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Proceedings of the IEEE

Issue 6 • Jun 1995

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Displaying Results 1 - 10 of 10
  • Motion estimation techniques for digital TV: a review and a new contribution

    Publication Year: 1995, Page(s):858 - 876
    Cited by:  Papers (243)  |  Patents (28)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1740 KB)

    The key to high performance in image sequence coding lies in an efficient reduction of the temporal redundancies. For this purpose, motion estimation and compensation techniques have been successfully applied. This paper studies motion estimation algorithms in the context of first generation coding techniques commonly used in digital TV. In this framework, estimating the motion in the scene is not... View full abstract»

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  • Region-based video coding using mathematical morphology

    Publication Year: 1995, Page(s):843 - 857
    Cited by:  Papers (97)  |  Patents (14)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1352 KB)

    This paper presents a region-based coding algorithm for video sequences. The coding approach involves a time-recursive segmentation relying on the pixels homogeneity, a region-based motion estimation, and motion compensated contour and texture coding. This algorithm is mainly devoted to very low bit rate video coding applications. One of the important features of the approach is that no assumption... View full abstract»

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  • Developments in model-based video coding

    Publication Year: 1995, Page(s):892 - 906
    Cited by:  Papers (75)  |  Patents (15)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1552 KB)

    This paper reports on current developments in the area of model-based video coding, a technique which shows promise of achieving very large bit-rate reductions for moving images. After an introduction and historical review, advances are summarized in several areas, among them improved 3D tracking of the human head and of facial expressions, the use of muscle-driven model animation with skin synthe... View full abstract»

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  • Cryptology for digital TV broadcasting

    Publication Year: 1995, Page(s):944 - 957
    Cited by:  Papers (165)  |  Patents (142)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1356 KB)

    Digital TV broadcasting needs new cryptological tools for conditional access, copyright protection and image authentication. The aim of this paper is to overview the corresponding systems' features. The description of a conditional access system is given. It is shown that equitable systems need the use of a trusted third party. The design of efficient copyright protection by watermarking images an... View full abstract»

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  • Digital television: a perspective

    Publication Year: 1995, Page(s):834 - 842
    Cited by:  Papers (5)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (864 KB)

    Commercial television was standardized originally mainly for entertainment, sports, and news, using over-the-air broadcasts. While a few upward compatible changes have been added over the years, the standard has remained essentially unchanged. Moreover, no other standard has had so many products and services built around it and withstood such a period of rapid technological change. Digital televis... View full abstract»

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  • New trends in very low bitrate video coding

    Publication Year: 1995, Page(s):877 - 891
    Cited by:  Papers (33)  |  Patents (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1356 KB)

    The interest in very low birate video coding has increased considerably with the creation of new services and applications requiring this class of bitrates in their function. This paper aims in presenting the current problems and requirements, as well as the efforts in very low bitrate video coding. It also provides a number of solutions in order to solve these problems and to fulfill desired requ... View full abstract»

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  • Digital video coding standards and their role in video communications

    Publication Year: 1995, Page(s):907 - 924
    Cited by:  Papers (53)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1740 KB)

    The efficient digital representation of image and video signals has been subject of considerable research over the past 20 years. With the growing availability of digital transmission links, progress in signal processing, VLSI technology and image compression research, visual communications has become more feasible than ever. Digital video coding technology has developed into a mature field and a ... View full abstract»

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  • Advanced television systems for terrestrial broadcasting: Some problems and some proposed solutions

    Publication Year: 1995, Page(s):958 - 981
    Cited by:  Papers (112)  |  Patents (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2584 KB)

    The first part of this paper discusses the requirements that must be met by a new television broadcasting system to maximize its acceptability to the various stakeholders, including broadcasters, equipment manufacturers, program producers, regulatory authorities, and viewers. The most important performance factors are efficient use of over-the-air spectrum, coverage versus quality, cost, interoper... View full abstract»

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  • Digital audio coding for visual communications

    Publication Year: 1995, Page(s):925 - 943
    Cited by:  Papers (23)  |  Patents (25)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1912 KB)

    Current and future visual communications for applications such as broadcasting videotelephony, video- and audiographic-conferencing, and interactive multimedia services assume a substantial audio component. Even text, graphics, fax, still images, email documents, etc. will gain from voice annotation and audio clips. A wide range of speech, wideband speech, and wideband audio coders is available fo... View full abstract»

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  • Coded orthogonal frequency division multiplex [TV broadcasting]

    Publication Year: 1995, Page(s):982 - 996
    Cited by:  Papers (431)  |  Patents (40)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1264 KB)

    Technological evolution and the ever-increasing demand for higher-quality services give broadcasters a strong incentive to completely digitize their broadcasting networks. This digitization, which is already well advanced in many program production areas and transmission links, now has to be extended to complete the last link in the broadcast chain; i.e., from broadcast transmitter to consumer rec... View full abstract»

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H. Joel Trussell
North Carolina State University