Title :
Bit-plane differential EZW for the compression of video for variable bandwidth channels
Author :
Wyman, R.H. ; Cheung, P.Y.K.
Author_Institution :
Dept. of Electr. & Electron. Eng., Imperial Coll. of Sci., Technol. & Med., London, UK
Abstract :
Transmitting video for the purpose of video conferencing channels that have a degree of uncertainty about their instantaneous bandwidth handling capabilities poses many problems with which traditional video conferencing algorithms are ill able to cope. This paper investigates the idea of coding for a channel that has a variable but known guaranteed proportion of bandwidth which is often lower than the actual instantaneous bandwidth available. The ideal properties of an algorithm designed for this sort of channel are investigated and an algorithm that is easily implementable in hardware or software is proposed and its preliminary performance indicated
Keywords :
data compression; telecommunication channels; teleconferencing; video coding; wavelet transforms; bit-plane differential EZW algorithm; embedded zerotree wavelet algorithm; instantaneous bandwidth handling capabilities; variable bandwidth channels; video compression; video conferencing channels; wavelet decomposition; Bandwidth; Code standards; Decoding; Distortion measurement; Image coding; Low pass filters; Mercury (metals); Phase change materials; Streaming media; Video compression;
Conference_Titel :
Circuits and Systems, 1997. ISCAS '97., Proceedings of 1997 IEEE International Symposium on
Print_ISBN :
0-7803-3583-X
DOI :
10.1109/ISCAS.1997.621960
