Television – Bandwidth reduction system – Data rate reduction
Patent
1993-09-03
1996-02-27
Chin, Tommy P.
Television
Bandwidth reduction system
Data rate reduction
H04N 730
Patent
active
054952921
ABSTRACT:
A video coding scheme based on wavelet representation performs motion compensation in the wavelet domain rather than spatial domain. This inter-frame wavelet transform coding scheme preferably uses a variable-size multi-resolution motion compensation (MRMC) prediction scheme. The MRMC scheme produces displaced residual wavelets (DRWs). An optimal bit allocation algorithm produces a bit map for each DRW, and each DRW is then adaptively quantized with its respective bit map. Each quantized DRW is then coded into a bit stream.
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Zafar Sohail
Zhang Ya-Qin
Chin Tommy P.
GTE Laboratories Incorporated
Lohmann, III Victor F.
Tung Bryan S.
Yeo J. Stephen
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