate and pre-stored standard point coordinate mate, when mating, both represent the release rule match, the terminal unlocking screen, when not mating, both represent that the release rule do not mate, terminal is not carried out the unlocking screen operation, and repeated execution of steps 101 is to step 103.
Need to prove, because preset standard point both had been arranged in screen coordinate system and also had been arranged in preset coordinate system, so when preset coordinate is the planar coordinate system, the preset standard point coordinate is a two-dimensional coordinate point (X, Y), when preset coordinate is that 3 d space coordinate is when being, the preset standard point coordinate is a three-dimensional coordinate point (X, Y, Z), the dimension of preset standard point coordinate should be consistent with the dimension of preset standard point coordinate.
The method of the unlocking screen that the embodiment of the invention provides, can obtain people's an eye line of user, and the intersection point of this people's an eye line line and terminal screen is defined as point coordinate to be tested, when this point coordinate to be tested with as the preset standard point coordinate of release rule coupling the time, the release terminal screen is realized carrying out unlocking screen by people's an eye line thus.Compared with prior art, can liberate user's both hands, reduce the complexity of unlocking screen, reduce the generation of release maloperation.
Need to prove that the screen of terminal can be touch-screen among the said method embodiment, also can be non-touch-screen.Equally, the screen of terminal is not restricted to touch-screen yet in follow-up each embodiment of the method/device embodiment, and follow-up described screen comprises touch-screen and non-touch-screen, and is distinct in the lump herein.
As to the detailed description of embodiment of the method shown in Figure 1 and further expand, the embodiment of the invention also provides a kind of method of unlocking screen, and as shown in Figure 2, described method comprises the steps:
201, terminal receives the startup screen release indication that the user sends.
For the behavior mistake of avoiding terminal that the user is swept terminal screen carelessly is identified as the user screen is carried out release, before carrying out unlocking screen, terminal need to be obtained startup screen release indication before unlocking screen.When the user need to carry out release to terminal screen, can be by triggering the programmable button startup screen release on the physical keyboard, perhaps the starting terminal unlocking screen also or is gently shaken in the predeterminated position startup screen release on the touch screen.When terminal receives the startup screen release indication of user's transmission, begin to carry out subsequent step.
Need to prove that step 201 is optional step, whether step 201 carries out the realization that can not affect subsequent step.
202, terminal is obtained people's an eye line of user.
The embodiment of the invention is that example describes with 3 d space coordinate, and corresponding, each coordinate points of obtaining is three-dimensional dimension coordinate (X, Y, Z).In the practical application, can be with reference to implementation shown in Figure 2 and in conjunction with the characteristics of planar coordinate system based on the implementation of planar coordinate system, accomplished under the prerequisite of not paying creative work, the embodiment of the invention repeats no more this.
Preset coordinate described in the embodiment of the invention is the coordinate system of practical application scene, preset coordinate system can be planar coordinate system or 3 d space coordinate system, when described preset coordinate is the planar coordinate system, the initial point of this two-dimensional coordinate system is identical with the screen coordinate system initial point, the X-axis of this two-dimensional coordinate system is consistent with the screen coordinate system X-axis, the Y-axis of this two-dimensional coordinate system is consistent with the screen coordinate system Y-axis, and the scale granularity of this two-dimensional coordinate system is consistent with the scale granularity of screen coordinate system.When described preset coordinate is that 3 d space coordinate is when being, the initial point of this three-dimensional system of coordinate is identical with the screen coordinate system initial point, the X-axis of this three-dimensional system of coordinate is vertical with terminal screen, Y-axis is consistent with the screen coordinate system X-axis, Z axis is consistent with the screen coordinate system Y-axis, and the scale granularity of this three-dimensional system of coordinate is consistent with the scale granularity of screen coordinate system.The embodiment of the invention does not limit the setting of screen coordinate system initial point, X-axis, Y-axis, for example, the initial point of screen coordinate system can be screen center's point, it also can be a preset in the screen lower left corner, the X-direction of screen coordinate system can be consistent with the terminal broadside, corresponding, the Y direction of screen coordinate system can be consistent with the terminal long side direction, perhaps, the X-direction of screen coordinate system can also be consistent with the terminal long side direction, and the Y direction of screen coordinate system can also be consistent with the terminal broadside.
Concrete, with the terminal screen center as the screen coordinate system initial point, with the terminal broadside as the X-direction of screen coordinate system, take the terminal long side direction as the Y direction of screen coordinate system as example, accordingly, as shown in Figure 3, the initial point of 3 d space coordinate system is that the central point of terminal screen, vertical terminal screen direction are that X-direction, terminal broadside are that Y direction, terminal long side direction are Z-direction.
The implementation of obtaining people's an eye line of user specifically comprises following three steps:
1) obtains the human eye pupil coordinate
Terminal comprises people's face of user by the camera collection image information in the image information of collection, terminal is obtained the on the face oculopupillary Y of people of people, Z coordinate b, c by Eye Recognition in the image information that gathers.
Terminal is determined user's facial contour according to face recognition technology in the image information that gathers, and obtains the size of facial contour.
Concrete, Fig. 4 is the image information of camera collection, the size of the facial contour that terminal is obtained is shown in Fig. 4 (a) and Fig. 4 (b).
Terminal is obtained user people's face to the vertical range of terminal screen according to size and the default mapping relations table of facial contour, i.e. the oculopupillary X coordinate of people a.Described default mapping relations table is used for characterizing the size of facial contour and the mapping relations between the distance.
Shown in Fig. 4 (a) and Fig. 4 (b), according to " far away little near large " principle, people's face and terminal screen distance are nearer, the facial contour of camera collection larger (Fig. 4 (a)), people's face and terminal screen distance are far away, the facial contour of camera collection less (Fig. 4 (b)).Equipment manufacturers can quantize mapping relations with setting up between facial contour size and people's face and the terminal screen distance according to this principle, and this mapping relations set is stored in the terminal as default mapping relations table.After camera collection arrived the size of facial contour, mapping relationship searching people's face and terminal screen distance according in the default mapping relations table obtained the oculopupillary X coordinate of people a thus, and then obtained human eye pupil coordinate a, b, c.
2) obtain the eyeball sphere centre coordinate
As shown in Figure 5, in the image information that gathers, terminal identifies human eye by Eye Recognition, then obtains respectively the Y at two canthus of human eye, Z coordinate Y1, Z1 and Y2, Z2.Terminal is obtained the oculocentric Y of people according to straight line mid-point formula (among the Y, among the Z)=[(Y1+Y2), (Z1+Z2)], Z coordinate, the i.e. Y of the eyeball centre of sphere, Z coordinate B, C.For example, when the Y when two canthus, Z coordinate are respectively (2,15) and (4,15), with the above-mentioned formula of (2,15) and (4,15) substitution, obtain the Y of the eyeball centre of sphere, the Z coordinate is (3,15), and B is that 3, C is 15.
Then, obtain the X coordinate of the eyeball centre of sphere.Because the human eye pupil is positioned at eyeball surface, and the eyeball centre of sphere is positioned at the center of eyeball spheroid, so between the two on X-direction the interval distance of an eyeball radius, terminal will be 1) in the oculopupillary X coordinate of people and the summation of default eyeball radius of obtaining, obtain thus the X coordinate A of the eyeball centre of sphere, and then acquisition eyeball sphere centre coordinate A, B, C.
In embodiments of the present invention, the default eyeball radius that manufacturer is preset in the terminal is 15mm (millimeter), and 15mm is the eyeball radius reference value with statistical significance.15mm in the embodiment of the invention is the example explanation only, and in the practical application, manufacturer can also obtain according to racial difference the eyeball radius reference value of targeted customer colony, and is preset in the terminal.
As shown in Figure 6, Fig. 6 is the birds-eye perspective of user's head, i.e. the vertical view of human eye eyeball.Shown in Fig. 6 (a), the explanation of above-mentioned acquisition eyeball centre of sphere X coordinate A is based on situation that the human eye pupil overlaps with the eyeball centre of sphere, be that the user faces the explanation that the situation of terminal screen is carried out, in such cases, the distance between the X coordinate A of people oculopupillary X coordinate a and the eyeball centre of sphere is default eyeball radius 15mm.And in Fig. 6 (b), when the user looked side ways terminal screen, the distance between the X coordinate A of people oculopupillary X coordinate a and the eyeball centre of sphere was less than default eyeball radius 15mm.In such cases, the implementation of the X coordinate A of the calculating eyeball centre of sphere is specific as follows:
Terminal is obtained the difference between the Y coordinate B of people oculopupillary Y coordinate b and the eyeball centre of sphere, i.e. 1 among Fig. 6 (b) by camera.Then calculate the default component value of eyeball radius on X-axis, i.e. g among Fig. 6 (b) according to Pythagorean theorem.Terminal as actual eyeball radius and the oculopupillary X coordinate of people a summation, obtains the X coordinate A of the eyeball centre of sphere with component value g.
Need to prove, in the relative position relation of user's head and terminal, because the initial point of three-dimensional system of coordinate is positioned at end side, so the eyeball centre of sphere arrives the distance of terminal than human eye pupil to the distance of terminal, thereby the X coordinate A of the eyeball centre of sphere behave oculopupillary X coordinate a and eyeball radius sum, but not poor.
3) obtain people's an eye line of user
Getting access to human eye pupil coordinate a, b, c and eyeball sphere centre coordinate A, B, after the C, according to " two one lines " principle calculated line equation, the represented straight line of this straight-line equation is people's an eye line of user.In embodiments of the present invention, three-dimensional system of coordinate cathetus equation embodies with the form of spatial parameter equation, and in two-dimensional coordinate system, straight-line equation also can be presented as the form such as Y=kX+b, in embodiments of the present invention, the spatial parameter equation only is the example explanation to straight-line equation, and the avatar of practical application cathetus equation is not limited only to this.
Concrete, the spatial parameter equation is shown in formula (1):
Wherein, parametric t is arbitrary value, formula (1) is done distortion can get formula (2):
With human eye pupil coordinate a, b, c is as X
1, Y
1, Z
1Substitution formula (1), with eyeball sphere centre coordinate A, B, C is as X
2, Y
2, Z
2Substitution formula (1) can get formula (3):
Formula (3) is required straight-line equation, namely represents the straight-line equation of people's an eye line.
203, terminal is obtained the tested point coordinate of people's an eye line on terminal screen.
After step 202 gets access to the straight-line equation of expression people an eye line, obtain the intersecting point coordinate of people's an eye line on terminal screen, i.e. tested point coordinate by this straight-line equation.Because plane, terminal screen place is the YZ plane of three-dimensional coordinate, so the X coordinate of any point is 0 on the terminal screen, in the formula (3) in the X=0 substitution step 202, can obtain the tested point coordinate of people's an eye line on terminal screen.
For example, as human eye pupil coordinate a, b, c are 2,3,5, and eyeball sphere centre coordinate A, B, C are 4,2,6 o'clock, and concrete numerical value substitution formula (3) is then had formula (4):
X=0 substitution formula (4) can be got Y=4, and Z=4 draws tested point coordinate m thus, and n is 4,4.
Need to prove that previous embodiment is mentioned, the coordinate dimensions that terminal is obtained should be consistent with place reference frame dimension, and the tested point coordinate that namely obtains in three-dimensional system of coordinate should be l, m, n.Because tested point coordinate and standard point coordinate all belong to the coordinate points on the terminal screen, its X coordinate perseverance is 0, the X coordinate does not have actual influence to the step of follow-up judgement comparison, and institute thinks and the simplification technical scheme tested point coordinate and standard point coordinate is defined as the two-dimensional coordinate point.
If 204 tested point coordinates and preset standard point coordinate coupling, the then described screen of terminal unlocking.
Preset standard point coordinate j, k be manufacturer or user preset and be stored in the coordinate points as the release rule in the terminal, also can be the terminal coordinate points of appointment at random when step 201 starts release.
Terminal judges tested point coordinate m, n and preset standard point coordinate j, whether k mates, when both mate, expression user's release " indication " and release rule match, terminal unlocking screen; When both did not mate, expression user's release " indication " was not mated with the release rule, and terminal is unlock screen not, and order execution in step 201 is obtained tested point coordinate m, n again to step 203 again.
The matched rule of tested point coordinate and preset standard point coordinate coupling has two:
1) when the tested point coordinate is identical with the preset standard point coordinate, namely tested point Y coordinate m is identical with preset standard point X coordinate j, and tested point Z coordinate n is when identical with preset standard point Y coordinate k, tested point coordinate and preset standard point coordinate coupling.
2) for avoiding the release rule too harsh, it is low that release is matched to power, can also suitably relax the release match-on criterion, is about to tested point coordinate m, and n falls into preset standard point coordinate j, is defined as the release rule match in the certain limit around the k.Concrete, the match-on criterion of release rule is, with standard point coordinate j, k is the center of circle, and the border circular areas take L as radius is defined as coupling circle (zone), tested point coordinate m, and to be release in this coupling circle successful as long as n falls into.Wherein, L is the coupling radius of circle that terminal manufacturer arranges according to physical condition, and for example L can be 5mm.
Above-described embodiment is illustrated as example as the release rule take a standard point coordinate, and is optional, can also carry out unlocking operation as the release rule to terminal with at least two standard point coordinates.Concrete, if a plurality of tested point coordinates that obtain successively and a plurality of preset standard point coordinate Corresponding matching, terminal unlocking screen then, wherein, terminal screen successively presents or presents simultaneously a plurality of points corresponding with a plurality of preset standard point coordinate.When terminal screen successively presented or present simultaneously at a plurality of corresponding with a plurality of preset standard point coordinate, the release rule not only comprised each standard point coordinate, also further comprised the sequencing of a plurality of standard point coordinate matchings.Concrete, terminal order is obtained a plurality of tested point coordinates, when a plurality of tested point coordinates during respectively from a plurality of different preset standard point coordinate Corresponding matching that order occurs, and the terminal unlocking screen.
For example, when terminal screen successively presented the point of two standard point coordinates, terminal order execution in step 201 to step 204 was obtained first tested point coordinate, and first tested point coordinate and first standard point coordinate are compared.When comparison result was coupling, terminal again order execution in step 202 was obtained second tested point coordinate, and second tested point coordinate and second standard point coordinate is compared to step 204, when comparison result is coupling, and the terminal unlocking screen.
Further, above-described embodiment be the tested point coordinate that obtains a human eye be the explanation that example is carried out, in fact terminal can also be obtained respectively a plurality of tested point coordinates of a plurality of users' many human eyes, and it is a user's many human eyes that these many human eyes are not limited to.When having at least individual tested point coordinate and preset standard point to sit coupling in a plurality of tested point coordinates of many human eyes that terminal is obtained, the terminal unlocking screen.
In actual applications, when user's release terminal screen, may have other staff and watch terminal screen attentively, if the tested point coordinate of user's human eye and preset standard point coordinate coupling, but when other staff watched on the terminal screen other except preset standard point attentively, terminal can't be carried out the release judgement.Be the erroneous effects of avoiding this kind situation that terminal unlocking is brought, can set when having at least individual tested point coordinate and preset standard point to sit coupling in a plurality of tested point coordinates of many human eyes that terminal is obtained the terminal unlocking screen.
The method of the unlocking screen that the embodiment of the invention provides, can obtain people's an eye line of user, and the intersection point of this people's an eye line line and terminal screen is defined as point coordinate to be tested, when this point coordinate to be tested with as the preset standard point coordinate of release rule coupling the time, the release terminal screen is realized carrying out unlocking screen by people's an eye line thus.Compared with prior art, can liberate user's both hands, reduce the complexity of unlocking screen, reduce the generation of release maloperation.
In addition, the method for the unlocking screen that the embodiment of the invention provides can also combine a plurality of standard point coordinates as the release rule, improves the release difficulty.Simultaneously, can obtain the tested point coordinate of a plurality of users' many human eyes, when having a tested point coordinate and preset standard point coordinate coupling in a plurality of tested point coordinates at least, the release terminal screen can avoid other staff on the impact of user's unlock screen.
With reference to the realization of said method embodiment, the embodiment of the invention also provides a kind of terminal, in order to realize said method embodiment, as shown in Figure 7, described terminal comprises: sight line acquiring unit 71, tested point acquiring unit 72, storage unit 73 and release indicating member 74, wherein
Sight line acquiring unit 71 is used for obtaining people's an eye line of user in preset coordinate system;
Tested point acquiring unit 72 is used for obtaining the tested point coordinate of described people's an eye line on terminal screen that described sight line acquiring unit 71 obtains, and described tested point is the intersection point of described people's an eye line and described screen;
Further, described preset coordinate is three-dimensional coordinate system, described preset coordinate is that initial point is described screen coordinate system initial point, the Y direction that described preset coordinate is is consistent with described screen coordinate system Y direction, the Z-direction that described preset coordinate is is consistent with described screen coordinate system Z-direction, the X-direction that described preset coordinate is is vertical described screen orientation, and described sight line acquiring unit 71 specifically is used for:
Obtain human eye pupil coordinate and eyeball sphere centre coordinate, obtain described people's an eye line according to the described human eye pupil coordinate that obtains, described eyeball sphere centre coordinate and default straight-line equation.
Further, as shown in Figure 8, described sight line acquiring unit 71 specifically comprises:
The human eye pupil obtains subelement 81, is used for obtaining the oculopupillary Y of described people according to Eye Recognition, and Z coordinate b, c obtains the oculopupillary X coordinate of described people a according to face recognition technology and default mapping relations table;
The eyeball centre of sphere obtains subelement 82, is used for obtaining according to Eye Recognition the Y of the described eyeball centre of sphere, Z coordinate B, and C obtains the X coordinate A of the described eyeball centre of sphere according to described people oculopupillary X coordinate a and default eyeball radius;
Described tested point acquiring unit 72 is concrete to be used for straight-line equation with 0 described people's an eye line of obtaining as the described sight line acquiring unit 71 of X substitution, obtains the Y of described tested point coordinate, Z coordinate m, n.
Further, described release indicating member 74 specifically is used for:
As the described tested point coordinate m that described tested point acquiring unit 72 obtains, the described preset standard point coordinate j of n and 73 storages of described storage unit when k is identical, sends the release indication to described screen;
As the described tested point coordinate m that described tested point acquiring unit 72 obtains, n falls into the described preset standard point coordinate j with 73 storages of described storage unit, and k is in the center of circle, the circle take preset length L as radius the time, sends the release indication to described screen.
Further, described release indicating member 74 is further used for:
During the described preset standard point coordinate coupling of the described tested point coordinate that obtains successively when described tested point acquiring unit 72 and 73 storages of described storage unit, send the release indication to described screen; Wherein said screen successively presents or presents simultaneously the point corresponding with the described preset standard point coordinate of described cell stores.
Further, described release indicating member 74 is further used for:
The tested point coordinate quantity of obtaining when described tested point acquiring unit 72 and when having the described preset standard point coordinate coupling of a tested point coordinate and 73 storages of described storage unit at least, sends the release indication to described screen greater than 1 the time.
The terminal that the embodiment of the invention provides includes but are not limited to mobile phone and the computer with shooting/camera function.
Need to prove that the terminal shown in Fig. 7 and Fig. 8 is used for the step of execution graph 1 or subscriber equipment terminal shown in Figure 2, terminal is only different for statement with the subscriber equipment terminal, does not have substantive difference.
The terminal that the embodiment of the invention provides, can obtain people's an eye line of user, and the intersection point of this people's an eye line line and screen is defined as point coordinate to be tested, when this point coordinate to be tested with as the preset standard point coordinate of release rule coupling the time, unlock screen is realized carrying out unlocking screen by people's an eye line thus.Compared with prior art, can liberate user's both hands, reduce the complexity of unlocking screen, reduce the generation of release maloperation.
With reference to the realization of said method embodiment, the embodiment of the invention also provides a kind of terminal, and in order to realize said method embodiment, as shown in Figure 9, described terminal comprises: camera 91, processor 92, storer 93 and screen 94, wherein,
Described camera 91 is used for obtaining people's an eye line of user in preset coordinate system;
Described processor 92 is used for obtaining the tested point coordinate of described people's an eye line on described screen 94, and described tested point is the intersection point of described people's an eye line and described screen 94;
Described storer 93 is used for storage preset standard point coordinate;
Described processor 92 also is used for when the preset standard point coordinate coupling of described tested point coordinate and 93 storages of described storer, send the release indication to described screen 94, wherein, described preset standard point coordinate is arranged in described screen 94 coordinate systems, and described screen 94 presents the point corresponding with described preset standard point coordinate.
Described preset coordinate is three-dimensional coordinate system, described preset coordinate is that initial point is described screen coordinate system initial point, the Y direction that described preset coordinate is is consistent with described screen 94 coordinate system Y directions, the Z-direction that described preset coordinate is is consistent with described screen 94 coordinate system Z-directions, the X-direction that described preset coordinate is is vertical described screen 94 directions, and described camera 91 specifically is used for:
Obtain human eye pupil coordinate and eyeball sphere centre coordinate;
Obtain described people's an eye line according to described human eye pupil coordinate, described eyeball sphere centre coordinate and default straight-line equation.
Described camera 91 specifically is used for:
Obtain the oculopupillary Y of described people according to Eye Recognition, Z coordinate b, c obtains the oculopupillary X coordinate of described people a according to face recognition technology and default mapping relations table;
Obtain the Y of the described eyeball centre of sphere according to Eye Recognition, Z coordinate B, C obtains the X coordinate A of the described eyeball centre of sphere according to described people oculopupillary X coordinate a and default eyeball radius;
Described processor 92 specifically is used for:
With the straight-line equation of 0 described people's an eye line of obtaining as the described camera 91 of X substitution, obtain the Y of described tested point coordinate, Z coordinate m, n.
Described processor 92 also is used for:
As described tested point coordinate m, the described preset standard point coordinate j of n and 93 storages of described storer when k is identical, sends the release indication to described screen 94; As described tested point coordinate m, n falls into the described preset standard point coordinate j with 93 storages of described storer, and k is in the center of circle, the circle take preset length L as radius the time, sends the releases indication to described screen 94.
Further, described processor 92 also is used for:
When the described preset standard point coordinate of the described tested point coordinate that obtains successively and 93 storages of described storer mates, send the releases indication to described screen 94; Wherein said screen 94 successively presents or presents simultaneously the point corresponding with described preset standard point coordinate.
The tested point coordinate quantity of described people's an eye line on described screen 94 of obtaining when described camera 91 is greater than 1, and when having a tested point coordinate and described preset standard point coordinate coupling at least, sends the releases indication to described screen 94.
The subscriber equipment that the embodiment of the invention provides includes but are not limited to mobile phone and the computer with shooting/camera function.
Need to prove that the terminal shown in Fig. 9 is used for the step of execution graph 1 or subscriber equipment terminal shown in Figure 2, terminal is only different for statement with the subscriber equipment terminal, does not have substantive difference.
The terminal that the embodiment of the invention provides, can obtain people's an eye line of user, and the intersection point of this people's an eye line line and screen is defined as point coordinate to be tested, when this point coordinate to be tested with as the preset standard point coordinate of release rule coupling the time, unlock screen is realized carrying out unlocking screen by people's an eye line thus.Compared with prior art, can liberate user's both hands, reduce the complexity of unlocking screen, reduce the generation of release maloperation.
The those skilled in the art can be well understood to, be the convenience described and succinct, only the division with above-mentioned each functional module is illustrated, in the practical application, can as required the above-mentioned functions distribution be finished by different functional modules, the inner structure that is about to device is divided into different functional modules, to finish all or part of function described above.The system of foregoing description, the specific works process of device and unit can with reference to the corresponding process among the preceding method embodiment, not repeat them here.
In several embodiment that the application provides, should be understood that, disclosed system, apparatus and method can realize by another way.For example, device embodiment described above only is schematic, for example, the division of described module or unit, only be that a kind of logic function is divided, during actual the realization other dividing mode can be arranged, for example a plurality of unit or assembly can in conjunction with or can be integrated into another system, or some features can ignore, or do not carry out.Another point, the shown or coupling each other discussed or direct-coupling or communication connection can be by some interfaces, indirect coupling or the communication connection of device or unit can be electrically, machinery or other form.
Described unit as separating component explanation can or can not be physically to separate also, and the parts that show as the unit can be or can not be physical locations also, namely can be positioned at a place, perhaps also can be distributed on a plurality of network element.Can select according to the actual needs wherein some or all of unit to realize the purpose of present embodiment scheme.
In addition, each functional unit in each embodiment of the present invention can be integrated in the processing unit, also can be that the independent physics of unit exists, and also can be integrated in the unit two or more unit.Above-mentioned integrated unit both can adopt the form of hardware to realize, also can adopt the form of SFU software functional unit to realize.
If described integrated unit is realized with the form of SFU software functional unit and during as independently production marketing or use, can be stored in the computer read/write memory medium.Based on such understanding, part or all or part of of this technical scheme that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in the storage medium, comprise that some instructions are with so that a computer equipment (can be personal computer, server, the perhaps network equipment etc.) or processor (processor) carry out all or part of step of the described method of each embodiment of the present invention.And aforesaid storage medium comprises: USB flash disk, portable hard drive, ROM (read-only memory) (ROM, Read-Only Memory), the various media that can be program code stored such as random access memory (RAM, Random Access Memory), magnetic disc or CD.
The above; be the specific embodiment of the present invention only, but protection scope of the present invention is not limited to this, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of described claim.
Claims (12)
1. the method for a unlocking screen is characterized in that, described method comprises:
In preset coordinate system, obtain people's an eye line of user;
Obtain the tested point coordinate of described people's an eye line on terminal screen, described tested point is the intersection point of described people's an eye line and described screen;
If described tested point coordinate and preset standard point coordinate coupling, the described screen of release then, wherein, described preset standard point coordinate is arranged in described screen coordinate system, and described screen presents the point corresponding with described preset standard point coordinate.
2. method according to claim 1, it is characterized in that, described preset coordinate is three-dimensional coordinate system, described preset coordinate is that initial point is described screen coordinate system initial point, the X-direction that described preset coordinate is is vertical described screen orientation, and the Y direction that described preset coordinate is is consistent with described screen coordinate system X-direction, and the Z-direction that described preset coordinate is is consistent with described screen coordinate system Y direction, described people's an eye line of obtaining the user specifically comprises:
Obtain human eye pupil coordinate and eyeball sphere centre coordinate;
Obtain described people's an eye line according to described human eye pupil coordinate, described eyeball sphere centre coordinate and default straight-line equation.
3. method according to claim 2 is characterized in that, the described human eye pupil coordinate that obtains specifically comprises:
Obtain the oculopupillary Y of described people according to Eye Recognition, Z coordinate b, c obtains the oculopupillary X coordinate of described people a according to face recognition technology and default mapping relations table;
The described eyeball sphere centre coordinate that obtains specifically comprises:
Obtain the Y of the described eyeball centre of sphere according to Eye Recognition, Z coordinate B, C obtains the X coordinate A of the described eyeball centre of sphere according to described people oculopupillary X coordinate a and default eyeball radius;
The described tested point coordinate of described people's an eye line on screen that obtain specifically comprises:
With 0 straight-line equation as the described people's an eye line of X substitution, obtain the Y of described tested point coordinate, Z coordinate m, n.
4. method according to claim 3 is characterized in that, if described tested point coordinate and preset standard point coordinate coupling, the described screen of release then specifically comprises:
If described tested point coordinate m, n and described preset standard point coordinate j, k is identical, then the described screen of release; Perhaps,
If described tested point coordinate m, n fall into described preset standard point coordinate j, k is in the center of circle, the circle take preset length L as radius, then the described screen of release.
5. the described method of any one in 4 according to claim 1 is characterized in that described method further comprises:
If the described tested point coordinate that obtains successively and described preset standard point coordinate coupling, the then described screen of release; Wherein said screen successively presents or presents simultaneously the point corresponding with described preset standard point coordinate.
6. method according to claim 5 is characterized in that, described method further comprises:
If the tested point coordinate quantity of described people's an eye line on described screen is greater than 1, and have a tested point coordinate and described preset standard point coordinate coupling, the then described screen of release at least.
7. a terminal is characterized in that, described terminal comprises:
The sight line acquiring unit is used for obtaining people's an eye line of user in preset coordinate system;
The tested point acquiring unit is used for obtaining the tested point coordinate of described people's an eye line on terminal screen that described sight line acquiring unit obtains, and described tested point is the intersection point of described people's an eye line and described screen;
Storage unit is used for storage preset standard point coordinate;
The release indicating member, when the preset standard point coordinate that is used for the described tested point coordinate that obtains when described tested point acquiring unit and described cell stores mates, send the release indication to described screen, so that described coupling is carried out release according to described release indication, wherein, described preset standard point coordinate is arranged in described screen coordinate system, and described screen presents the point corresponding with described preset standard point coordinate.
8. terminal according to claim 7, it is characterized in that, described preset coordinate is three-dimensional coordinate system, described preset coordinate is that initial point is described screen coordinate system initial point, the X-direction that described preset coordinate is is vertical described screen orientation, the Y direction that described preset coordinate is is consistent with described screen coordinate system X-direction, and the Z-direction that described preset coordinate is is consistent with described screen coordinate system Y direction, and described sight line acquiring unit specifically is used for:
Obtain human eye pupil coordinate and eyeball sphere centre coordinate, obtain described people's an eye line according to the described human eye pupil coordinate that obtains, described eyeball sphere centre coordinate and default straight-line equation.
9. terminal according to claim 8 is characterized in that, described sight line acquiring unit specifically comprises:
The human eye pupil obtains subelement, is used for obtaining the oculopupillary Y of described people according to Eye Recognition, and Z coordinate b, c obtains the oculopupillary X coordinate of described people a according to face recognition technology and default mapping relations table;
The eyeball centre of sphere obtains subelement, is used for obtaining according to Eye Recognition the Y of the described eyeball centre of sphere, Z coordinate B, and C obtains the X coordinate A of the described eyeball centre of sphere according to described people oculopupillary X coordinate a and default eyeball radius;
Described tested point acquiring unit specifically is used for the straight-line equation with 0 described people's an eye line of obtaining as the described sight line acquiring unit of X substitution, obtains the Y of described tested point coordinate, Z coordinate m, n.
10. terminal according to claim 9 is characterized in that, described release indicating member specifically is used for:
As the described tested point coordinate m that described tested point acquiring unit obtains, the described preset standard point coordinate j of n and described cell stores when k is identical, sends the release indication to described screen;
As the described tested point coordinate m that described tested point acquiring unit obtains, n falls into the described preset standard point coordinate j with described cell stores, and k is in the center of circle, the circle take preset length L as radius the time, sends the release indication to described screen.
11. the described terminal of any one in 10 according to claim 7 is characterized in that described release indicating member is further used for:
During the described preset standard point coordinate coupling of the described tested point coordinate that obtains successively when described tested point acquiring unit and described cell stores, send the release indication to described screen; Wherein said screen successively presents or presents simultaneously the point corresponding with the described preset standard point coordinate of described cell stores.
12. terminal according to claim 11 is characterized in that, described release indicating member is further used for:
The tested point coordinate quantity of obtaining when described tested point acquiring unit and when having the described preset standard point coordinate coupling of a tested point coordinate and described cell stores at least, sends the release indication to described screen greater than 1 the time.
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| CN201210420708.3A CN102981736B (en) | 2012-10-29 | 2012-10-29 | The method of unlocking screen and terminal |
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