WO2008122838A1 - Qualité d'image améliorée dans des dispositifs d'affichage multi-vue stéréoscopiques - Google Patents

Qualité d'image améliorée dans des dispositifs d'affichage multi-vue stéréoscopiques Download PDF

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Publication number
WO2008122838A1
WO2008122838A1 PCT/IB2007/051208 IB2007051208W WO2008122838A1 WO 2008122838 A1 WO2008122838 A1 WO 2008122838A1 IB 2007051208 W IB2007051208 W IB 2007051208W WO 2008122838 A1 WO2008122838 A1 WO 2008122838A1
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Prior art keywords
image data
sets
image
multiview display
stemming
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PCT/IB2007/051208
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English (en)
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Toni JÄRVENPÄÄ
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Nokia Corporation
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Priority to PCT/IB2007/051208 priority Critical patent/WO2008122838A1/fr
Publication of WO2008122838A1 publication Critical patent/WO2008122838A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30—Image reproducers
    • H04N13/349—Multi-view displays for displaying three or more geometrical viewpoints without viewer tracking
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/10—Processing, recording or transmission of stereoscopic or multi-view image signals
    • H04N13/106—Processing image signals
    • H04N13/122—Improving the 3D impression of stereoscopic images by modifying image signal contents, e.g. by filtering or adding monoscopic depth cues
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/10—Processing, recording or transmission of stereoscopic or multi-view image signals
    • H04N13/106—Processing image signals
    • H04N13/172—Processing image signals image signals comprising non-image signal components, e.g. headers or format information
    • H04N13/183—On-screen display [OSD] information, e.g. subtitles or menus

Definitions

  • This invention relates to a method, a computer program, a computer program product, a device and a system for providing sets of image data of a three-dimensional image for a multiview display.
  • the horizontal distance or disparity in an object between the left- and right-eye images defines the amount of stereo effect in the image.
  • the most common 3D displays have two views (a left-eye view and a right-eye view) , and the user must be located exactly in front of the display to see a comfortable 3D image. That is, the moving freedom in front of the display is very limited.
  • One solution for the limited viewing freedom is to have more than two views in the display.
  • the views are spread more widely and the transition from one view to another is typically smooth.
  • the resulting motion parallax i.e. the possibility to peak behind objects makes the 3D experience more natural .
  • each view In these spatially interlaced 3D displays, generally the resolution for each view is reduced compared to the resolution of a 2D display that uses a base panel (pixel matrix) of the same size.
  • the resolution for each view In a 2-view 3D display, the resolution for each view is still half of the base panel resolution, which is not critical yet especially with high-resolution displays.
  • N views e.g. 9
  • each view has only 1/N (e.g. 1/9) of the base panel resolution.
  • the perceived resolution might be slightly higher than this because typically the adjacent views are partly overlapping. Still, the resolution is clearly lower than in 2-view displays.
  • a method for providing image data related to a three-dimensional image for a multiview display wherein the image data comprises sets of image data, wherein the multiview display comprises a plurality of sets of one or more viewing sectors, and wherein the multiview display is configured to display each set of image data of the sets of image data in a different set of viewing sectors of the plurality of sets of viewing sectors to create a stereoscopic effect.
  • the method comprises including, in at least two sets of image data of the sets of image data, image data stemming from the same view of at least a part of the three-dimensional image, so that the number of views displayed for the at least a part of the three-dimensional image is smaller than the number of sets of viewing sectors of the multiview display.
  • a computer program for providing image data related to a three-dimensional image for a multiview display wherein the image data comprises sets of image data, wherein the multiview display comprises a plurality of sets of one or more viewing sectors, and wherein the multiview display is configured to display each set of image data of the sets of image data in a different set of viewing sectors of the plurality of sets of viewing sectors to create a stereoscopic effect.
  • the computer program comprises instructions operable to cause a processor to include, in at least two sets of image data of the sets of image data, image data stemming from the same view of at least a part of the three-dimensional image, so that the number of views displayed for the at least a part of the three-dimensional image is smaller than the number of sets of viewing sectors of the multiview display.
  • the computer program may for instance be stored on a computer-readable medium.
  • the computer-readable medium may for instance be embodied as an electric, magnetic, electro-magnetic or optic storage medium, and may either be a removable medium or a medium that is fixedly installed in a device.
  • a device for providing image data related to a three-dimensional image for a multiview display wherein the image data comprises sets of image data, wherein the multiview display comprises a plurality of sets of one or more viewing sectors, and wherein the multiview display is configured to display each set of image data of the sets of image data in a different set of viewing sectors of the plurality of sets of viewing sectors to create a stereoscopic effect.
  • the device comprises a processing unit configured to include, in at least two sets of image data of the sets of image data, image data stemming from the same view of at least a part of the three-dimensional image, so that the number of views displayed for the at least a part of the three-dimensional image is smaller than the number of sets of viewing sectors of the multiview display.
  • the device may for instance be embodied as a module.
  • the device may also comprise the multiview display.
  • the device may for instance be a mobile communication device or a part thereof, such as for instance a mobile phone, a personal digital assistant or a portable computer. Equally well, the device may be a computer.
  • the device may for instance be a server in a communication network that produces image data to be transmitted to clients (e.g.
  • a system comprising a first device and a second device, wherein the first device is configured to provide image data related to a three-dimensional image for a multiview display, wherein the image data comprises sets of image data, wherein the multiview display comprises a plurality of sets of one or more viewing sectors, and wherein the multiview display is configured to display each set of image data of the sets of image data in a different set of viewing sectors of the plurality of sets of viewing sectors to create a stereoscopic effect.
  • the first device comprises a processing unit configured to include, in at least two sets of image data of the sets of image data, image data stemming from the same view of at least a part of the three-dimensional image, so that the number of views displayed for the at least a part of the three-dimensional image is smaller than the number of sets of viewing sectors of the multiview display, and an interface configured to transmit the sets of image data.
  • the second device comprises an interface configured to receive the sets of image data, and the multiview display for displaying the sets of image data.
  • the first and second devices may for instance be components of a wired and/or wireless network, e.g. a server, or a part thereof, and a client or a part thereof.
  • image data related to a 3D image is provided for a multiview display.
  • the providing of said image data may for instance comprise producing said image data and/or processing of raw image data.
  • Said producing of said image data may for instance be performed by a 3D engine that uses virtual cameras looking at a virtual scene or object from different viewpoints.
  • Said processing of raw image data may for instance comprise combining raw image data obtained from one or more cameras picturing an object from one or more different viewpoints.
  • the image data may be in any format that allows the image data to be displayed on a multiview display.
  • the multiview display is configured to display each set of image data in a different set of viewing sectors to create a stereoscopic effect.
  • the sets of image data may be displayed in the different sets of viewing sectors completely or partially concurrently, or in a temporally interlaced manner.
  • each of the sets of image data may for instance be rendered spatially interlaced, i.e. by a specific plurality of pixels of a base panel (e.g. a Liquid Crystal Display (LCD) matrix) of the multiview display, and the specific plurality of pixels may be associated with optical means that accordingly block or bend the light from the specific plurality of pixels so that the image data rendered by the specific plurality of pixels is only displayed in a specific set of one or more viewing sectors of the multiview display.
  • a base panel e.g. a Liquid Crystal Display (LCD) matrix
  • the sets of image data stem from different views of the 3D image (for instance a left-eye view and a right-eye view)
  • providing the image data comprising the sets of image data to the multiview display causes the different views of the 3D image to be respectively displayed in different sets of viewing sectors of the multiview display, and thus creates a stereoscopic effect.
  • each of the sets of image data may for instance be rendered by all pixels of the base panel (i.e. with full resolution), and the multiview display may be configured in a way to display the sets of image data in a temporally interlaced manner, wherein each set of image data is displayed in a different set of viewing sectors.
  • the multiview display may for instance first display a first set of image data in a first set of viewing sectors, and then may display the second set of image data in a second set of viewing sectors.
  • the perception inertia of a viewer's eye will cause the sets of image data to be perceived in a stereoscopic way.
  • Changing the set of viewing sectors in which the respective set of image data is displayed may for instance be achieved by a bi-directional backlight structure, which is configured to direct light into two or more distinct directions (corresponding to viewing sectors) and is synchronized with the frequency of the change of the sets of image data displayed by the base panel.
  • a bi-directional backlight structure which is configured to direct light into two or more distinct directions (corresponding to viewing sectors) and is synchronized with the frequency of the change of the sets of image data displayed by the base panel.
  • other optical and/or mechanical means that allow to display the sets of image data in different sets of viewing sectors in temporally interlaced manner may be applied.
  • the multiview display may also be configured display the sets of image data in the sets of viewing sectors in both a temporally and spatially interlaced way. For instance, in a first time slot, two sets of image data may be displayed spatially interlaced, i.e. by two different sets of pixels of the base panel that cooperate with one or more lenticular lenses to display the two sets of image data in two different sets of viewing sectors, and in a second time slot, two further sets of image data may be displayed spatially interlaced, so that, when integrating both time slots, four sets of image data are displayed in four different sets of viewing sectors (e.g. four different viewing sectors).
  • image data stemming from the same view of at least a part of the 3D image is included. This including may for instance be performed during or after a producing of said image data. Equally well, this including may for instance be performed during or after processing of raw image data.
  • the complexity of providing the image data for the multiview display may be significantly reduced.
  • the sets of image data may be provided in a way that in the N sets of image data that are to be displayed by the multiview display, image data stemming from respective N different views of the background of the 3D image is included, i.e. image data stemming from a first view is included in a first set of image data, image data stemming from a second view is included in a second set of image data, and so forth.
  • image data stemming from the same view of the foreground object is included into at least two of the sets of image data. For instance, only image data stemming from a left-eye view of the foreground object may be included into the first half of the sets of image data, and image data stemming from a right-eye view of the foreground object may be included into the second half of the sets of image data.
  • This may slightly reduce the motion parallax (depending on the content) and/or the viewing freedom (depending on the 3D structure of the display) , but increases its sharpness. Furthermore, all sets of viewing sectors of the multiview display are still used.
  • image data stemming from the same view of only a part of the 3D image may be included into at least two sets of image data. Then, in at least two sets of viewing sectors of the multiview display, the same view of the 3D image is displayed.
  • the present invention may for instance be applied to create 3D content for a User Interface (UI), for 3D games, for movie subtitles, but may equally well be applied in the context of natural images (for instance with post processing) .
  • UI User Interface
  • 3D games for 3D games
  • movie subtitles for movie subtitles
  • the sets of image data form groups, and in all sets of image data forming a group, the image data stemming from the same view of the at least a part of the three-dimensional image is included.
  • the image data stemming from the same view of the at least a part of the 3D image may for instance be image data stemming from a left-eye or right-eye view of the entire 3D image or a part of the 3D image.
  • the sets of image data forming a group are displayed in adjacent viewing sectors, when the sets of image data are displayed by the multiview display.
  • the sets of image data forming a first group may for instance be displayed by the first viewing sectors in each set of viewing sectors of the multiview display, and the sets of image data forming a second group may for instance be displayed by the last viewing sectors in each set of viewing sectors of the multiview display.
  • the sets of image data only form two groups.
  • the two groups may for instance be related to a left-eye view and a right-eye view of the 3D image or of a part of the 3D image, respectively.
  • the image data stemming from the same view of the at least a part of the three-dimensional image is included in at least three sets of image data of the sets of image data.
  • the sets of image data form a first group and a second group, wherein, when the sets of image data are displayed by the multiview display, the sets of image data forming the first group are displayed in adjacent viewing sectors, and the sets of image data forming the second group are displayed in adjacent viewing vectors, wherein in all sets of image data forming the first group, image data stemming from a left-eye view of the at least a part of the three-dimensional image is included, and wherein in all sets of image data forming the second group, image data stemming from a right-eye view of the at least a part of the three-dimensional image is included.
  • the image data included in the at least two sets of image data and stemming from the same view of the at least a part of the three-dimensional image is the same for each of the at least two sets of image data. This may contribute to a reduced computational complexity.
  • the image data included in the at least two sets of image data and stemming from the same view of the at least a part of the three-dimensional image is different for each of the at least two sets of image data.
  • This may contribute to an improved perceived resolution of the 3D image or of parts thereof.
  • This may for instance be of advantage when the sets of image data are displayed in the different sets of viewing sectors at least partially by spatial interlacing, because each spatially interlaced set of image data may then only use a portion of the resolution of the base panel.
  • the image data included in the at least two sets of image data and stemming from the same view of the at least a part of the three-dimensional image differs for each of the at least two sets of image data by the spatial sampling grid applied when sampling the same view of the at least a part of the three-dimensional image.
  • the view of the at least a part of the 3D image may be sampled by a rectangular sampling grid with M pixels, and for each of the at least two sets of image data stemming from this view of the 3D image, only a subset of pixels from the M pixels (corresponding to a thinned-out sampling grid) is used as the image data to be included.
  • M/3 pixels may be used as image data to be included.
  • This may for instance be achieved by using, as image data for a first of the three sets of image data that are to be displayed in spatially interlaced manner by the same base panel, a sampling grid which samples the first, the fourth, seventh and so forth pixels, by using, for a second of the three sets of image data, a sampling grid which samples the second, the fifth, eighth and so forth pixels, and by using for a third of the three sets of image data, a sampling grid which samples the third, the sixth, ninth and so forth pixels.
  • the determining if at least a part of the three-dimensional image requires increased sharpness may for instance be based on information on the composition of the 3D image, for instance if there is text comprised in the 3D image. Furthermore, the determining may be based on an analysis of the 3D image.
  • the three-dimensional image comprises at least one of a natural image and an artificial element.
  • the natural image may for instance be used as a background.
  • the artificial element may for instance be text or icons, to name but a few possibilities .
  • Fig. Ia a schematic block diagram of a device according to an exemplary embodiment of the present invention.
  • Fig. Ib a schematic block diagram of a system according to an exemplary embodiment of the present invention.
  • Fig. 2 a schematic illustration of a generation of viewing sectors in a multiview display
  • Fig. 3 a diagram illustrating the viewing sectors generated by a multiview display
  • Fig. 4 a flowchart of an exemplary method according to the present invention.
  • Fig. 5 an exemplary illustration of five views of a 3D image .
  • Fig. Ia is a schematic block diagram of a device 1 according to an exemplary embodiment of the present invention.
  • Device 1 comprises a processor 10, a processor memory 11 and a multiview display 12.
  • Multiview display 12 is an autostereoscopic direct-view display that is configured to display image data relating to a 3D image in 3D.
  • the display panel of the multiview display 12 includes a spatially interlaced structure that blocks or bends the light from only certain pixels to each eye, as will be explained in more detail with reference to Fig. 2 below.
  • Device 1 may for instance be an electronic device such as for instance a computer, a mobile phone or a personal digital assistant.
  • 3D content may be provided and displayed, for instance in the context of a 3D User Interface (UI) .
  • UI 3D User Interface
  • Fig. Ib is a schematic block diagram of a system 2 according to an exemplary embodiment of the present invention.
  • System 2 comprises a first device 3 and a second device 4.
  • Device 3 comprises a processor 30, a processor memory 31 and an interface 32.
  • Processor 30 is configured to provide image data for displaying on a multiview display. The providing of this image data may for instance comprise producing the image data and/or processing of raw image data to obtain the image data for the multiview display. To provide the image data, the steps of flowchart 400 of Fig. 4 may be executed by processor 30, which steps may for instance be implemented in software code that is stored in processor memory 31 and can be accessed by processor 30.
  • the image data provided by processor 30 is transmitted via an interface 32 to device 4. Therein, the image data provided by processor 30 may for instance also be at least partially produced by processor 30, or may at least partially be received by processor 30 and then be processed accordingly.
  • Device 4 comprises an interface 42 for receiving image data from device 3, a processor 40 for controlling an overall operation of device 4, a processor memory for storing software code that is executed by processor 40, and a multiview display 43. Image data received from device 3 may then, under the control of processor 40, be forwarded to multiview display 43 for displaying.
  • the image data provided by processor 10 of Fig. Ia and/or the processor 30 of Fig. Ib may be created or produced in many ways for a display with N views.
  • Image data could also be created by a 3D engine that includes many virtual cameras looking at a scene or object from different viewpoints (for instance with fixed or adaptive camera separation) .
  • the 3D engine could create a 2D image plus a depth map.
  • Image data could also be created as layered data, which is a combination of the previous cases and flat objects located in the image with certain disparity (separation) between different views. Layered data may for instance be used for UI applications.
  • Image data created by a 3D engine or layered data may for instance be at least partially obtained by processor 10 or processor 30 and then be further processed, or may at least partially be created by processor 10 or processor 30 itself.
  • Fig. 2 is a schematic illustration of a generation of viewing sectors 7 and 8 in a multiview display 5, such as for instance the multiview displays 12 and 43 of Figs. Ia and Ib, respectively.
  • LCD pixel matrix 51 renders image data that is fed to device 5.
  • Lenticular lens 52 bends the light emitted by the pixels of the LCD pixel matrix 51 and thus allows to display specific sets of image data mainly in specific sets of viewing sectors. For instance, consider the pixels 510 and 511 in LCD pixel matrix 51. When rendering image data by LCD pixel matrix 51, pixels 510 and 511 can be understood to render a set of image data comprised in the overall image data rendered by LCD pixel matrix 51. Due to the presence of the lenticular lens 52, this set of image data is displayed in a specific set of one or more viewing sectors. In Fig. 2, only one viewing sector is represented by arrow 7.
  • the set of image data rendered by pixels 510 and 511 is not only directed to one viewing sector 7, but to a set of viewing sectors, wherein the center angles of these viewing vectors may for instance be equidistant.
  • An example of such a set of viewing sectors will be discussed with reference to Fig. 3 below.
  • a viewer 6 with left eye 61 and right eye 62 is shown. Since the left eye 61 of viewer 6 is positioned in viewing sector 7, left eye 61 perceives the set of image data that is rendered by pixels 510 and 511 of LDC pixel matrix 51, whereas right eye 62 perceives the set of image data that is rendered by pixels 512 and 513.
  • the two sets of image data displayed towards the left eye 61 and right eye 62 stem from different views of a 3D image (for instance have been produced with different viewing angles with respect to a 3D image target), e.g. a left-eye view and a right-eye view, a stereoscopic effect is created for viewer 6.
  • Fig. 2 also illustrates the displaying of three further sets of image data in three different sets of viewing sectors.
  • Multiview display 5 of Fig. 2 thus is capable of displaying five sets of image data in five different set of viewing sectors, so that actually five different views of a 3D image can be displayed.
  • Fig. 5 exemplarily illustrates five different views 103-1, 103-2, 103-3, 103-4 and 103-5 of a 3D image 100 that is composed of a 3D object 101 and a text block 102.
  • a 3D image 100 may for instance be used in a UI .
  • each view can be understood as a 2D representation of the 3D image with respect to a specific viewing angle.
  • the five views 103-1, 103-2, 103-3, 103-4 and 103-5 of Fig. 5 may for instance be described by five respective sets of image data, and these five sets of image data may then be displayed by the five viewing sectors of multiview display 5 of Fig. 2 to generate a 3D impression.
  • a multiview display 5 that applies spatial interlacing to display the sets of image data in the different sets of viewing sectors was exemplarily considered.
  • a multiview display that at least partially performs temporal interlacing to display the sets of image data in the different sets of viewing sectors could be deployed. For instance, instead of using only a subset of the pixels of the display panel 51 for the different sets of image data, all pixels of the display panel 51 could be used for each set of image data, and a bi-directional backlight structure could be used that allows to direct the light generated by the backlight into two or more distinct directions. In fast succession, then the sets of image data are displayed by the display panel, and the backlight is accordingly switched to direct the currently displayed set of image data towards a different viewing sectors.
  • Such a temporally interlaced multiview display allows displaying the sets of image data with full resolution.
  • temporal interlacing and spatial interlacing of sets of image data may be combined.
  • Fig. 3 is a diagram illustrating in more detail the viewing sectors generated by a multiview display, such as for instance the multiview display 5 of Fig. 2.
  • the diagram depicts the luminance distribution of five different sets of image data (e.g. the five sets of image data corresponding to the five views 103-1, 103-2, 103-3, 103-4 and 103-5 of 3D image 100 of Fig. 5) displayed by a multiview display (in candela per square meter, or "nits") as a function of the viewing angle with respect to the display (measured in the horizontal plane, with an angle of 0° defining a position straight in front of the display) .
  • a multiview display in candela per square meter, or "nits"
  • the peaks 91-1 and 91-2 illustrate two viewing sectors of a set of viewing vectors in which a first set of image data is displayed.
  • peaks 92-1 and 92-2 illustrate two viewing sectors of a set of viewing sectors in which a second set of image data is displayed
  • peak 93-1 illustrates one viewing sector of a set of viewing sectors in which a third set of image data is displayed
  • peaks 94-1 and 94-2 illustrate two viewing sectors of a set of viewing sectors in which a fourth set of image data is displayed
  • peaks 95-1 and 95-2 illustrate two viewing sectors of a set of viewing sectors in which a fifth set of image data is displayed.
  • a viewing sector may for instance be defined based on the intersections between the curves of different sets of image data. This yields a sector width of approximately 3°. Equally well, other definitions of viewing sectors are possible.
  • the viewing sectors at least partially overlap, which may be advantageous with respect to a smooth transition between the sets of image data displayed in the different viewing sectors .
  • the multiview display does not only allow to display the 3D image in an angular range of approximately 15°, corresponding to the peaks 91-1, 92-1, 93-1, 94-1 and 95-1, but also in a much broader angular range, due to the presence of further peaks 91-2, 92-2, 94-2 and 95-2, i.e. due to the fact that sets of image data are not displayed in single viewing sectors only, but in sets of viewing sectors.
  • Fig. 4 is a flowchart 400 of an exemplary method according to the present invention. The steps of this method may for instance be performed by processor 10 of device 1 (see Fig. Ia) or by processor 30 of device 3 of system 2 (see Fig. Ib) . This method is directed to increasing a sharpness and/or a resolution of at least a part of a 3D image.
  • the loop defined by steps 401-404 causes image data of the five views 103-1, 103-2, 103-3, 103-4 and 103-5 of 3D image 100 of Fig. 5 to be included in five respective sets of image data. If these sets of image data were provided to a multiview display with five sets of viewing sectors (as described with reference to Figs. 2 and 3 above), a strong motion parallax and/or a large viewing freedom would be caused for 3D image 100 of Fig. 5. However, the text block 102 would be likely to be blurred to such a degree that it may no longer be properly readable .
  • a step 405 it is determined if an increased sharpness is required for a part of the 3D image 100. As discussed above, this may for instance be the case for text block 102 of 3D image 100, which text block 102 is understood as a part of the 3D image 100.
  • step 405 If it is determined in step 405 that an increased sharpness is required for text block 102, the flowchart proceeds to step 406 and includes image data of a left-eye view of the text block 102 in a first half of sets of image data, and includes image data of a right-eye view of text block 102 in a second half of sets of image data.
  • the left-eye view of text block 102 may be view 103-2 of Fig. 5
  • the right-eye view of text block 102 may be view 103-4 of Fig. 5. Since the views of Fig.
  • the steps 401-406 of the flowchart 400 of Fig. 5 may for instance be performed during the production of the image data of the different views of the 3D image. Equally well, the steps 401-406 may be performed as a pre-processing on already existing sets of image data.
  • a multiview 3D display thus can be treated partly or completely as if it was a 2-view 3D display. This may especially be true if the viewing freedom of the multiview 3D display is close to that of a common 2-view 3D display.
  • the multiview display may for instance work as a 2-view 3D display, if the first half of the views is treated as the left-eye view and the second half of the views as the right-eye view.
  • the display hardware of the multiview display then may not need any changes, only content creation has to be adapted. Those parts of the 3D image that need to have more sharpness may then be sampled with only 2 views and the rest treated as a multiview image.
  • a background image in a 3D display may be a multiview image and a text in front of it (popping out) of the screen may only have two views.
  • Including different image data stemming from the same view of the 3D image (or a part thereof) increases the perceived resolution of the 3D image (or the part thereof) , because the viewing sectors in which these sets of image data are displayed may at least partially overlap (see Fig. 3) . This causes the image data displayed in adjacent viewing sectors to be merged in a viewer's eye, resulting in increased perceived resolution.
  • the computer software may be stored in a variety of storage media of electric, magnetic, electro-magnetic or optic type and may be read and executed by a processor, such as for instance a microprocessor.
  • a processor such as for instance a microprocessor.
  • the processor and the storage medium may be coupled to interchange information, or the storage medium may be included in the processor.

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Abstract

Cette invention porte sur un procédé, un programme d'ordinateur, un produit de programme d'ordinateur, un dispositif et un système pour fournir des données d'image apparentées à une image tridimensionnelle pour un affichage multi-vue. Les données d'image comprennent les ensembles de données d'image. L'affichage multi-vue comprend une pluralité d'ensembles d'un ou plusieurs secteurs de visualisation. L'affichage multi-vue est configuré pour afficher chaque ensemble de données d'image des ensembles de données d'image dans un ensemble différent de secteurs de visualisation de la pluralité d'ensemble de secteurs de visualisation pour créer un effet stéréoscopique. Dans au moins deux ensembles de données d'image des ensembles de données d'image, une indexation de données d'image provenant de la même vue d'au moins une partie de l'image tridimensionnelle est incluse, de telle sorte que le nombre de vues affichées pour la au moins une partie de l'image tridimensionnelle est inférieur au nombre d'ensemble de vecteurs de visualisation de l'affichage multi-vue.
PCT/IB2007/051208 2007-04-04 2007-04-04 Qualité d'image améliorée dans des dispositifs d'affichage multi-vue stéréoscopiques WO2008122838A1 (fr)

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US9215436B2 (en) 2009-06-24 2015-12-15 Dolby Laboratories Licensing Corporation Insertion of 3D objects in a stereoscopic image at relative depth
US9215435B2 (en) 2009-06-24 2015-12-15 Dolby Laboratories Licensing Corp. Method for embedding subtitles and/or graphic overlays in a 3D or multi-view video data
US9426441B2 (en) 2010-03-08 2016-08-23 Dolby Laboratories Licensing Corporation Methods for carrying and transmitting 3D z-norm attributes in digital TV closed captioning
US9225975B2 (en) 2010-06-21 2015-12-29 Microsoft Technology Licensing, Llc Optimization of a multi-view display
US10089937B2 (en) 2010-06-21 2018-10-02 Microsoft Technology Licensing, Llc Spatial and temporal multiplexing display
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WO2015074807A3 (fr) * 2013-11-20 2016-01-21 Koninklijke Philips N.V. Génération d'images en vue d'un affichage auto-stéréoscopique à vues multiples
CN105723705A (zh) * 2013-11-20 2016-06-29 皇家飞利浦有限公司 用于自动立体多视图显示器的图像的生成
CN105723705B (zh) * 2013-11-20 2019-07-26 皇家飞利浦有限公司 用于自动立体多视图显示器的图像的生成

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