KR101659998B1 - Method for displaying image information and autostereoscopic screen - Google Patents

Abstract

The present invention provides image information to a sutostereoscopic screen suitable for simultaneously displaying a plurality of two or more views each visible in at least one of a plurality of offset viewing zones 12, A first stereoscopic half-image and a second stereoscopic half-image, which can simultaneously detect a stereoscopic image and are generated together, are reproduced on the screen , The first stereoscopic half-image is laterally shifted and is seen in two successive regions (16), and the second stereoscopic half-image is seen in the two regions (16) Image is reproduced so as to be seen in the three-dimensional region (17) located between the two regions (16). The invention also relates to a corresponding autostereoscopic screen.

Description

[0001] The present invention relates to a method for displaying image information and an autostereoscopic screen,

The invention relates to a method of displaying image information on an autostereoscopic screen in accordance with the provisions of the main claim and also relates to a method of displaying image information on at least one of a plurality of offset viewing zones To a corresponding autostereoscopic screen suitable for simultaneously displaying a plurality of two or more views, each of which is visible.

This type of screen, which is also referred to as an autostereoscopic display, is a type of screen in which, in a conventional mode of operation, a plurality of two or more complementary half-stereoscopic images are reproduced and a large number of people are reproduced three- In particular a multiuser display or a multiperson screen, which is capable of detecting the presence of a user. In addition to a matrix screen with many subpixels, a typical screen includes a beam splitter grid suitable for guiding light emitted from each subpixel in at least one of the viewing zones. Thereby, such a screen is only suitable for reproducing a stereoscopic half-image, and is capable of viewing a stereo image that is satisfactory to only one viewer, Differs from a so-called single view display in that even a monoimage can not be detected.

However, in the prior art, the operation of a screen in a manner known as a multiperson screen presumes that there is image information of a corresponding number of views first. Such a screen would have to be recorded by many technically complicated, offset, corresponding cameras, and in a particularly complex way, only a camera system which is difficult to handle in the image information of two stereoscopic half-images The necessity must be determined by the computer. Furthermore, since the cross-talk that causes confusion of adjacent image channels can not actually be avoided, and because the viewer of the screen can view the two half-images precisely and at a specific location in order to form a stereimage, Therefore, reproduction quality can be achieved with very limited accuracy. However, since the viewer typically moves at least a bit, none of the above persons can see the stereoimage satisfactorily.

It is an object of the present invention to provide at least one other viewer as well as a viewer which is intended to sense a stereo image in a comfortable and three-dimensional satisfactory quality, (Auto stereoscopically) display of stereoimages capable of sensing the possible image content of these stereoscopic images with good quality (i.e., with monoimage). It is also an object of the present invention to propose a corresponding screen that reproduces image information of a stereoscopic image in a manner satisfying a necessary requirement.

This object is achieved according to the invention by a screen having the features of the claims, further characterized by a method having the characteristic features of the main claim, in addition to the features of the main claim. Advantageous embodiments and improvements of the invention are disclosed in the dependent claims.

In the proposed method, a first stereoscopic half-image is offset and appears in two successive regions, whereas a second stereoscopic half-image is seen in two successive regions, A stereoscopic half-image and a second half-image which are located between the regions and which are simultaneously detectable to be seen in a smaller stereozone than these two regions and which together produce a stereimage, - A stereoscopic half-image is reproduced on the screen.

As a result, one eye of the first viewer is positioned in one of the above-mentioned two regions in which a first stereoscopic half-image is visible, and the other eye of the first viewer is positioned in the above-mentioned stereozone If one selects the head position of the viewer, the first viewer can see a stereoscopic image of high quality. Also, as long as the two eyes of the second viewer are in one of the two relatively large areas next to the smaller stereozone, at least one second viewer of the screen likewise has at least a half- image or a monoimage corresponding to one of the image information of the stereoscopic image. Thereby, the second viewer can freely move within a relatively wide margin beside the first viewer without losing the monoimage. Thus, for example, a possibility opens for a first viewer to view one or more other viewers on a screen where three-dimensional image information can be viewed. Advantageously, conventional multiperson screens can be used to implement the employed software used for activation. Compared to other possible methods of reading from image information of two complementary semi-stereoscopic half-images with such a screen, the image content of a stereoscopic image, which can not actually be viewed as stereoscopic, monoimage, which can detect large areas as much as possible. This is due to the fact that the stereozone can be very small, because it only requires space for the eyes of the first viewer.

The term "stereozone" is used herein somewhat differently than the other uses of the term, and is intended to include not only the viewer's viewable stereoimage (but here the second half-image) - Describe the area where one of the stereoscopic half-images is visible, so that if one of the two eyes of this viewer is located in this area, the viewer can see the stereoscopic image.

When the screen is designed as a matrix screen with a beam splitter grid, the method is such that the image point of the first half-image is the image of the second half-image of the stereoscopic image Can be achieved particularly easily by being reproduced in each subpixel of the matrix screen more than the point. An image screen is described that has a subpixel that is distributed over a matrix screen and over an area where the subpixels are not arranged in rows and columns perpendicular to each other Thereby forming another pattern. The subpixel does not need to be specified in another color.

A proposed auto stereoscopic screen capable of reproducing image information in the described advantageous manner is capable of displaying image information of two stereoscopic half-images in at least one possible mode of operation into a subpixel (Subpixel) of a matrix screen as a function of image information of a first stereoscopic half-image and a second stereoscopic half-image designed by a dispensing programming technique Control unit, so that the image points of the first half-image are reproduced respectively in more subpixels than the image points of the second semi-stereoscopic half-image, A stereoscopic half-image is offset laterally and seen in two consecutive regions, whereas a second stereoscopic half-image is seen in two consecutive regions, And is seen in one stereoscopic region smaller than each of these two regions.

As a matrix screen of an auto stereoscopic screen, a liquid crystal screen, i.e. an LCD display, is suitable. For example, an OLED display is used as an alternative. A beam splitter grid may be constructed in a known manner as a slot grid or a strip grid or a cylinder lens grid to perform a desired function. In addition, a stepped grid, a perforated grid, or a spherical lens grid is also possible.

A preferred embodiment of the method is characterized in that in each of a plurality of lines of the matrix screen, each group of adjacent subpixels activated respectively for reproducing one of the image points of the first half- Alternate with subpixels separated therefrom by adjacent subpixels or at least one blanked subpixel or reproduce one of the image points of a second stereoscopic half-image Alternating with a small group of adjacent subpixels that are each activated. Likewise, the control unit of the image screen can be designed to activate at least the matrix screen in the above-mentioned operating mode, so that in each of a plurality of lines of the matrix screen, one of the image points of the first stereoscopic half- Each group of adjacent subpixels reproducing one of them alternates with a subpixel separated therefrom by a directly adjacent subpixel or at least one blanked subpixel, Alternating with a small group of adjacent subpixels each reproducing one of the image points of the second semi-stereoscopic half-image.

Conventional multiperson screens are generally designed to be seen at relatively wide distances (nominal field of view). For the method proposed here so that a first viewer and at least one second viewer can be viewed at a smaller distance more comfortably, a matrix screen, in which the image information of the two half- Two regions in which the first half-image is completely visible and a second half-image in which the stereozone is completely visible are spaced apart on the screen by a nominal viewing distance Has a maximum width in the viewing plane closer to the screen than in the plane and has more than two views in the viewing plane when the screen operates as a multiperson screen. The lateral spacing between the stereozone and at least one of the two regions described above in the viewing plane is such that the average eye spacing, i. E. 65 mm, is sufficient to allow the stereoscopic image to be sensed by the first viewer. . This of course also applies to other embodiments of the method wherein the spacing between the viewing plane and the screen nominally coincides with the viewing distance.

For the same purpose, the control unit of the proposed screen can be designed by corresponding programming to write the image information of the two half-images in the above-mentioned operating mode into a subpixel of a matrix screen spreading in the lateral direction , The two regions in which the first half-image is completely visible and the second half-image in which the stereozone is completely visible, can be used in other operating modes in which the screen forms a multiperson screen , And has a maximum width at a viewing plane closer to the screen than a plane where a plurality of two or more views are visible. In a typical embodiment of such an autostereoscopic screen, the matrix screen is periodically distributed to a number of image channels corresponding to the number of two or more views in each line, which can be activated in the other mode of operation described above, The subpixel of the above-mentioned operating mode has an average spacing between the area center points of adjacent image points of the first half-image respectively formed in a plurality of subpixels, The average spacing between the area center points of adjacent image points of the second half-image, each formed in the subpixel, deviates from an integral multiple of the spacing between adjacent subpixels of the matrix screen .

In order to allow the first viewer to see the stereoscopic image without confusion even while the first viewer is moving within a relatively wide margin, the position of the head of the first viewer and / Can also be detected in the proposed method and the activation of the screen is controlled by a stereozone in which a second stereoscopic half-image is seen and a second half-stereoscopic image located next to the stereozone, the stereoscopic half-image is adjusted or changed as a function of the detected head position or head movement so that the two regions in which the two visible regions are located or tracked, so that the first eye of the viewer is located in one of the two regions described above And the second eye of the viewer is positioned or held in the above-mentioned stereozone. For this purpose, the above-described subpixel group can move finely stepwise or quasi continuously laterally, so that the intensity at which the subpixel located at the edge of the group is activated is reduced, And a subpixel activated at a low intensity at the edge of the previously located opposite of the same group of blanked subpixels or subpixels is activated with a corresponding high intensity, . Movement refers to the movement of the intensity center of a subpixel group and / or the movement of the edges of these groups, respectively. Also, an individual subpixel or image channel of a screen initially assigned to one of the two half-images may be assigned to another half-image.

The above-described spreading in the lateral direction can be done in a corresponding way, and redistributing the various image channels in two half-images is done at each line of the screen quasi continuously from one end of the line to the other end, respectively , A prerequisite is that a subpixel of one line is distributed in periodic order to the image channels corresponding to the various views while the screen is operating in a multiperson screen.

In the advantageous improvement of the method, if the eyes of the second viewer are preferably prevented from leaving one of the two aforementioned regions, the image information of the two stereoscopic half-images is changed and at the same time, the stereozone and the movement of at least one second viewer are detected so that the two areas described above move sideways by eye distance and the activation of the screen changes as a function of the detected movement. For this purpose, the stereozone and the above-mentioned two regions move so that the first eye of the first viewer is in the above-mentioned stereozone and the other eye is in the above-mentioned region, and a first viewer, The first and second eyes are changed in such a manner that the right eye of the first viewer is located in the stereozone when the left eye of the viewer is in the stereozone. Thus, the degree of freedom of movement of at least one second viewer, that is, the area that can freely move without losing a monoimage, can be further increased. Thereby changing the half-image so that when the first half-image is the left half-image and the second half-image is the right half-image, the first half- A stereoscopic half-image is now the right half-image and a second stereoscopic half-image now stands for the left half-image, or vice versa. By this change, the first viewer can not detect the change and still see the correct stereo image, while at least one second viewer actually theoretically allows the second viewer to view the mono image can detect a jump between two half-images that can be viewed as a monoimage, but can not experience this undetectable jump as disturbing.

In order to be able to achieve the precisely described advantage, a preferred embodiment of the screen has at least a device for detecting the head position of the first viewer, and the control unit is designed to activate the matrix screen as a function of the detected head position And a stereoscopic half-image with a first stereoscopic half-image and a second stereoscopic half-image positioned next to the stereozone while the head position is changing. Two areas are located or tracked and the first eye of the viewer is located or maintained in one of the two areas described above while the second eye of the viewer is located in the above described stereozone maintain. This type of device is essentially known with a so-called tracking method and can be generated by one or two video cameras, for example with an image recognition program. In addition, the above-described apparatus may be suitable for detecting the head position of at least one second viewer, and the control unit may activate the matrix screen as a function of the detected head position change of the second viewer And preventing one eye of the second viewer from leaving one of the two areas described above, the image information of the two stereoscopic half-images is changed and at the same time the stereoscopic and stereoscopic images, Both areas move sideways by eye space.

Next, specific examples of the present invention will be described with reference to Figs.
Figure 1 schematically shows a view of an autostereoscopic screen in which image information is displayed to two different viewers.
Fig. 2 schematically shows a method for reproducing image information of two different stereoscopic half-images in the screen of Fig. 1 so that one of the viewers described above can see a stereoscopic image.
Figure 3 is a cross-sectional view of the pixel plane of the screen of Figure 1;
Fig. 4 shows the same screen corresponding to Fig. 1, which is activated in a modified manner after one of the two viewers has moved.
Fig. 5 correspondingly shows the different screens shown within the extent that this viewer can move freely.
Fig. 6 correspondingly shows the same screen in a different activated state capable of detecting image information displayed without error at larger distances.
Figure 7 illustrates how the lateral movement of the first viewer can be compensated for by a change in the writing-in of the image information sheet, with reference to the bar chart.

Figure 1 shows an autostereoscopic screen in which the screen comprises a matrix screen 10 with a number of subpixels and a plurality of subpixels arranged in front of the matrix screen 10 and coming out of the subpixels of the matrix screen 10. [ And a beam splitter grid 11 suitable for guiding light to various areas of a plurality of offset viewing zones 12. This type of beam splitter grid 11 may also be referred to as a barrier grid. The matrix screen 10 is a liquid crystal screen, the cross-section of a pixel plane is shown in Fig. 3, the subpixels 13 of the screen are distributed over a plurality of lines, and in each line (periodic R, G, and B) red, green, and blue subpixels 13 alternately. The beam splitter grid 11 is designed as a slot grid or cylinder lens grid and the slot or cylinder lens of the beam splitter grid 11 is inclined at about 20 degrees to the vertical line. Finally, the screen is designed by a programming technique to activate the matrix screen 10 and to activate the sub-pixels 13 of the matrix screen 10 as a function of the image information of the various stereoscopic half-images And a control unit 14 that can control the operation of the apparatus.

In the operating mode, which is not the focus of the current interest, the image information of nine different stereoscopic half-images is reproduced in the subpixel 13 of the matrix screen 10 in a periodic sequence of screens, One of the stereoscopic half-images can be operated as a multiperson screen at a viewing zone 12 offset from each other. In a plane 15 where the viewing zone 12 has a maximum width, if nine stereoscopic half-images are appropriately selected in a manner complementary to each other, stereoimage) can be auto stereoscopically detected.

In a method in which a first stereoscopic half-image and a second stereoscopic half-image, which can be recognized simultaneously and together generate a stereimage, are reproduced on a screen, Another method of displaying image information in a stereoscopic half-image is described herein, and the control unit 14 determines whether the image point of the first stereoscopic half-image is an image point of the second stereoscopic half- Pixels are reproduced in more subpixels 13 and indeed the first half-image is laterally offset and seen in each successive two regions 16, and the second half- is designed by a programming technique such that a stereoscopic half-image is located between the two regions 16 described above and is visible in a stereozone 17 that is smaller than each of these two regions 16. Thereby, the control unit 14 can be designed so that the screen can be operated in a first operating mode in the manner just described, while in a second operating mode in a manner previously described as a multiperson screen do.

One of the two regions 16 that can be detected in Figure 1 relates to an adjacent lens region in which the same image point as in the other region 16 is seen and which can be seen through an adjacent slot or lens respectively of the beam splitter grid 11 . There may also be other regions where the first half-image can be seen, such as in the offset region 16, and other additional regions beyond the region 16, i.e., the three-dimensional region 17, There may be an adjacent lens region. The construction of two regions and one stereozone located therebetween, selected herein, does not exclude the presence of additional other regions of corresponding properties.

1 shows a first viewer 18 and a second viewer 19. The first viewer 18 is located in one of the regions 16 and the left eye of the viewer 18 is located in a three- 17 of the first viewer 18. The first viewer 18 may be located at a position where the first viewer 18 is located. As a result that the first half-image which can be detected in the region 16 is selected as the right half-image and the second half-image which can be detected in the three-dimensional region 17 is selected as the left half-image, 18 can auto stereoscopically sense a stereo image composed of two stereoscopic half-images. Because the left and right eyes of the second viewer 19 are both located in one of the regions 16, the second viewer 19 can not see the stereoimage, but as a two-dimensional image, In the case of an image, it is possible to detect image information of one of the two half-images. As a result of the accurate and large selection of the three-dimensional area 17 so that the first viewer 18 can detect the left half-image with the left eye, at least one monoimage with good quality can be detected together 16 include as large a surface area as possible.

2 schematically illustrates how the two eyes 20 of the first viewer 18 are located in one of the two regions 16 or in the three-dimensional region 17. do. Also in Figures 1 and 3, the nine image channels 1-9 of the screen are characterized and while the screen operates as a multiperson screen, the image channels are displayed in nine different stereoscopic half- image or view. In FIG. 3, it can be seen that these nine image channels are formed by the other subpixels 13 of the matrix screen 10. Thereby, each image point spans three lines, and the same number of red, green, and blue subpixels 13 can be used to display each image point. Figures 1-3 further illustrate how the subpixel 13 is activated in the operating mode described herein to distribute the two half-images to the region 16 and to the solid region 17. For this purpose, in each line of the matrix screen 10, a group 21 of adjacent subpixels 13, each reproducing one of the image points of the first semi-stereoscopic image, is divided into at least one blanked sub- Alternating with a small group 23 of adjacent subpixels each reproducing one of the directly adjacent subpixel or the image point of the second semi-stereoscopic image separated by the pixel 22 therefrom. A group 21 that spans three lines of the matrix screen 10 as each group 23 comprises six subpixels 13 in each of the cross-sections shown in each line, while a small group 23 contains Only two subpixels 13 are present in each line. The image channels 1 to 4 and the image channels 8 and 9 are filled by the image information of the first stereoscopic half-image while the image channels 5 are empty and the image channels 6 , 7 are generated here so that they are filled by the image information of the second stereoscopic half-image.

The screen is activated in only one partial area in the described manner, whereas outside this partial area only the image information of the mono image is written, and each image point can fill nine subpixels per line. The first viewer can then detect only the stereoscopic image in the partial area, and, in contrast, only the monoimage in this area.

The described screen also has an apparatus 24 for detecting the head position of the first viewer 18 and the head position of the second viewer 19, schematically shown only in Fig. For example, the device 24 may be created with two video cameras with corresponding image recognition programs. If the movement of the second viewer 19 is now detected and the eyes of the second viewer 19 are prevented from leaving one of the two regions 16, then the two stereoscopic half- the image information of the matrix screen 10 is changed and at the same time the activation of the matrix screen 10 such that the three-dimensional region 17 and the two regions 16 are shifted sideways by an eye gap of about 65 mm, 14). This is illustrated in FIG. 4, which corresponds to FIG. 1, but in FIG. 4, the activation of the matrix screen 10 remains unchanged, and the second viewer is no longer in a stereoscopic half-image The head position of the second viewer 19 is changed in comparison with the situation of FIG. 1 so that the two-dimensional image provided by the second viewer 19 can not be completely viewed. Now that the first and second stereoscopic half-images have changed, by changing the activation of the matrix screen 10 in the manner described, the monoimage associated with the left half- The two regions 16 are moved such that the two eyes of the second viewer 19 are still located in one of the two regions 16 so that the viewer can always view. The region 16 and the three-dimensional region 17 are accurately moved so that one eye of the first viewer 18 is located in the three-dimensional region 17 and another eye is located in one of the regions 16. [ 1, the left eye of the first viewer 18 is located in the three-dimensional area 17 and the right eye of the first viewer 18 is located in one of the areas 16, but now The right eye of the first viewer 18 is located in the three-dimensional region 17 and the left eye of the first viewer 18 is located in one of the regions 16. However, by replacing the two half-images, the first viewer 18 still sees the same correctly reproduced stereoimage. Image channels 1 to 4, 8 and 9 now reproduce the first half-image associated with the left half-image, and the image channel 5 still reproduces the first half- And the image channels 6 and 7 are now distinguished from one another by changing the activation of the matrix screen by indicating the reproduction of the second half-image associated with the right half-image.

5, where the same features are provided with the same reference numerals in different figures, there are shown two areas 16 'whose edges are indicated by dashed lines, and because of the measurements described in this area, the activation of the matrix screen 10 is described When the second viewer 19 is moved so as to change it in such a manner that it can jump in a way that can hardly be perceived between the right and left half-images, it does not lose the monoimage in the view The second viewer 19 can freely move to a relatively wide limit.

In the display of two stereoscopic half-images on the screen as described above , is used in the matrix screen 10, spreading laterally by the control unit 14, and the two areas 16 and the three- Image information of the two half-images is projected onto the sub-pixel (s) so that they have a maximum width at a viewing plane 25 closer to the screen than a plane 15 spaced from the screen by nominal viewing distance, 13) and stereoscopic images can be sensed when the screen is operated in a conventional manner with a multiperson screen. The screen is operated such that the subpixels 13 are periodically distributed to the image channel 9 at each line and each of these image channels 9 corresponds to exactly one of the nine different views and is displayed as a multiperson screen Unlike the manner in which it is activated, the average spacing between the area center points of adjacent image points of the first half-image formed in each of a number of subpixels (corresponding to group 21 of FIG. 3) The average spacing between the area center points of the adjacent image points of the second half-image which are likewise formed in each of the plurality of subpixels 13 (corresponding to group 3 to group 23) Images are split slightly at an integer multiple of the spacing of the sub-pixels 13, in the operating mode described herein. Where the two regions 16 and the three-dimensional region 17 are located is shown in Fig. 6 unless the image information is spread in the described manner. Both the region 16 and the steric region 17 now have a maximum width in the plane 15 in which the viewing zone 12 has the maximum width and also the screen can be moved in a conventional manner to a multiperson screen If you are working, you can see various views. Of course, a described method for displaying display image information of two stereoscopic half-images is to use a stereoscopic image formed by one of the stereoscopic half-images (as shown in Fig. 6 stereoimage, or monoimage, particularly not in the plane 15 viewable. However, in this case, at least in the first viewer 18, due to the corresponding activation of the matrix screen 10 or the corresponding distribution of the image information of the subpixel 13, so that the stereoscopic image can be sensed, It is to be considered that the lateral spacing between at least one of the three-dimensional region 17 and the two regions 16 is not more than the average eye space, preferably not more than 65 mm. In the exemplary embodiment of the screen, in the plane 15 corresponding to the width of the field of view 12, the width k of the image channel shown in Fig. 6 is as large as the average eye spacing of about 65 mm, It may be much smaller. Conversely, if K matches the average eye spacing in order of magnitude, the activation for the view in the plane 15 is, for example, the case where the illustrated image channel 5 is not empty and the two regions 16 are in the three- Image information of the first half-image so as to cover the first half-image. Compared to the situation of Figures 1 and 4, it also shows how the tracking of the first viewer 18 can be carried out in the lateral direction as well as at the viewing distance.

The activation of the matrix screen 10 allows the device 24 to position and track the stereoscopic region 17 and two regions 16 located next to the stereoscopic region 17 while the head is moving 19 or the head position of the first viewer 18 that detects the head position of the viewer 18 or the head position of the viewer 18 And the other one of the eyes 20 of the viewer 18 is located in one of the regions 16 and is always maintained while the head position is changed. This means that when the intensity at which each subpixel 13 located at the edge of one of the group 21 or the group 23 is activated decreases the group 21 of subpixels 13 forming the image points of the two half- ) And the group 23 are finely stepped or semi-continuously shifted sideways, whereas in the previously empty subpixel 13 or the subpixel activated by the reduced intensity are correspondingly equal in intensity The opposite edges of group 21 or group 23 are caused by activation.

7, how the intensity is redistributed between the subpixels 13 of the groups 21 and 23 and the respective subpixels 13 will be described. The five images arranged in the left half of Figure 7 indicate how groups 21 and 23 and the resulting image point can be shifted to the left by an amount d corresponding to the spacing of two adjacent subpixels 13 , Whereas in a corresponding manner, in the right half of Figure 7, the group 21, 23 shows that it can actually be shifted to the right by four steps, respectively, by the corresponding amount d. The intensity or brightness at which the subpixel 13 described in one line of the matrix screen 10 is activated is displayed as a bar height in the bar charts, respectively. The intensity or brightness values described above are multiplied by a color value and a brightness value generated in the image information for each image point reproduced by the group 21 or the group 23. In a completely analogous manner, the above-mentioned spread of image information is also achieved in such a way that, for subpixels 13 at each line from one end of the line to the other end of the line in the lateral direction, The pixels 21 can be grouped in a lateral direction receiving the pixels 13 in a similarly finely staggered manner and the group 21 or group 23 and subsequently the adjacent group 21 or group 23 are moved laterally .

By way of a description of what can be done on the screen in the embodiment, it is possible for a relatively large number of viewers to see the image unobstructed, and at least one viewer can see a stereoscopic image. In fact, other viewers only see mono images, but avoid changing the so-called pseudo stereozone in which stereoscopic half-images complementary to each other are displayed, at least in unimpeded . The viewer can be tracked in a precisely staged manner by the interlocking pattern described with respect to FIG. The desired viewing spacing, which is generally less than the nominal viewing distance between the plane 15 and the screen, can be adjusted and the left and right image channels can be moved and maintained in the opposite direction. In all cases, the same image content takes up as many contiguous monochannels as possible.

As a result, a wide mono zone (area 16), in which a person standing on the periphery can perceive an unimpeded image, to the right and left sides of the tracking area capable of sensing a stereo image, . The continuous viewing area created by the area around the stereoscopic area 17 and by the side monozone is a conventional operation of the screen with a multiperson screen, (The above-described area generated by the view area 12 in Fig. 1). The result for the central viewer 18, which senses stereoimage due to the trackability of the stereo region 17 and the region 16, is therefore a comfortable motion region. So that the tracking is not visible within the region 16 (i.e. within the monozones) and therefore does not disrupt the rest of the viewer (especially the viewer 19). Conversely, when the activation of the screen is changed due to the movement of the second viewer 19, the first viewer 18 can not notice the confusion.

The present invention can be used, for example, with endoscopic OP techniques, remote-controlled manipulators (e.g., gripper), stereoscopic education and training systems, kiosk systems, And can be applied to completely different areas such as a 3D TV control monitor or a multimedia 3D monitor in a game.

Claims (15)

A plurality of views formed by a matrix screen 10 having a beam splitter grid 11 and viewed in at least one of a plurality of horizontally offset viewing zones 12, CLAIMS What is claimed is: 1. A method of displaying image information on an autostereoscopic screen suitable for: displaying a first stereoscopic half-image and a second semi-stereoscopic image, a stereoscopic half-image is reproduced on the screen,
Wherein the first stereoscopic half-image is laterally offset and is seen in two consecutive regions (16), and wherein the second stereoscopic half-image is between two regions (16) Image is reproduced on the screen so that it is visible in the three-dimensional area (17), which is located in a smaller area (16) than the respective two areas (16)
Characterized in that the image points of the first half-image are reproduced in a number of sub-pixels (13) of the screen, respectively, than the image points of the second half-image (stereoscopic half-image) Way. delete The method according to claim 1,
In each of a plurality of lines of the matrix screen 10 a group of each adjacent subpixel 13 each activated to reproduce one of the image points of the first stereoscopic half- 21 alternate with subpixels 13 that are separated therefrom by directly adjacent subpixels 13 or by at least one empty subpixel 22 or alternately with a second subpixel 13 of a second stereoscopic half- Pixels (23) of each adjacent subpixel (13), each activated to reproduce one of the image points. The method according to claim 1,
Wherein the second semi-stereoscopic half-image covers only a partial area of the matrix screen, and wherein an image point of the first stereoscopic half-image other than the partial area is located in the partial area Pixels are formed by more sub-pixels than in the sub-pixels. The method according to claim 1,
Image information of the two semi-images is written to the subpixel 13 of the matrix screen 10 and the two regions 16 in which the first stereoscopic half- 2 The stereoscopic region 17, in which the stereoscopic half-image is completely visible, is more visible on the screen than the plane 15 in which a plurality of two or more views are visible when the screen is operated as a multiperson screen. Characterized in that it is laterally expanded so as to have a maximum width at a closer viewing plane (25). The method according to claim 1,
The head position or eye position of the first viewer 18 is detected and the activation of the screen is adjusted or changed as a function of the detected head position or eye position so that the second stereoscopic half- Area 16 adjacent to the region 17 and the stereoscopic region 17 and in which the first stereoscopic half-image is visible is located or tracked so that the first portion of the first viewer 18 Characterized in that the eye (20) is positioned or held in one of the two regions (16) and the second eye (20) of the first viewer (18) is positioned or held in the stereoscopic region (17). 6. The method of claim 5,
The head position or eye position or head movement or eye movement of at least one second viewer 19 is detected and the activation of the screen is changed as a function of the detected head position or eye position or head movement or eye movement, 2 viewer 19 is prevented from leaving one of the two areas 16, the image information of the first and second stereoscopic half-images is changed, and at the same time, the stereoscopic areas 17 ) And the two regions (16) are shifted laterally by an eye gap. A matrix screen 10 having multiple subpixels 13 suitable for simultaneously displaying two or more multiple views respectively visible in at least one of a plurality of offset viewing zones 12, A beam splitter grid 11 suitable for guiding light from the subpixel 13 to at least one of the viewing zones 12 and a second stereoscopic half- 13. An autostereoscopic screen comprising a control unit (14) for activating said subpixel (13) of said matrix screen (10) as a function of an image point of a stereoscopic half-image,
The control unit 14 is designed by a programming technique to distribute the image information of the first and second stereoscopic half-images to the subpixel 13 in at least one possible mode of operation An image point of the first half-image is reproduced in more subpixels (13) than the image point of the second semi-stereoscopic half-image, so that the first half- stereoscopic half-image is laterally shifted and is seen in two consecutive regions 16, and the second stereoscopic half-image is located between the two regions 16, 16. The stereoscopic screen as claimed in claim 1, 9. The method of claim 8,
The control unit 14 is configured to control the number of adjacent subpixels 13 that reproduce one of the image points of the first stereoscopic half-image, respectively, in each of a plurality of lines of the matrix screen 10 Each group 21 alternates with a subpixel which is separated therefrom by a directly adjacent subpixel 13 or at least one empty subpixel 22 or an image of a second stereoscopic half- Is designed to activate the matrix screen (10) in at least the above-described operating mode so that it alternates with a small group (23) of adjacent subpixels (13) each reproducing one of the points. 9. The method of claim 8,
Characterized in that the matrix screen (10) is a liquid crystal screen. 9. The method of claim 8,
The beam splitter grid 11 may be a slot grid or a stepped grid or a perforated grid or a cylinder lens grid or a spherical lens grid Features an autostereoscopic screen. 9. The method of claim 8,
The control unit writes the image points of the two half-images in the above-mentioned operating mode to the sub-pixel (13) of the matrix screen (10), and the first half- In another mode of operation in which the two regions 16 and the second stereoscopic half-image are completely visible, the screen forms a multiperson screen, a plurality of two or more Is designed to have a maximum width at a viewing plane (25) closer to the screen than a plane (15) in which the view is visible. 13. The method of claim 12,
The subpixels 13 are periodically distributed on each line to a plurality of image channels corresponding to a plurality of two or more views and can be activated in the other operation mode described above, The average interval between the area center points of adjacent image points of the first half image formed in the plurality of subpixels 13 by activating the matrix screen 10 to be distributed to the two half- Likewise, the average spacing between the area center points of adjacent image points of the second half-image formed in each of the plurality of subpixels 13 deviates from an integer multiple of the spacing between adjacent subpixels 13, Wherein the display screen is a display screen. 9. The method of claim 8,
Further comprising an apparatus (24) for detecting a head position of at least one first viewer (18), the control unit (14) activating the matrix screen (10) as a function of detected head position or head movement A stereoscopic region 17 which is designed such that a second stereoscopic half-image is visible and a second region which is located next to the stereoscopic region 17 and in which the first stereoscopic half- The first viewer 20 of the first viewer 18 is positioned or maintained in one of the two areas 16 while the second viewer 16 is positioned or tracked while the head position is changing, And the second eye (20) is positioned or held in the stereoscopic region (17). 15. The method of claim 14,
The device 24 detects the head position of at least one second viewer 19 and the control unit 14 controls the position of the matrix screen 20 as a function of the detected head position change of the second viewer 19 10 so that the eyes of the second viewer 19 do not leave one of the two areas 16, the image information of the two stereoscopic half-images can be changed and simultaneously And the three-dimensional area (17) and the two areas (16) are moved laterally by an eye space.

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