WO2010022805A1 - Système d'affichage - Google Patents

Système d'affichage Download PDF

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Publication number
WO2010022805A1
WO2010022805A1 PCT/EP2009/003021 EP2009003021W WO2010022805A1 WO 2010022805 A1 WO2010022805 A1 WO 2010022805A1 EP 2009003021 W EP2009003021 W EP 2009003021W WO 2010022805 A1 WO2010022805 A1 WO 2010022805A1
Authority
WO
WIPO (PCT)
Prior art keywords
image
image data
eye
display system
display
Prior art date
Application number
PCT/EP2009/003021
Other languages
German (de)
English (en)
Inventor
Enrico Geissler
Frank-Oliver Karutz
Original Assignee
Carl Zeiss Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Carl Zeiss Ag filed Critical Carl Zeiss Ag
Publication of WO2010022805A1 publication Critical patent/WO2010022805A1/fr

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/017—Head mounted
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
    • G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
    • G02B30/22—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the stereoscopic type
    • G02B30/24—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the stereoscopic type involving temporal multiplexing, e.g. using sequentially activated left and right shutters
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
    • G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
    • G02B30/34—Stereoscopes providing a stereoscopic pair of separated images corresponding to parallactically displaced views of the same object, e.g. 3D slide viewers
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
    • G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
    • G02B30/34—Stereoscopes providing a stereoscopic pair of separated images corresponding to parallactically displaced views of the same object, e.g. 3D slide viewers
    • G02B30/36—Stereoscopes providing a stereoscopic pair of separated images corresponding to parallactically displaced views of the same object, e.g. 3D slide viewers using refractive optical elements, e.g. prisms, in the optical path between the images and the observer
    • 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
    • H04N13/139—Format conversion, e.g. of frame-rate or size
    • 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
    • H04N13/156—Mixing image signals
    • 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
    • H04N13/161—Encoding, multiplexing or demultiplexing different image signal components
    • 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
    • H04N13/332—Displays for viewing with the aid of special glasses or head-mounted displays [HMD]
    • H04N13/344—Displays for viewing with the aid of special glasses or head-mounted displays [HMD] with head-mounted left-right displays
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/597—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding specially adapted for multi-view video sequence encoding
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0101—Head-up displays characterised by optical features
    • G02B2027/0132—Head-up displays characterised by optical features comprising binocular systems
    • G02B2027/0134—Head-up displays characterised by optical features comprising binocular systems of stereoscopic type
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0101—Head-up displays characterised by optical features
    • G02B2027/014—Head-up displays characterised by optical features comprising information/image processing systems

Definitions

  • the present invention relates to a display system having a first display module for the left eye of a user and a second display module for the right eye of the user, each of the display modules each having an image forming element for generating an image on the basis of predetermined image data and an imaging optics for imaging the image Image such that the user can perceive the imaged image with the eye associated with the respective display module.
  • Such a display system is often designed as a so-called HMD device (head-mounted display device) in which the user in the mounted state of the display system with his left eye only the image generated by the first display module and with his right Eye can perceive only the image generated by the second display module.
  • HMD device head-mounted display device
  • Compression algorithms e.g., MPEG-2, MPEG-4. These are based on the replacement of
  • a controller has to supply the signals from the even-numbered lines to one and the odd-numbered line information to the other display module.
  • the image refresh rate is maintained, but the vertical resolution is halved.
  • the control device must be realized as a complex and costly electronics and it is a picture buffer necessary.
  • the object is achieved in a display system of the type mentioned above in that the display system has an image data electronics, which consists of each
  • Frame (frame) of a supplied video data stream having at least one frame in each of which image data of a left eye image and image data of a right eye image are juxtaposed in a horizontal direction and compressed in a horizontal direction, respectively, the image data of the image for extracted left eye, stretches in the horizontal direction and applies to the first display module as predetermined image data and the
  • Extracted image data of the image for the right eye stretches in the horizontal direction and applies to the second display module as predetermined image data.
  • the extraction and separation of the image data for the left and right eye can be realized in a simple manner.
  • no image buffer is necessary and the electronics can be kept simple.
  • the image data electronics can perform an interpolation to stretch the image data.
  • the image data electronics may have a higher sample rate for sampling the video data stream than the original sample rate for the frames to stretch the image data. This makes it possible to extend the image data in an extremely simple manner.
  • the display system may have a head-mounted on the head of the user headgear, to which the two display modules are attached.
  • the image data electronics may be attached to the headgear.
  • the headgear can be realized in a known manner. In particular, it can be realized in the manner of a spectacle frame.
  • the display system may further include an image rendering module that generates the video data stream from original image data and applies it to the image data electronics.
  • the connection between the image processing module and the image data electronics can be realized via connecting lines or also wirelessly.
  • the rendering module may generate the video data stream from existing original image data for left and right eye images.
  • the original image data for the images to be formed are supplied to the image-rendering module at an aspect ratio different from the aspect ratio of the image-forming elements, the image-rendering module selecting from the original image data for each image image data for the left and right eyes having the aspect ratio of the image generates image-forming elements that contain only partially identical image data, and this image data is compressed in the horizontal direction and arranged side by side in a single frame to generate the video data stream.
  • the rendering module generates from the original image data for each image image data having a left and right image portion for the left eye and image data having a left and right image portion for the right eye, wherein the right image portion of the image data for the left eye the left image portion of the right eye image data, and the aspect ratio of the right and left eye image data corresponds to the aspect ratio of the imaging elements.
  • the two display modules overlap the same image data (middle image part) to the user displayed, wherein the first display module is still additional information on the left image wheel and the second display module still additional information on the right edge of the screen. This is then assembled by the viewer's brain into a single image with a higher aspect ratio than the aspect ratio of the imaging elements.
  • the imaging elements are preferably planar image modulators, such as e.g. Tilting mirror arrays, LCD modulators or LCoS modulators. Also, OLED displays can be used.
  • the display modules preferably generate a virtual image that the user can perceive at a predetermined viewing distance. Furthermore, the display modules can be designed so that the user can only perceive the images generated by means of the display modules or can perceive the images generated in superimposition with the environment.
  • the display system can be designed such that the user with his left eye can perceive only the image generated by means of the first display module and with his right eye only the image generated by means of the second display module.
  • the display system may comprise elements of HMD devices which are known to the person skilled in the art and which are necessary for operation.
  • Fig. 1 is a schematic view of an embodiment of the display system according to the invention.
  • Fig. 2 is a diagram for explaining the video data stream
  • Fig. 3 is another illustration for explaining the video data stream.
  • the display system 1 comprises a head holder 2 which can be placed on the head of a user and is designed here like a spectacle frame, a first display module 3 for the user's left eye LA and a second display module 4 for the user right eye RA of the user.
  • the two display modules 3, 4 are each attached to the head holder 2 and each contain an image-forming element 5 (here in the form of a two-dimensional image modulator) and an imaging optics 6.
  • the display system 1 further comprises an image data electronics 7, which is also attached here to the headgear 2 and a video stream 8 is fed with multiple frames.
  • the video data stream 8 is generated by an image editing module 9 of the display system 1 based on input original image data 10 in the manner described in more detail below in connection with FIG. 2.
  • the original image data 10 is suitable for a 3D representation, and thus for each image to be displayed, image data 01 L for the left eye and image data 01 R for the right eye are present.
  • These original image data 10 applied to the image processing module 9 are compressed in the horizontal direction by a factor of 2, so that they are present in a horizontal position in a frame F1 of the video data stream 8 to be generated. This is done for each image to be displayed three-dimensionally, so that in each frame F1-F4 of the generated video data stream, the right and left eye image data in the horizontal direction are compressed by a factor of 2 and thus both images in a single frame in the horizontal direction can be arranged side by side.
  • This video data stream 8 is supplied to the image data electronics 7, which extracts the image data for the left eye and right eye from each frame F1-F4 by a factor of 2 and as predetermined image data BL to the image-forming element 5 of the first display module 3 and as predetermined image data BR applies to the image-forming element 5 of the second display module 4.
  • the image-forming modules 5 Based on the applied image data BL and BR, the image-forming modules 5 generate the corresponding images which are imaged by means of the imaging optics 6 so that a user wearing the headgear 2 with his left eye LA generates only the one generated by the image-forming element 5 of the first display module 3 Picture and with his right eye RA only that of the image-forming element 5 of the second Display module 4 can perceive generated image each as a virtual image. Due to the parallax contained in the image data BL and BR, the user perceives the two images generated by the two image-forming elements 5 as a three-dimensional image.
  • the video data stream 8 is an analog data stream
  • extraction and stretching of the image data can be easily accomplished by scanning the image data electronics 7 every frame F1-F4 at a doubled sampling rate.
  • no image memory and no complex manipulation electronics must be provided.
  • a conventional image data electronics 7 can be used, in which only the sampling rate is doubled accordingly.
  • the procedure may be as follows. From the original image data 10, of which a single image 01 is shown by way of example in FIG. 3, a left partial image 01 L in the format 4: 3 and a right partial image 01 R are obtained.
  • the left field 01 L contains the areas TL and TM of the picture 01 and the right field 01 R contains the areas TM and TR.
  • the horizontal dimensions (in Fig. 3 from left to right) of the areas TL, TM and TR are chosen so that the aspect ratio of the two fields 01 L and 01 R is 4: 3.
  • the two sub-images 01 L and 01 R contain the same image contents (shaded region TM) and different image contents (regions TL and TR).
  • the two fields 01 L and 01 R are then compressed in the horizontal direction in the same manner as in Fig. 2 by a factor of 2 and arranged in a single frame F1 in the horizontal direction next to each other.
  • the image data electronics 7 extracts the predetermined image data for the first and second display modules 3, 4 in the same way as in FIG. 2.
  • this image data is assembled into a 16: 9 format image by the user, as shown schematically as image B.
  • the image diagonal D in the perceived image B is thus 22% greater for the user in the example described here than the image diagonal for displaying an image in the pure 4: 3 format.
  • the field of view for the user at the same viewing distance is significantly increased, without having to change the imaging optics 6 or the image-forming elements 5.
  • the generation of the video data stream described in connection with FIG. 3 advantageously also results in no image information being lost in the display and in that no disturbing black bars need to be presented to the user.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)

Abstract

L'invention concerne un système d'affichage avec un premier module d'affichage (3) pour l'oel gauche (LA) d'un utilisateur et un deuxième module d'affichage (4) pour l'oel droit (RA) de l'utilisateur. Chacun des modules d'affichage (3, 4) comprend respectivement un élément générateur d'images (5) destiné à générer une image sur la base de données d'image prédéfinies et une optique de reproduction (6) destiné à reproduire l'image de telle manière que l'utilisateur puisse percevoir l'image reproduite avec l'oel (LA, RA) associé au module (3, 4) concerné. Le système d'affichage comprend une électronique de données d'image (7) qui extrait de chaque photogramme (F1, F2, F3, F4) d'un flux de données vidéo (8) amené comprenant au moins un photogramme (F1 - F4), dans lequel des données d'une image pour l'oel gauche et des données d'une image pour l'oel droit sont disposées les unes à côté des autres dans le sens horizontal et sont en outre compressées dans le sens horizontal, les données de l'image pour l'oel gauche, les étire dans le sens horizontal et les applique en tant que données d'image prédéfinies au premier module d'affichage (3) et les données de l'image pour l'oel droit, les étire dans le sens horizontal et les applique en tant que données d'image prédéfinies au deuxième module d'affichage (4).
PCT/EP2009/003021 2008-08-29 2009-04-24 Système d'affichage WO2010022805A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202008011541.8 2008-08-29
DE202008011541U DE202008011541U1 (de) 2008-08-29 2008-08-29 Anzeigesystem

Publications (1)

Publication Number Publication Date
WO2010022805A1 true WO2010022805A1 (fr) 2010-03-04

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ID=39917887

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/003021 WO2010022805A1 (fr) 2008-08-29 2009-04-24 Système d'affichage

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DE (1) DE202008011541U1 (fr)
WO (1) WO2010022805A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009039266A1 (de) 2009-08-28 2011-03-03 Selt, Hermann Josef, Dipl.-Designer (FH) Stereoskopische Anzeigevorrichtung
DE102010034248A1 (de) 2010-08-13 2012-02-16 Hermann Josef Selt Stereoskopische Anzeigeanordnung
DE202020000635U1 (de) 2020-02-17 2020-06-19 Carl Zeiss Microscopy Gmbh Binokularer Digitaltubus für ein Mikroskop

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2140242A (en) * 1983-05-06 1984-11-21 Philips Nv Colour television transmission or data storage system with time-division multiplex encoding and data generator and receiver suitable therefor
GB2174266A (en) * 1985-04-15 1986-10-29 Philips Nv Television system and data generator and receiver suitable therefor
EP0660620A1 (fr) * 1993-12-22 1995-06-28 Canon Kabushiki Kaisha Appareil et procédé d'affichage
US5473365A (en) * 1992-12-25 1995-12-05 Olympus Optical Co., Ltd. Head-mounted image display apparatus in which a system is capable of changing aspect ratio of observed image

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2140242A (en) * 1983-05-06 1984-11-21 Philips Nv Colour television transmission or data storage system with time-division multiplex encoding and data generator and receiver suitable therefor
GB2174266A (en) * 1985-04-15 1986-10-29 Philips Nv Television system and data generator and receiver suitable therefor
US5473365A (en) * 1992-12-25 1995-12-05 Olympus Optical Co., Ltd. Head-mounted image display apparatus in which a system is capable of changing aspect ratio of observed image
EP0660620A1 (fr) * 1993-12-22 1995-06-28 Canon Kabushiki Kaisha Appareil et procédé d'affichage

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