The JPEG still picture compression standard
Communications of the ACM - Special issue on digital multimedia systems
MPEG: a video compression standard for multimedia applications
Communications of the ACM - Special issue on digital multimedia systems
Peer-to-peer multipoint video conferencing with layered video
Journal of Network and Computer Applications
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The availability of international standards based video codecs forinexpensive platforms is reducing the cost of desk-top video systemsto a level which makes their wide deployment possible. The currentsystems, however, are tuned for processing a single video stream onlyand their use in multiple video applications, such as continuouspresence video teleconferencing and digital picture-in-picture, isdifficult and inefficient. In this paper, we discuss two systems forefficient generation and display of multi-resolution, multiplecompressed video material. Based on simple additions to standardcodecs, both systems are capable of generating multiple bit streamscorresponding to different resolutions of a single video source andthey can decode such streams from multiple sources and display theresulting video sequences simultaneously. Both systems providemultiple video functionality to standard codecs with almost no extramemory or processing power requirements. Also, they make it possiblefor the users to customize the placement and size of their videowindows, just as text and graphics windows can bemanipulated.