CA2420081C - Control of depth movement for visual display with layered screens - Google Patents

Control of depth movement for visual display with layered screens Download PDF

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Publication number
CA2420081C
CA2420081C CA2420081A CA2420081A CA2420081C CA 2420081 C CA2420081 C CA 2420081C CA 2420081 A CA2420081 A CA 2420081A CA 2420081 A CA2420081 A CA 2420081A CA 2420081 C CA2420081 C CA 2420081C
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Prior art keywords
plane
visual indicator
user
screen
display
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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CA2420081A
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French (fr)
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CA2420081A1 (en
Inventor
Gabriel Damon Engel
Pita Witehira
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Aptiv Technologies Ltd
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PureDepth Ltd
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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
    • G02B30/50—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images the image being built up from image elements distributed over a 3D volume, e.g. voxels
    • G02B30/52—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images the image being built up from image elements distributed over a 3D volume, e.g. voxels the 3D volume being constructed from a stack or sequence of 2D planes, e.g. depth sampling systems
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
    • G06F3/0481—Interaction techniques based on graphical user interfaces [GUI] based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance
    • G06F3/04812—Interaction techniques based on cursor appearance or behaviour, e.g. being affected by the presence of displayed objects
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
    • G06F3/0481—Interaction techniques based on graphical user interfaces [GUI] based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance
    • G06F3/04815—Interaction with a metaphor-based environment or interaction object displayed as three-dimensional, e.g. changing the user viewpoint with respect to the environment or object
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
    • G06F3/0484—Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range
    • G06F3/0486—Drag-and-drop
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/08—Cursor circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/20—Image signal generators
    • H04N13/275—Image signal generators from 3D object models, e.g. computer-generated stereoscopic image signals
    • H04N13/279—Image signal generators from 3D object models, e.g. computer-generated stereoscopic image signals the virtual viewpoint locations being selected by the viewers or determined by tracking
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30—Image reproducers
    • H04N13/388—Volumetric displays, i.e. systems where the image is built up from picture elements distributed through a volume
    • H04N13/395—Volumetric displays, i.e. systems where the image is built up from picture elements distributed through a volume with depth sampling, i.e. the volume being constructed from a stack or sequence of 2D image planes
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/14—Display of multiple viewports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/10—Processing, recording or transmission of stereoscopic or multi-view image signals
    • H04N13/106—Processing image signals
    • H04N13/122—Improving the 3D impression of stereoscopic images by modifying image signal contents, e.g. by filtering or adding monoscopic depth cues
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/20—Image signal generators
    • H04N13/286—Image signal generators having separate monoscopic and stereoscopic modes
    • H04N13/289—Switching between monoscopic and stereoscopic modes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/20—Image signal generators
    • H04N13/296—Synchronisation thereof; Control thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30—Image reproducers
    • H04N13/361—Reproducing mixed stereoscopic images; Reproducing mixed monoscopic and stereoscopic images, e.g. a stereoscopic image overlay window on a monoscopic image background
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30—Image reproducers
    • H04N13/398—Synchronisation thereof; Control thereof

Abstract

A multi-level visual display system has a plurality of screens (1, 2) spaced in the depth direction. A user can move a visual indicator such as a cursor (3) between the screens (1, 2), via an input device such as a mouse button. In drawing applications a visual link such as a line can be created between two screens. In game applications a user can move an image both within and between screens (1, 2), by dragging a cursor while moving it between the screens, to provide an illusion of three dimensional movement. The screens (1, 2) may comprise layered liquid crystal displays.

Description

CONTROL OF DEPTH MOVEMENT FOR VISUAL DISPLAY WITH LAYERED SCREENS
TECHNICAL FIELD

This invention relates to a visual display system.
BACKGROUND ART

Particularly, the present invention relates to a visual display system including multilevel screens which are placed physically apart.

Such screens are described Witehira el al. in PCT Application Nos.
PCT/NZ98/00098 and PCT/NZ99/00021. These documents were respectively published on 26 August 1999 and 2 September 1999 as WO/1999/042889 and WO/19991044095.

These devices are created by combining multiple layers of selectively transparent screens.
Each screen is capable of showing an image. In preferred embodiments the screen layers are liquid crystal display. Preferably the screens are aligned parallel to each other with a pre-set distance between them.

With this device images displayed on the screen furthest from view (background screen) will appear at some distance behind the images displayed on the screen closer to the viewer (foreground screen). The transparent portions in the foreground screen will allow viewers to see images displayed on the background screen.

This arrangement allowing multiple screens allows images to be presented at multiple levels giving the viewer true depth without use of glass or lens.

Up until now, software has been written to create visual sequences on the multi-level screens.
These sequences have been mainly passive, mainly for viewing rather than for interaction.
While the visual effect of these sequences is spectacular, it will be desirable if potential uses of a multi-level screen display could be explored further.

It is an object of the present invention to address this problem, or at least to provide the public with a useful choice.

Aspects of the present invention will now he described by way of example only with reference to the following description.

DISCLOSURE OF INVENTION

According to one aspect of the present invention there is provided a visual display system including multi-level screens spaced physically apart, wherein each screen has a two-dimensional plane, a visual indicator, an input device, a user selectable input, the visual display system being characterised in that the user can use the user selectable input to move the visual indicator via the input device out of the two-dimensional plane of a particular screen.

According to another aspect of the present invention there is provided a method of using a visual display system which has multi-level screens spaced physically apart, wherein each screen has a two-dimensional plane, the visual display system also including a visual indicator, an input device, a user selectable input, the method characterised by the step of the user using the selectable input to move the visual indicator out of the twodimensional plane of a particular screen and on to another screen and on to another screen.

One aspect of the present invention there is provided media containing instructions for the operation of visual display system as described.

In preferred embodiments of the present invention the multi-level screens are similar to that described in PCT Application Nos. PCT/NZ98/00098 and PCT/NZ99/00021, although this
2 should not be seen as limiting.

The term two-dimensional plane refers to the effective viewing plane on a particular screen, similar to that seen on a normal display screen.

The visual indicator may be any type of indicator, for example a cursor, image, icon or screen image. It is envisaged that the visual indicator is something which can move in response to the user of the system via some input mechanism.

The input device may be any suitable input device, for example a mouse, tablet data glove, keyboard, touch screen, joystick, trackball, pen, stylus, touch pad, voice and so forth.

The user selectable input is preferably an input the user can make to effect the operation of software running the display device via the input device.

For example, if the input device is a mouse, then the user selectable input may be a mouse button. If the input device is a joystick, then the user selectable input may be the trigger. If the user input is a keyboard, then the user selectable input may be arrow keys.
And so forth.

We envisage that the present invention could be used extensively by those in the graphics industry. Therefore one embodiment in the present invention is envisaged that by having the input device as a pen or stylus, the present invention could be utilised in theses industries to its fullest.

In some embodiments, the user selectable input may actually be a software button on a touch screen that may be independent of the input device. This allows standard input devices and drivers to be used without modification.

In further embodiments of the present invention, the input device shall be referred to as a mouse and the user selectable input shall be referred to. as a mouse button.
The mouse button may be an existing button on the mouse, or in some embodiments may be a dedicated button for use with the present invention.

This should not be seen as limiting.

The visual indicator shall now be referred to as a cursor, although this should not be seen as limiting.

The user can use a mouse to move a cursor around a display screen.as can be achieved with usual software. However, with one embodiment of the present invention, the user can then click
3 a particular mouse button to cause the visual indicator to move from one screen to another screen. In one embodiment the applicant uses the centre button or a configurable button on a three button mouse, but this should not be seen as limiting In preferred embodiments the software controlling the cursor position is supplemental to usual mouse drives.

Therefore a program can run as usual with standard mouse drive commands but the cursor position between screens can change as a consequence of the interaction of the supplemental program responding to the additional input from the mouse.

This ability enables the user to actually interact with different screens and work on separate screens in terms of having an input device which can interact with whichever screen has been selected. The advantages of this feature are self apparent.

In some embodiments, the movement from the two-dimensional plane of one screen to another screen may be discrete and it may appear that the visual indicator merely jumps from one screen to the other and be at the same x-y coordinate with the only change being in the z axis.
In other embodiments, there may be more of a linear movement perceived as a consequence of the movement from one screen to the other.

For example, the present invention may be used in conjunction with a drawing package. The person drawing may start drawing on the front screen of the visual device using the mouse and cursor.

The person then may wish to take advantage of the three dimensional quality allowed by the present invention and effectively draw in the z axis (the x and y axis having already been drawn in on the two-dimensional screen). This may be achieved by the user clicking the mouse button and dragging the cursor effectively so it appears to pass from one screen to the other screen with an image (say a line) appearing to provide a visual bridge between the front screen and another screen or screens in the background.

In other embodiments of the present invention this ability may be used with particular total screen images. For example, the present invention may be used with an interactive game which gives the impression that the user is moving deep within a scene. For example, the user may be flying a craft in the game and as the user moves forward in the game, the images may pass from the background screen or screens to the foreground screen giving the illusion of full movement. In this embodiment the visual indicator may be the images and the input device a
4 joy-stick.

Aspects of the present invention will now be described with reference to the following drawings which are given by way of example only.

BRIEF DESCRIPTION OF DRAWINGS

Further aspects of the present invention will become apparent from the following description which is given by way of example only and with reference to the accompanying drawings in which:

Figure 1 illustrates one embodiment of the present invention, rand Figure 2 illustrates a second embodiment of the present invention, and Figure 3 illustrates a third embodiment of the present invention.

BEST MODES FOR CARRYING OUT THE INVENTION

Figures ]a and lb illustrate a stylised version of one embodiment of the present invention at work. These figures have foreground screens 1 and background screens 2.

It should be appreciated that the reference to just two screens is by way of example only and the present invention may work in relation to multiple numbers of screens.

Figure la shows the positioning of the visual indicator 3 in the form of a cursor arrow on the front foreground screen 1.

In this embodiment of the present invention a simple click of a mouse button causes the cursor 3 to appear in exactly the same x y coordinates as on the foreground screen one, but, positioned on the background screen 2.

Thus in this embodiment, the user selectable input merely does a direct transpose in the z axis between screens.

Figure 2 likewise has a foreground screen 1 and a background screen 2. In Figure 2a, a triangle 4 has been drawn on the x y two-dimensional plane of the foreground screen 1.

In Figure 2b, to give the triangle 4 depth, the user has selected and dragged the image in the x y direction to give not only the image of a triangle 5 on the background screen 2, but also a plane in the z axis 6 for finding a solid-looking representation. As the screens are physically quite separate, the illusion of the solid wall 6 is accomplished by sophisticated software shading techniques.

Figure 3 again has a foreground screen I and background screen 2.

This embodiment of the present invention can be used for moving through three-dimensional landscapes. For example, in Figure 3a, there is pictured a flower 7 on the foreground screen, tree 8 along with a cloud 9 are positioned on the background screen 2.

The user may then use the input device to effectively move through the scene visually. This causes the flower depicted in Figure 3a to disappear from the foreground screen as shown in Figure 3b. This also causes the tree 8 to move from the background screen 2 to the foreground screen 1. The cloud 9 being in the far background stays on the background screen 2.

Thus it can be seen that the present invention allows considerable amount of interaction between the user and the screens.

Aspects of the present invention have been described by way of example only and it should be appreciated that modifications and additions may be made thereto without departing from the scope of the appended claims.

Claims (16)

Claims:
1. A visual display system including:

a multi-level screen display including:

a first display screen comprising a first plurality of pixels, wherein said first display screen is configured to display a visual indicator using said first plurality of pixels; and a second display screen comprising a second plurality of pixels, wherein said first and second display screens overlap, and wherein each of said first and second display screens is partially transparent, and a user interface component comprising a user-selectable input component, wherein said user-selectable input component is configured to move said visual indicator from a first plane to a second plane in response to a first user interaction with said user-selectable input component, and wherein said first plane corresponds to said first display screen.
2. The system of Claim 1, wherein said second plane corresponds to said second display screen.
3. The. system of Claim 1 or Claim 2, wherein said user interface component is selected from a group consisting of a mouse, a keyboard, a joystick, tablet data glove, a touch-screen, a touch pad a pen and a stylus.
4. The system of Claim 1 or Claim 2, wherein said user interface component is a voice-activated user interface component.
5. The system of any one of Claims 1 to 4, wherein said user-selectable input comprises a button of said user interface component.
6. The system of any one of Claims 1 to 5, wherein said user interface component is configured to move said visual indicator on said second plane in response to a second user interaction with said user interface component.
7. The system of any one of Claims 1 to 6, wherein said user interface component is further configured to move said visual indicator on said second plane after movement of said visual indicator from said first plane to said second plane.
8. The system of any one of Claims 1 to 7, wherein said visual indicator is selected from a group consisting of an icon, a cursor, an image and a screen image.
9. The system of any one of Claims 1 to 8, wherein said visual indicator is associated with an application selected from a group consisting of a gaming application, a drawing application and a graphical application.
10. The system of any one of Claims 1 to 9, wherein said first and second plurality of pixels overlap.
11. The system of any one of Claims i to 10, wherein said user-selectable input component is further configured to display an image between said visual indicator on said first plane and said visual indicator on said second plane.
12. A method of using a visual display system as claimed in any one of Claims 1 to 11, said method comprising:

- displaying said visual indicator using said first plurality of pixels of said first display screen of said multi-level screen display, - detecting a said first user interaction with said user interface component, wherein said detecting further comprises detecting a said first user interaction with said user-selectable input component; and - moving said visual indicator from a first plane to a second plane in response to said detecting a first user interaction.
13. The method of Claim 12, further comprising:

- in response to detecting a second user interaction with said user interface component, moving said visual indicator on said second plane.
14. The method of Claim 13, wherein said moving said visual indicator further comprises moving said visual indicator on said second plane after movement of said visual indicator from said first plane to said second plane.
15. The method of Claim 14 further comprising:

in response to said detecting said first user interaction, displaying an image between said visual indicator on said first plane and said visual indicator on said second plane.
16. A computer readable medium having computer readable program code embodied therein for causing a computer system to perform a method of using a visual display system as claimed in any one of Claims 12 to 15.
CA2420081A 1999-08-19 2000-08-18 Control of depth movement for visual display with layered screens Expired - Lifetime CA2420081C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NZ337332 1999-08-19
NZ33733299 1999-08-19
PCT/NZ2000/000160 WO2001015132A1 (en) 1999-08-19 2000-08-18 Control of depth movement for visual display with layered screens

Publications (2)

Publication Number Publication Date
CA2420081A1 CA2420081A1 (en) 2001-03-01
CA2420081C true CA2420081C (en) 2011-10-11

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US (2) US7724208B1 (en)
EP (1) EP1212745B1 (en)
JP (2) JP4368083B2 (en)
AT (1) ATE317582T1 (en)
AU (1) AU769120B2 (en)
CA (1) CA2420081C (en)
DE (1) DE60025926T2 (en)
WO (1) WO2001015132A1 (en)

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