Successive refinement of video: fundamental issues, past efforts, and new directions
نویسنده
چکیده
The paper provides an overview of the fundamental issues confronting scalable video compression, together with some of the most promising general approaches to addressing these issues. For motivation, the paper sketches a compelling application in remote browsing of video, whose realization is not possible without efficient highly scalable video compression technology. The paper outlines some of the most important structural alternatives for wavelet-based scalable video compression systems, together with experimental findings in support of particular alternatives. In particular, the paper describes novel spatio-temporal decomposition structures, a novel finely embedded motion coding structure, and a complete compression system which addresses the needs of a wide range of potential applications. Preliminary compression performance results are provided together with information on an implementation which is capable of real-time decoding at CIF resolutions and beyond.
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