WO2012110507A1

WO2012110507A1 - Operation of an image reproduction arrangement for simultaneously reproducing at least three images

Info

Publication number: WO2012110507A1
Application number: PCT/EP2012/052506
Authority: WO
Inventors: Johannes Sigwart; Marco Lopes
Original assignee: Tridelity Ag
Priority date: 2011-02-16
Filing date: 2012-02-14
Publication date: 2012-08-23
Also published as: DE102011004242A1

Abstract

The invention relates to an image reproduction arrangement (71) for simultaneously reproducing at least three images (1 - n), wherein - the arrangement (71) comprises a two‑dimensional image representation matrix (V), by the matrix elements (R, G, B) of which, said matrix elements being arranged in lines and columns, the images (1 - n) can be represented, - the arrangement (71) comprises an optical device (D), which is designed to prevent, from corresponding viewing angle ranges (72 - 76), in each case viewing of parts of the images (1 - n) represented by the image representation matrix (V), such that from the viewing angle ranges (72 - 76) one of the images (1 - n) is recognisable in each case and pairs of viewing angle ranges (72, 73; 73, 74; 74, 75; 75, 76), which are spaced apart from one another in a manner corresponding to the intraocular distance of a viewer (78), make possible for the viewer (78) at a given point in time in each case viewing of an image pair (1, 2; 2, 3; 3, 4; 4, 5) assigned to the pair of viewing angle ranges (72, 73; 73, 74; 74, 75; 75, 76), - the arrangement (71) comprises a controller (ST) for controlling the display of the images (1 - n) by the two‑dimensional image representation matrix (V), wherein the controller (ST) is designed to control the display of the same images (1 - n) and/or of images of the same temporal image sequence (1 - n) successively in different regions of the two‑dimensional image representation matrix (V), such that the image pairs (1, 2; 2, 3; 3, 4; 4, 5) which are respectively assigned to a pair of viewing angle ranges (72, 73; 73, 74; 74, 75; 75, 76) are formed successively by alternate images (1 - n) or image sequences.

Description

Operation of a picture display device for simultaneous playback of at least three

pictures

The invention relates to a picture display device for the simultaneous reproduction of at least three pictures, wherein the arrangement has a two-dimensional Bilddarstellungs- matrix, through which arranged in rows and columns matrix elements, the images can be displayed. The invention further relates to a method for the simultaneous reproduction of at least three images by means of such a two-dimensional image

Image drawing matrix.

In particular, the invention relates to the field of autostereoscopic imaging of images, i. two of the images give the viewer the impression of a three-dimensional scene. For example, DE 697 18 534 T2 describes a

autostereoscopic display device, wherein a matrix display panel has individually addressable display elements arranged in aligned rows and columns perpendicularly thereon. A lens plate extends in

Substantially parallel to the level of the playback disk. It has an array of elongated, parallel lens elements, so that individual images, by means of

Playback plate can be displayed, are perceived for the left and right eye of the audience. When the left-eye image and the right-eye image correspond to the natural viewpoints when viewing an object or a scene, the viewer takes the image generated on the display panel as

three-dimensional representation true. According to the document will be on the

But not just two pictures, but more than two pictures, e.g. six pictures, shown. If the viewer changes the angle under which he sees the

Viewing image display plate, he can therefore look through the lens assembly through his right and left eye other images. Thereby the different matrix elements, i. the display elements according to DE 697 18 534 T2, each used only for the representation of one of the images. Here are the run

Longitudinal axes of the lenses oblique to the column direction. The orientation of the

Lens assembly is tuned to the use of the matrix elements that the

Longitudinal axes of the lens elements define a direction in the plane of

Display panel is located and e.g. the upper left corners of the next adjacent ones

Matrix elements intersected by one column per two lines. The optical device with which it is to be achieved that the observer uses his two eyes to look at different images on the two-dimensional image display matrix may have additional means in addition to or instead of the lenses. An alternative to the use of the lens array is an array of prisms. Another preferred embodiment of the optical device is an array of slots, the slots being in a plane parallel to each other, the plane being parallel to the plane of the two-dimensional image display matrix the viewing of the matrix elements of the matrix being possible only through the slits. On the other hand, there are areas between the slits which are opaque or through which at least much less light passes than through the slits. Such a slot arrangement is made, for example, by applying a layer of opaque material to a transparent support plate. The layer of opaque material covers the areas between the slots. As with the elongated lenses, which are known in principle from DE 697 18 534 T2, also defines such a slot arrangement one direction, namely the direction of the edges of the slots or the direction of the center axes of the slots and thus the edges of the visible areas of the Matrix. Considering a straight line running in the face of the imaging matrix in this direction, ie running parallel to the edges of the slots or the longitudinal axes of the lenses or prisms, then this straight line defines at least a portion parallel to an edge a recognizable from a certain angle range of the image display matrix runs or forms this edge itself. Where exactly the edge of a recognizable area of

Depiction matrix runs in the plane of the matrix depends on the viewing angle. At each viewing angle, however, the edges always run in the same direction defined by the optical device.

The optical device is tuned to the individual images that are on the

Imaging matrix are shown that from the different angles or viewing angles each one of the images is recognizable. In other words, the viewer looks with each eye through each of the elongated ones

Lens elements, through each of the elongated prisms or through each of the elongated slots predominantly matrix elements that represent a particular image. "Predominantly" is to be understood that through the lenses, prisms or slits also a surface portion of the image display matrix is recognizable, which is formed by matrix elements, which are used for the representation of another image or for displaying no image are or are unused. Preferably, however, the predominant

Area fraction used to represent the particular image is at least 40% of the elongated strip area visible through the lens, prism, or slot.

As already mentioned in relation to DE 697 18 534 T2, can be found on the

Image display matrix more than two images are displayed. For example, it is possible to capture the individual images with a plurality of (e.g., 5 or 7) cameras viewing a scene from different angles. From the cited document it is known, e.g. to present seven views of a scene on the same picture display. Advantageously, the optical device and the regions of the image presentation matrix corresponding to the different images are coordinated with one another in such a way that a viewer gets a three-dimensional impression of the depicted scene even if he moves relative to the screen. For example, sees the observer at a first position with his left eye image 2 and his right eye image 3 and sees the viewer when he moves further to the right, e.g. with his left eye image 3 and his right eye image 4. The image pairs 2 and 3 as well as 3 and 4 each represent a different stereoscopic view of the scene.

In particular, the invention relates to such image display devices in which it is prevented by the optical device that from respective viewing angle ranges in each case a view of parts of the images represented by the image display matrix is possible. As a result, one of the images is recognizable from each of the viewing angle regions, and pairs of viewing angle regions which are spaced from each other according to the interpupillary distance of a viewer allow the viewer to view each pair of images associated with the pair of viewing angle regions. If at least one image of the image pair is an image of a temporal image sequence (such as a motion picture film or video camera shot), without changing its position relative to the image display device, the viewer can view a three-dimensional visual impression film.

Furthermore, the invention particularly relates to such image display devices in which at a given time the same images can be viewed from different viewing angles. For example, in the above-mentioned arrangement of slots as an optical device, the observer views the ones visible through the individual slots Surface areas of the image display matrix in a straight line. At a

Lens arrangement or arrangement of prisms or other optical device applies in the result, however, the corresponding. Although in this case the light rays do not propagate continuously straight from the surface of the image presentation matrix to the eye of the observer, the observer sees from each viewing angle (ie with each of his eyes) only a part of the surface of the image presentation matrix , However, the viewer does not see just one with each eye

but sees through each of the plurality of slots, lenses, prisms, and / or others

Parallax barrier parts of the same image to be displayed. Accordingly, there are several areas between the areas that are used to represent a particular image at a given time to represent

various other images to be displayed. For example, The areas on the image display matrix that are used to display exactly three images at a time alternate cyclically from left to right on the image representation matrix. From left to right, an area for displaying the first image is followed by an area for displaying the second image, followed by an area for

Presentation of the third picture. The area for displaying the third image is again followed by an area for displaying the first image, etc. However, in practice, typically more than three images are displayed simultaneously. Image display devices for displaying five to nine images are already commercially available. However, picture display devices for the simultaneous display of several tens to one hundred pictures have also been realized. Conceivable and subject of

Development is even the presentation of more than a hundred images simultaneously.

The said cyclical sequence of partial regions of the image representation matrix, which are each used to display partial contents of different images, corresponds to a logical sequence of the images. In the mentioned example of exactly three pictures displayed simultaneously, the logical order is 1 -2-3, i. the first image is displayed in the first subarea, the second image is displayed in the second subarea adjacent in a predetermined direction, and the third image is displayed in the next adjacent third subarea. "Adjacent" refers to the viewer's perception of (due to the optical device) does not necessarily have to coincide with the actual order of the subareas in the matrix.

The order is repeated according to the cyclic representation mentioned. There is the problem that the subareas for displaying the last image in the logical sequence (eg, image 3) again follow subareas that are used to represent the first image of the logical order. There is therefore a pair of viewing-angle areas in which the viewer, with one eye, looks at the last picture in the logical order of the pictures and with his other eye looks at the first picture in the logical order of the pictures. In all other pairs of viewing angle areas, however, he looks with one eye at the first or another image of the logical order and with the other eye the image with the next higher order number in logical order. In the example mentioned, the serial numbers were 1, 2 and 3.

Furthermore, the invention particularly relates to the case in which pairs of successive images in the logical sequence convey a desired, given visual impression to the viewer. In particular, e.g. for the above illustrated case of five pictures, each taken by a camera, with the cameras side by side in logical order from the associated pictures, each taking a scene from a different angle, with each pair in logical order adjacent images a realistic three-dimensional visual impression of the recorded scene to be conveyed to the viewer. However, the pair of pictures consisting of the last picture in the logical order and the first picture in the logical order does not give a realistic impression. In the general case, this image pair gives no desired impression.

It is therefore an object of the present invention to provide a picture display device for the simultaneous display of at least three pictures and a method for the simultaneous reproduction of at least three pictures, which the viewer in a space of viewing angle areas in which he pairs of pictures from

contemplated by different pairs of viewing angle regions, gives a desired, given visual impression everywhere, when the viewer views an image display matrix of the image display device.

A basic idea of the present invention is to not constantly represent images which are to be displayed simultaneously and / or images of temporal image sequences to be displayed simultaneously in the same subregions of the image representation matrix.

Rather, the images are successively in different areas of the two-dimensional image display matrix displayed. This is changing the

Perception of the observer solely by the representation of the images in successively different areas of the matrix. However, it has surprisingly been found that the viewer does not perceive this as disturbing. Especially in the presentation of temporal sequences of images falls to the viewer alone through the representation in

successively displayed different areas of images generated effect or only marginally. At the same time, however, it is prevented that there are at least a pair of viewing angle areas from which the observer constantly looks at the first image of the logical sequence with one eye and views the last image of the logical sequence with the other eye. At least the areas of the two-dimensional

Image rendering matrix, in which the last and first images of the logical order are displayed, are changed over time. Preferably, at least the areas immediately adjacent to these areas, in which the second and second to last images of the logical sequence are displayed, are also changed.

It is particularly preferred, however, that the association of the areas of the image display matrix and the order number of the images in the logical sequence for all areas of the image display matrix is changed over time. In particular, the following is proposed:

A picture display device for simultaneously displaying at least three pictures, wherein

the arrangement has a two-dimensional image display matrix, by means of which the matrix elements arranged in rows and columns can be displayed,

- The arrangement comprises an optical device which is designed, from

each viewing angle to prevent viewing of parts of the images represented by the image display matrix, so that from the

Viewing angle ranges each one of the images is recognizable and pairs of

Viewing angle ranges which are spaced apart according to the distance of the eye of a viewer, allow the observer at any given time to view an image pair associated with the pair of viewing angle regions,

the arrangement a controller for controlling the display of the images by the

two-dimensional image display matrix, wherein the controller is configured to control the display of the same images and / or images of the same temporal image sequence sequentially in different areas of the two-dimensional image display matrix, so that the image pairs, each one pair of View angle ranges are assigned, are formed successively by changing images or image sequences.

Furthermore, a method for the simultaneous reproduction of at least three images by means of a two-dimensional image display matrix is proposed, by means of which the matrix elements arranged in rows and columns represent the images, wherein

- An optical device is used and the images in such a way

Display image matrix are shown that the optical device from respective viewing angle areas each prevents viewing of parts of the images represented by the image display matrix, so that from the

Viewing angle ranges each one of the images is recognizable and pairs of

the display of the images is controlled by the two-dimensional image display matrix such that the same images and / or images of the same temporal image sequence are successively displayed in different regions of the two-dimensional image display matrix such that the image pairs, each one of a pair of

View angle ranges are assigned, are formed successively by changing images or image sequences.

Furthermore, it is preferred that the image areas for displaying the same image and / or an image of the same temporal image sequence are changed at a fixed frequency. In other words, in each area of the image display matrix used for displaying an image content of a specific image, a new image content that belongs to another image or another temporal image sequence preferably appears regularly after a predetermined period in which a particular image content has been displayed. In the case of another image, this is not an image of the same image sequence.

For the frequency of the change or for the mean frequency of the change, it is preferred that the frequency is greater than 1 Hz, in particular greater than 10 Hz, preferably greater than 50 Hz and particularly preferably in the range of 80 to 120 Hz. In this case, preferably a frequency is selected which differs from the frequency of a Any existing frame rate for the repetition of the image representation on the matrix and the frequency of the recording times of the images of a temporal image sequence differs.

With regard to the number of simultaneously displayed images, a number of more than three, in particular five to nine, simultaneously displayed images, and more preferably more than ten simultaneously displayed images is preferred. When the images are changed in all regions of the image display matrix and there are significantly more than three images to be displayed at one time, the effect of having the one eye perceive the last image of the logical order of the images in different pairs of viewing angle regions at specific times is perceived and with the other eye the first image of the logical order of the images is perceived, thereby obtaining an undesirable impression, less important than just three images to be displayed. For only three images to be displayed simultaneously, e.g. with a uniform time distribution of the images to be displayed on the various available areas of the matrix in each pair of viewing angle areas for one third of the viewing time of unwanted visual impression and arise only for two-thirds of the viewing time a desired impression. Although the period in which a desired impression arises outweighs the one third to two thirds

Overall perception still be distracting. With an increasing number of images to be displayed simultaneously and uniform distribution of the disturbing pair of images, a significantly better overall impression can be achieved.

Of course, it is preferred that the images consecutive in the logical order of the images, despite the change of the image areas in which they are displayed, are displayed so as to give the desired visual impression to the viewer. For example, The subareas of the image representation matrix, in which consecutive images are displayed in the logical sequence of the images, follow one another from left to right (based on the perception of the viewer). By changing the areas in which the images are displayed, in this case, however, does not change that the sections still follow each other from left to right. If e.g. in a further left-hand subarea, first of all, image 2 is shown (i.e., a sub-content of image 2 shown) and in a right-hand subarea

After a change of the areas used for the representation in the left partial area then picture 3 and in 4, or it could be displayed after the change in the left-hand sub-area of FIG. 1 and displayed in the second sub-area of FIG. 2. Of course, it is also possible not to represent a next adjacent image in the logical order of the images by changing the areas used for the representation. However, this is not preferred except for the transition between the last and the first picture in the logical order. Rather, it is preferable, unless the last and the first image in the logical sequence are concerned, that by changing the representation of the images in other regions of the image representation matrix, a next adjacent image or image of a next adjacent temporal image sequence in the logical sequence is pictured.

In particular, it is preferred that the controller of the image display device is configured to control the display of the same images and / or the images of the same temporal image sequence so that the images and / or image sequences are ordered in a fixed logical order and sequentially into the logical sequence individual areas of the two-dimensional image presentation matrix.

It is further preferred that with regard to the method the display of the same pictures and / or the pictures of the same temporal picture sequence is controlled so that the pictures and / or picture sequences are arranged in a fixed logical order and according to the logical order one after the other in the individual areas

two-dimensional image display matrix.

In particular, the controller may be configured such that the images and / or images of the temporal image sequences at least during an operating phase of

Display the image display device exclusively ascending in the logical order in the image areas and that after the display of the last image and / or an image of the last sequence of logical order in the respective image area, the first image and / or an image of the first sequence of logical order sequence in is displayed in the respective image area.

With regard to the method, this corresponds to the fact that the images and / or images of the temporal image sequences, at least during an operating phase of the image display device, are displayed only in ascending order in the logical sequence in the image regions in which, after the display of the last image and / or an image of the last image sequence of the logical sequence in the respective image region, the first image and / or an image of the first image sequence of the logical sequence is displayed in the respective image region.

When it is said that images are displayed only in ascending order in the logical order in the image areas, this refers to each individual image area in which a change in the representation of images in

takes place according to the invention. It is so in an order of z. For example, five images in a particular image area after the first image, the second image, then the third image, then the fourth image, then the fifth image and then the first image again (i.e., part contents of the image or the temporal image sequence) shown. This procedure is at least during an operating phase of

Image display device performed. During another phase of operation, or permanently during operation of the picture display device, the following alternative procedure may be performed: The control is the same

configured such that the images and / or images of the temporal image sequences are displayed alternately ascending and descending in the logical sequence in the image areas, at least during an operating phase of the image display device.

This corresponds to the method that the images and / or images of the temporal image sequences alternately ascending and descending in the logical order in the at least during an operating phase of the image display device

Image areas are displayed.

In the case of alternately ascending and descending representation, it is preferred that all images or temporal image sequences are displayed in each image region, so that in all possible pairs of viewing angle regions undesired visual impressions arise as briefly as possible on the perception of the last image in the logical image

Sequence with one eye and the perception of the first image in logical order by the other eye are due. For example, in the case of five images or temporal image sequences to be displayed simultaneously, a sequence of the image order numbers 1 -2-3-4-5-4-3-2 follows for a specific subarea of the matrix. In an image area adjacent to this image area, the sequence is 2-3-4-5-1 -5-4-3. The same applies to the other subareas of the matrix. The sequences for each sub-area are repeated in the same way. The controller preferably resorts to the addresses or address ranges of the matrix elements of the image presentation matrix. As mentioned above, it is off

DE 697 18 534 T2 discloses that an image display matrix has addressable image display elements, which are arranged in rows and vertical columns. In this case, partial regions of the matrix, which represent only partial contents of an image at any given time, can advantageously be suitable

Address ranges are summarized. If the different address ranges of the subareas of the matrix used for displaying different images, e.g. only in certain but not all locations of the address, the controller can change the image content used

Subsections in a simple manner cause the fact that the destination addresses for the representation of the sub-contents are changed only in the locations of the address in which the sub-areas for displaying different images differ.

The image areas in which image content of certain images are displayed, z. Thus, the length of each block in the column direction is defined by the number of consecutive column direction matrix elements forming the block. As a result, the total height of the block is also defined in the column direction. This overall height is advantageously greater, in particular in the landscape mode (matrix width greater than matrix height), than the width of the matrix elements to be determined in the row direction.

The image display device may, in various ways, have the property of recognizing the blocks recognizably in the manner according to the invention. On the one hand, the optical device, as already described, must be matched to the blocks and their distribution via the image presentation matrix. A criterion for the suitability or

Adaptation of the optical device to the block representation has already been mentioned, namely that in the strip-shaped, recognizable regions predominantly (at least with respect to individual other images) matrix elements of the blocks should be recognizable, which serve to represent a specific image.

In particular, the image display matrix may be a matrix of color matrix elements of three primary colors, wherein the colors change cyclically in the column direction, so that in each case three columnar direction successive matrix elements comprise a matrix element of each of the three primary colors.

The blocks may be used to define block rows whose row direction is parallel to the row direction of the matrix rows and whose row height is equal to the total height of the matrix elements of the respective block that are adjacent to one another in the column direction.

Embodiments of the invention will now be described with reference to the accompanying drawings. The individual figures of the drawing show:

1 shows the assignment of the individual matrix elements of an image display matrix to the images which are displayed simultaneously, wherein the representation in FIG. 1 can also be interpreted as a digital image data record, FIG.

Fig. 2 of the better recognizability because of an enlarged section of the

Representation in Fig. 1,

3 shows an arrangement for recording a plurality of images of an object from different viewing angles and for generating a corresponding digital image data record for the simultaneous display of the images on an image display matrix.

Fig. 4 shows schematically a side view of a two-dimensional

Image display with a slit mask, which depends on

Viewing angle only allows the viewing of strip-shaped areas on the matrix, according to the shape, size and arrangement of the slits of the slit mask relative to the matrix display,

FIG. 5 shows the image representation matrix of FIG. 1, but with the image shown in FIG

Top view also parts of a slot arrangement are visible, which is in the viewing direction in front of the plane of the image display matrix,

FIG. 6 shows the arrangement from FIG. 5 from a different viewing angle, so that other strip-shaped areas in the plane of the image presentation matrix can be recognized through the slots of the slot arrangement.

Fig. 7 schematically shows a picture display device and a viewer

a first time the representation of pictures and

Fig. 8 shows schematically the picture display device and the viewer at a second time of the display of pictures.

Fig. 1 shows an image display matrix V. This is a greatly enlarged view, which can only recognize a part of the matrix elements, which at a matrix to be used for the practice. In the illustrated case, the matrix V 1 has 1 columns and 30 rows. In practice (in landscape format), for example, in the filling HD format, there are 1920 columns of native pixels and 1080 lines of native pixels, ie a total of 3 x 1920 columns and 1080 lines. However, the block scheme explained with reference to FIG. 1, ie the grouping of individual color matrix elements into blocks, which are used to display certain images, as well as the positioning of the blocks relative to one another, can also be extended to image representation matrices with very much more by regularly continuing the block scheme Matrix elements, such as filling HD format, transferred. For example, the block scheme shown in Fig. 1 would continue such that right next to the eleventh column shown, a twelfth column follows, etc., which has the same block assignment as the second column.

The matrix elements of the matrix V in FIG. 1 are color matrix elements which can each represent only one of the three primary colors red, green, blue. Unlike in FIG. 1, however, the color matrix elements can also follow one another cyclically in a different order, for example, in a different order. B. red, blue, green. The matrix element shown in the first row and the first column, upper left in FIG. 1 is designated by the reference Raa. In this case, "R" stands for "red", since the matrix element Raa can represent a red color pixel. In the example shown in FIG. 1, color matrix elements for displaying the same primary color are always located in the same row of matrix elements. Therefore, the color matrix element Rab arranged to the right of the element Raa is also an element for representing the red base color. The second and third letters in the label of the matrix elements designate the row or column in which the matrix element is located. The red matrix element in the first row and the third column is therefore denoted by the reference Rae, and the element shown in the upper right in FIG. 1 in the first row and eleventh column is designated by the reference character Rak. In the second line of the color matrix elements are in the embodiment elements for displaying the green base color, in the third row are matrix elements for displaying the blue base color. This order of colors continues cyclically over the rows following each other in the column direction. Therefore, e.g. the sixth line again a line to represent the blue base color. The first matrix element, i. in the first column of the sixth line, is therefore denoted by the reference Bfa.

The block diagram of the exemplary embodiment illustrated in FIG. 1 has in each case blocks of eight color matrix elements which follow each other in the column direction. The block located at the top left in FIG. 1 therefore has the elements associated with Raa, Gba, Bca, Rda, Gea, Bfa, Rga and Gha are designated. The next following in the column direction element already belongs to the next block, which is used to represent another image. It should be designated by the reference Bia. In addition, in FIG. 1, for better recognition of the colors of the individual matrix elements, each element serving to represent the red base color is checkered, each element serving to represent the green base color is dotted and each element serving to represent the blue base color , filled by a white area. In addition, in each rectangular frame, which represents the outer dimensions of a color matrix element, there is a digit from 1 to 5. This numeral designates which of several images to be displayed simultaneously at a particular point in time uses the matrix element. In the embodiment, five images are simultaneously represented by the matrix V. It follows in

Block line direction, i. in a row consisting of eight color matrix elements arranged one above the other in the column direction, to the right of a block which serves to display image 1, a block which serves to represent image 3. This block is followed by a block in the next column, which serves to display Figure 5, followed by a block in the next column, which serves to represent Figure 2, followed by a block in the next column Presentation of Figure 4 is used.

According to the invention, each of the blocks is not used merely to display an image or a temporal image sequence, but alternates the assignment of the block to the ordinal number of the image to be displayed as time progresses. Before describing a possible different assignment than in Fig. 1, however, it will be explained why the assignment scheme shown in Fig. 1 corresponds to a logical order of the pictures 1-5, so that a viewer moves right or left relative to the matrix each sees the next picture in logical order.

The assignment of the blocks to the five different images illustrated in FIG. 1 has a meaning, in particular in the case of an autostereoscopic display of images.

For example, the viewer sees from a certain relative position to the

Image display matrix V with its left eye image 1 and with its right eye image 2. The not shown in Fig. 1 lens arrangement, arrangement of prisms or arrangement of slots is designed accordingly. Preferably, therefore, the images 1 and 2 have been created to contain the image information corresponding to the viewer for a particular three-dimensional impression. Be the pictures For example, taken by individual cameras, these cameras are preferably in the position in which the respective eye of the viewer would be, which would directly view the object or the scene. The total of five images may preferably have been recorded in this way or generated in other ways (eg by simulations) in that they have five views

represent different relative positions of an object or a scene.

It is particularly preferred that the individual images associated

Relative positions to the object or scene are chosen so that respectively

different pairs of images correspond to the relative position of the two eyes of a viewer so that each of the several different pairs creates a three-dimensional visual impression. For example, For example, both the pair of pictures 1, 2, the pair of pictures 2, 3, the pair of pictures 3, 4, and the pair of pictures 4, 5 may be one

realistic three-dimensional visual impression of a scene or object on the viewer effect.

As mentioned, the so-called block scheme is determined not only by the height of the blocks in the column direction, but also by the relative position of the blocks used for the same image. Further, the size of the blocks includes not only the extent in the column direction but also the width of the blocks. In general, it is preferred, not only with respect to the embodiment illustrated in FIG. 1, that the blocks each have only the width of a matrix element in the row direction. However, it would also be conceivable for a block to be e.g. extends over two or more columns. In this case, over the height of the block, all the corresponding matrix elements in the various adjacent columns would be part of the block. But even in this case, the total height of the block is greater than the width of the block in the row direction.

The block diagram shown in Fig. 1 has the feature that for the

Representation of a particular image used blocks by one column per two

Block line heights are offset from each other. In other words, in the direction defined by the optical device as the edge line direction of the visible regions, the next adjacent block for displaying the same image is only in the next but one block line. For example, the block of the elements Raa ... Gha has as the next adjacent block in this direction the block with the matrix elements Gqb to Bxb. However, in the second block line from the top in the illustration of FIG. 1 there are also blocks for displaying the same image. Although, for example, in the column d and in the second block line (starting with matrix element line i) is also a block to Representation of the first image is present and this block with respect to the distance of the nearest to the block of the elements Raf to Ghf. However, these two blocks do not appear in the same striped area that a viewer can see when viewing the matrix through the optical device. Also, the offset in the column direction between these two blocks is two columns. The observer therefore does not clearly perceive the spatial proximity of these two blocks.

The direction defined by the optical device, which itself is not shown in Fig. 1, is represented by four dashed lines LA, LB, LC and LD. At a given angle of view, these lines may be considered as the center axes of the stripe-shaped recognizable areas of the matrix. In the illustrated example, these lines LA to LD run exactly through the geometric center of the blocks to represent the third image. "Geometric center" means that the midpoint lies between the column-fourth and fifth elements of the block, and in the row direction at half the width of the matrix elements. Therefore, when the observer moves relative to the image display device and therefore the center lines LA, LB, LC, and LD shift to the right or left, the image 3 no longer appears, but next either the image 2 or the image 4, as the case may be in which direction he moves. As a result, the images are thus shown on the image display device as ordered from left to right in the logical order. It would also be possible to arrange the images in a corresponding manner from right to left in the logical order.

The previously defined offset of the blocks in the direction defined by the optical device, which is not visible even in FIG. 1, continues regularly over the entire matrix. Therefore, starting from the block with the

Matrix elements Bid to Rpd is the block closest to this direction in the following column e and two block rows lower, starting with the element Rye as the uppermost of the eight elements following the column direction of the block. This block is not completely shown in Fig. 1. The same offset by one column and two block lines also exists in the blocks for displaying the other images.

FIG. 2 shows a detail of the illustration in FIG. 1. The section contains the matrix elements shown at the top left in FIG. 1, namely the first three block rows and the first six columns. Fig. 3 shows schematically an arrangement with five cameras K1 to K5, which receive an object OB from different angles and each generate an image or a temporal sequence of images. Preferably, the different viewing directions of each two adjacent cameras K correspond to the different viewing directions of the right and left eyes of a viewer, if he would be at the location of the camera. The digital image signals, which consequently contain the image information of the object OB dissolved in lines and columns, become a single image from the respective camera K.

Memory ST1, ST2, ST3, ST4 or ST5 transmitted. The

Memory devices ST, together with a total image data memory SB, are part of a processing device AB for processing the image data, so that the image data is transferred from the image display device, for example to the image display device. B. the device of Fig. 1, in which can be shown. Furthermore, a controller ST is provided which the

Processing device AB and / or directly control the image display matrix V to effect the inventive change of the images and / or image sequences in the image areas of the image display matrix V.

Each of the image data memories ST transfers either the digital images to be displayed unchanged to the entire image data memory SB or transmits modified image data to the overall image data memory SB. When the image data is transferred as it is from the respective image data memory ST to the entire image data memory SB, modification of the image data is made by the controller ST combined with the image data memory SB. "Unchanged" refers to an image, e.g. the picture taken with the camera K1 at a certain time. "Unchanged" does not refer to the temporal sequence of image data. Rather, the term refers to the selection of blocks used in the present invention to represent the particular image. By processing the respective image, those pixels which correspond to the blocks of the image presentation matrix which are used to display the image are selected from the original unmodified image data produced by the respective camera or otherwise in the respective image matrix. In the example of the block diagram of FIG. 1 and FIG. 2, in the upper left corner of FIG. 1, the pixels selected on the

Matrix elements Raa to Gha represent are. All pixels corresponding to matrix elements representing the other images are not selected and / or eliminated. This can be realized, for example, by transmitting only the selected pixels from the respective image data memory ST to the overall image data memory SB. Alternatively, the controller ST may generate a new overall image matrix for display on the image representation matrix V (eg, the matrix of Figure 1 and Figure 2). The overall image contains exactly the pixels that are to be displayed on the image presentation matrix to simultaneously display the different images. For example, the controller ST can retrieve from the individual image data memories ST the pixels which are to be filled in according to the block scheme. The generation of such an overall image is known per se. For example, for the method described in DE 69718534 T2, the creation of such a total image is required, but not with the block diagram explained with reference to FIG. Also, the overall image does not necessarily have to be in advance in a total image data storage. Rather, the pixels that are to be displayed in the blocks can be assigned sequentially for each image directly from the associated one

Image data memory (eg corresponding to the image data ST1 to ST5) are retrieved. The controller ST calls z. B. cyclically in the order of images 1, 2, 3, 4 and 5 each of the valid pixels for a time, which are to be displayed in the blocks of the image, from the individual image data storage from. In this way, time varying images can be displayed in the manner of a film. According to the invention, the order of the retrieval can be changed as the time progresses. For example, for a combination of blocks, the z. B. in Fig. 1 is assigned to the image 3, according to the representation of the temporal image sequence 3 no longer retrieves the image data from image data ST3, but from image data memory ST4 for displaying the image sequence 4 or from image data storage ST2 for displaying the image sequence 2. The controller ST therefore only needs to retrieve images from another image data store to display another image sequence on the blocks.

Alternatively, the complete image data of the images 1-5 may be stored in the entire image data memory SB, and the controller ST retrieves the required partial images. As a further alternative, the control ST can only act on the operation of the matrix V and the image data which is completely retrieved for display on the matrix V from the total image data memory SB are allocated by the controller partially, to the required extent, to the corresponding regions of the matrix V. ,

Figure 4 shows schematically a side view or a section through a

Image representation matrix V, which may be for example the matrix of Figure 1 and 2 or Figure 3. Above the matrix V, a slot arrangement can be seen. In the direction perpendicular to the image plane of Figure 4 extend through the slot arrangement slots obliquely, corresponding to the intersection angle between the edges of the strip-like areas recognizable by the viewer and the column direction. In contrast, the line direction is horizontal in the image plane of FIG. 4. The regions denoted by the reference symbols Da, Db, De, Dd, De, Df, Dg and Dh are opaque. The spaces between these areas D are the slots.

5 shows the Bilddarstellungs- matrix V with the block diagram of Figure 1, while additionally a part of an embodiment of a slot arrangement is shown. In the slot arrangement is z. B. around the formed by the areas Db, De and Dd of Figure 2 2 slots. Other opaque areas are present in practice, but not shown for reasons of clarity in Figure 5. The opaque region are not completely opaque shown in Figure 5, but by extending obliquely to the column direction bars, which are hatched with lines in the vertical direction.

In the embodiment of Figure 5 can be seen in the 2 slots in the

opaque areas D, that there are mainly areas of

Are matrix elements that form blocks to represent the second image. The uppermost matrix element lying in the left-hand slot is the matrix element Rad. However, partial areas of matrix elements which do not belong to blocks for the representation of the second image are also recognizable in the two slots. In the illustrated case, these are subareas of blocks that serve to represent the first and the third image. The proportion of the recognizable areas formed by the blocks 2 with respect to the individual other recognizable blocks is much greater than 50%, namely at least 65%. This results from the selected slot width of half a matrix element width. However, the slot width can basically also be selected larger or smaller. FIG. 5 corresponds to z. B. a viewing angle in which the viewer with the right eye views the image display device.

Figure 6 shows the same opaque areas Db, De and Dd in the same

Relative position to the image display matrix V as Figure 5. However, since the slots are arranged in the viewing direction at a distance in front of the plane of the image display matrix V (see also Figure 4), the strip-shaped area, which can be seen through a slot from Viewing angle of the viewer dependent. Compared to the situation according to FIG. 5, the position of the observer in the situation in FIG. 6 is further to the left. Figure 6 therefore corresponds z. B. a viewing angle in which the viewer with the left eye views the image display device. The flashing angles according to FIGS. 5 and 6 therefore form z. A pair of viewing angles from which the viewer can view images simultaneously with his left and right eyes. In this case, as is usually the case in practice, it is assumed that the distance of the observer from the plane of the image representation matrix is much greater than the distance of the image

opaque areas from the plane of the image presentation matrix.

Unlike in Figure 4, in practice, the extent of the opaque areas in the viewing direction will be much smaller. For example, the opaque areas in

Viewing direction only an extension of a few micrometers. In contrast, the width of the slots z. B. preferably equal to half the length of the matrix elements in the row direction.

FIG. 7 schematically shows a picture display device 71 and a viewer 78. The viewer 78 perceives image contents represented by the picture display device 71 both in the left edge area of the picture display device and in the right edge area of the picture display device and, of course, therebetween. Starting from the left and right edges of the image display device 71, rectilinear rays are respectively drawn, which represent the edges of viewing angle regions 72, 73, 74, 75, 76. In the diamond-shaped region in which the left eye of the observer 78 is located, the viewing angle regions 73 which extend from the right and left edge regions of the image display device intersect. The observer therefore sees with his left eye the image which corresponds to the viewing angle range 73. With his right eye, the viewer sees the image corresponding to the viewing angle range 74. Would the viewer 78 move relative to the picture display device to the right or left, he would z. B. with his left eye in the

Viewing angle range 72 and enter with his right eye in the viewing angle range 73 or reach with his left eye in the viewing angle range 74 and with his right eye in the viewing angle range 75.

According to the invention at the time, which is shown in Figure 7, in the

Viewing angle range 72 shown in Figure 1, in the viewing angle range 73 shown in Figure 2, shown in the viewing angle range 74 Figure 3, etc. The illustrations in Figure 7 and Figure 8 are to be understood schematically. Not only five images can be displayed simultaneously, corresponding to the five viewing angle ranges shown, but any other number of images that is at least three. This will be done expressed that at the bottom of the picture, the ordinal numbers 1, 2, 3 ... n of the simultaneously displayed images are plotted. Where n is a positive integer greater than 2.

According to the invention, as time progresses in the viewing angle areas, a different image or images of another image sequence are displayed again and again.

Accordingly, FIG. 8 shows the same schematic arrangement as in FIG. 7, but with image 2 or an image of the image sequence 2 being shown in the viewing angle region 72, in image angle region 3 image 3 or images of the image sequence 3 are represented, etc., as indicated by the image Figure 7 modified ordinal numbers at the bottom of Figure 8 is shown. The time shown in FIG. 8 is, in particular, a time after the time shown in FIG. At an even later date then z. For example, in the viewing angle region 73, image 3 or images of the image sequence 3 can be displayed, in the viewing angle region 73, image 4 or images of the image sequence 4, etc.

It should be noted that although the case shown in Fig. 7 shows that the pictures 1 to n are displayed from left to right in the logical order. In practice, however, it is usually possible to view the images not only from one viewing angle range but from several viewing angle ranges. For example, in the case of FIG

Viewing angle range 76 another viewing angle range, in which again Figure 1 can be viewed and left of viewing angle range 72 follows a viewing angle range in the image n = 5 can be considered. Therefore, the case shown in FIG. 7 is not a special case compared to the case shown in FIG.

Claims

claims

1 . A picture display device (71) for simultaneously displaying at least three pictures (1-n), wherein

the arrangement (71) has a two-dimensional image representation matrix (V)

has, by their arranged in rows and columns matrix elements (R, G, B), the images (1 - n) can be displayed,

the arrangement (71) has an optical device (D) which is designed to prevent in each case a viewing of parts of the images (1-n) represented by the image presentation matrix (V) from corresponding viewing angle regions (72-76), one of the images (1-n) is recognizable from the viewing-angle regions (72-76) and pairs of viewing-angle regions (72, 73; 73, 74; 74, 75; 75, 76) corresponding to the distance between the eyes of an observer (78 ) are spaced from each other, each viewing the viewer (78) at a given time with an image pair (1,2,3; 3, 4, 4, 5),

- The arrangement (71) comprises a controller (ST) for controlling the display of the images (1 - n) by the two-dimensional image display matrix (V), wherein the controller (ST) is designed to display the same images (1 - n ) and / or images of the same temporal image sequence (1-n) successively in different regions of the two-dimensional image representation matrix (V), so that the image pairs (1, 2, 2, 3, 3, 4, 4, 5), each associated with a pair of viewing angle regions (72, 73; 73, 74; 74, 75; 75, 76) are successively formed by alternating images (1 - n) or image sequences.

2. Image display device according to the preceding claim, wherein the

Control (ST) is configured to control the display of the same images (1 - n) and / or the images of the same temporal image sequence (1 - n) so that the images (1 - n) and / or image sequences (1 - n) are ordered in a fixed logical order and displayed sequentially according to the logical order in the individual areas of the two-dimensional image display matrix (V).

3. The image display device according to claim 2, wherein the controller (ST) is designed such that the images (1 - n) and / or images of the temporal image sequences (1

at least during an operating phase of the image display device (71) are displayed in ascending order in the logical order in the image areas and that after the display of the last image (s) and / or an image of the last image sequence (s) of the logical order in the the first image (1) and / or an image of the first image sequence (1) of the logical order is displayed in the respective image area.

4. A picture display device according to claim 2, wherein the controller (ST) so

is configured such that the images (1 - n) and / or images of the temporal image sequences (1

- n) alternately ascending and descending in the logical sequence in the image areas are displayed at least during an operating phase of the image display device (71).

5. Method for the simultaneous reproduction of at least three images (1-n) by means of a two-dimensional image representation matrix (V), by means of whose matrix elements (R, G, B) arranged in rows and columns the images (1-n) are displayed, In particular, a method of operating the arrangement according to any one of claims 1-4, wherein

- an optical device (D) is used and the images (1 - n) are represented by the image presentation matrix (V) such that the optical device (D) from respective viewing angle regions (72, 73; 73, 74; 75, 75, 76) each prevent viewing of parts of the images (1-n) represented by the image display matrix (V), so that the

Viewing angle ranges (72, 73; 73, 74; 74, 75; 75, 76) of each of the images (1 - n) and pairs of viewing angle regions (72, 73; 73, 74; 74, 75; 75, 76) which are spaced apart according to the distance of eye of a viewer (78), for the viewer (78) at a given time each view of one of the pair of viewing angle areas (72, 73; 73, 74; 74, 75; 75, 76) Image pairs (1, 2, 2, 3, 3, 4, 4, 5),

the display of the images (1-n) is controlled by the two-dimensional image display matrix (V) such that the same images (1-n) and / or images of the same temporal image sequence (1-n) successively in different

Areas of the two-dimensional image presentation matrix (V) are displayed, so that the image pairs (1, 2, 2, 3, 3, 4, 4, 5), each one pair of

View angle ranges (72, 73, 73, 74, 74, 75, 75, 76) are assigned, one after another of alternating images (1 - n) or image sequences (1 - n) are formed.

6. Method according to the preceding claim, wherein the display of the same pictures (1-n) and / or the pictures of the same temporal picture sequence (1-n) is controlled such that the pictures (1-n) and / or picture sequences (1-n) n) are ordered in a fixed logical order and are displayed sequentially in the individual areas of the two-dimensional image display matrix (V) according to the logical order.

7. The method of claim 6, wherein the images (1 - n) and / or images of the temporal image sequences (1 - n) are displayed at least during an operating phase exclusively ascending in the logical order in the image areas and wherein after the display of the last image (n) and / or an image of the last image sequence (s) of the logical order in the respective image area the first image (1) and / or an image of the first image sequence (1) of the logical

Order is displayed in the respective image area.

8. The method of claim 6, wherein the images (1 - n) and / or images of the temporal image sequences (1 - n) are displayed at least during an operating phase ascending and descending in the logical order in the image areas.