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Stereoscopic Television, IEE Colloquium on

Date 15 Oct 1992

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  • IEE Colloquium on `Stereoscopic Television' (Digest No.173)

    Publication Year: 1992
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (16 KB)  

    The following topics were dealt with: stereoscopic television; autostereoscopic lenticular systems; 3D TV restricted parallax images; parallax barrier displays; stereoscopic imaging; 3D image coding; and 3D TV human factors View full abstract»

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  • Depth information aided image coding

    Publication Year: 1992 , Page(s): 10/1 - 10/8
    Cited by:  Patents (1)
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (332 KB)  

    In conventional video systems only a flat representation of reality is retained. This makes it hard to identify background patterns in images, which are generally of a minor significance to visual perception, as opposite to the main objects in the scene, which are made context-relevant by focusing through camera optical lens regulations. According to such a visual criterion, the separation of image contents into foreground and background areas is proposed through the analysis of the depth field associated with the paired views of a stereoscopic system; by the provision of a camera-originated signal varying with the shooting focal distance, positions of objects can be evaluated with reference to the plane of focus, thus enabling a priority scheme for bit assignment when digitally coding images for broadcast, transmission over wide-band networks or storage purposes. This process can be straightforwardly applied to 3DTV, as well as extended to the flat compatible images of a conventional single-channel video system suitably provided with an auxiliary stereo camera View full abstract»

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  • The implementation of a multi-view autostereoscopic display

    Publication Year: 1992 , Page(s): 4/1 - 416
    Cited by:  Patents (5)
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (708 KB)  

    A novel autostereoscopic display capable of real-time computer interaction, and refresh rate fast enough for stereoscopic television has been built at Cambridge University, in a joint programme of the Department of Engineering and Computer, Laboratory. The authors discuss the display, the dynamic lens principle and 3D display assembly, image generation, view angles, picture rates, slot shutter, CRT phosphor, drive signals, viewing distance, image depth, image resolution and picture distortion View full abstract»

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  • Autostereoscopic lenticular systems

    Publication Year: 1992 , Page(s): 2/1 - 2/5
    Cited by:  Patents (2)
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (208 KB)  

    The author discusses the research that has taken place at the Heinrich-Hertz-Institut fur Nachrichtentechnik into lenticular methods for autostereoscopic multichannel front projection (3D TV). The system requirements, large lenticular screens, rearprojection and direct view display are covered View full abstract»

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  • A computational framework for image analysis and coding of 3DTV

    Publication Year: 1992 , Page(s): 9/1 - 9/4
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (280 KB)  

    The authors consider stereoscopic television encoding and decoding, covering: image reconstruction from disparity and from mixed disparity and motion; stereo channel data rates; and alternative coding schemes. They then look at disparity analysis and its application to 3D TV View full abstract»

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  • Human factors of 3DTV: an overview of current research at Heinrich-Hertz-Institut Berlin

    Publication Year: 1992 , Page(s): 11/1 - 11/4
    Cited by:  Papers (1)
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (312 KB)  

    At present, it is not clear at which performance level and up to which extent stereoscopic methods have the potential to meet the user requirements on advanced future TV systems. Human factors studies intend to clarify this situation and to provide the basis to assess various technological solutions. The author concentrates on respective studies of the Human Factors Department, Heinrich Hertz Institute Berlin, and attempts to assess some approaches to 3DTV currently under discussion View full abstract»

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  • 3-DTV-a review of recent and current developments

    Publication Year: 1992 , Page(s): 1/1 - 1/4
    Cited by:  Papers (1)  |  Patents (1)
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (288 KB)  

    The author gives a short review of past activities in the field of anaglyptic broadcasts and high quality stereoscopic television. This is followed by an overview of 3D TV research activities in Europe (psychooptics, image processing and the COST 230 Project), the USA and Japan View full abstract»

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  • Autostereoscopic 3-D imaging systems for telecommunications applications

    Publication Year: 1992 , Page(s): 8/1 - 8/6
    Cited by:  Patents (1)
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (260 KB)  

    The authors describe a range of potential telecommunications applications for autostereoscopic 3D imaging systems. These are glasses free systems which use view determining screens, either parallax barriers or lenticular sheets. The applications include hardcopy still images, videotelephones and videoconferencing. The authors are constructing demonstrators to investigate the technical feasibility of such 3D applications. Their approach utilises view determining screens to produce autostereoscopic 3D images. They have designed a measurement system that tests the imaging quality of the view determining screen. This has been used to check results obtained with modelled performance derived from theory. Excellent agreement with theory has been achieved for the parallax barrier. Issues regarding these 3D systems demonstrators have been discussed and analysed View full abstract»

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  • Restricted parallax images for 3D TV

    Publication Year: 1992 , Page(s): 3/1 - 3/4
    Cited by:  Papers (1)  |  Patents (2)
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (160 KB)  

    An optical system capable of transmitting the full 3D information content within an extended scene without spacial distortion is described. The capture display and transmission of this image for application in 3D TV systems is considered. The bandwidth requirements and the prospects for translation to future 3D TV schemes is assessed View full abstract»

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  • Parallax barrier display systems

    Publication Year: 1992 , Page(s): 5/1 - 5/5
    Cited by:  Papers (2)  |  Patents (4)
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (212 KB)  

    The available techniques for autostereoscopic display which are suitable for television applications are probably limited to lenticular and parallax barriers and variations thereof. Of these the lenticular method is currently favoured by many. The author examines the virtues of the oft overlooked parallax barrier View full abstract»

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  • 3-D TV displays for industrial applications

    Publication Year: 1992 , Page(s): 7/1 - 7/4
    Cited by:  Patents (4)
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (228 KB)  

    The authors believe that interest in 3D displays and the number of displays produced will increase significantly in the near future because of technology improvements and other factors. They review the basic display technologies, with comments on their applications for industrial and other purposes. Many of the display types described have been built or tested at AEA Technology, Harwell, and the comments given are based on practical experience. The review includes polarised light displays, dual monitors with viewing hood, split screen systems, the anaglyph method, the eclipse method and autostereoscopic displays View full abstract»

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  • Digital stereoscopic imaging and applications. A way towards new dimensions. The RACE II Project DISTIMA

    Publication Year: 1992 , Page(s): 611 - 614
    Cited by:  Papers (4)  |  Patents (2)
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (216 KB)  

    Some members of the COST 230 group initiated another stereoscopic project funded by the European Community. This project, called DISTIMA (digital stereoscopic imaging and applications), started in January 1992 and will end after three years in December 1994. The project deals with the capture, coding, transmission and presentation of a two-channel digital stereoscopic system. The purpose is to perform research and development on software and hardware towards a hardware prototype of a stereoscopic system for broadcast and nonbroadcast applications. The author explains the project with emphasis on the signal processing strategy, disparity estimation and stereoscopic coding View full abstract»

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