Motion vector certainty reduces bit rate in backward motion estimation video coding

Astrid Lundmark; Haibo Li; Robert Forchheimer

doi:10.1117/12.386542

30 May 2000 Motion vector certainty reduces bit rate in backward motion estimation video coding

Astrid Lundmark, Haibo Li, Robert Forchheimer

Proceedings Volume 4067, Visual Communications and Image Processing 2000; (2000) https://doi.org/10.1117/12.386542
Event: Visual Communications and Image Processing 2000, 2000, Perth, Australia

Abstract

Wavelet video coding using motion vectors estimated simultaneously at the transmitter and receiver side from the transmitted image data have been reported to have good compression capabilities, comparable to the non-scalable version of H.263. When scalability is required, the comparison turns even more in favor of the wavelet coding scheme. This paper shows that it is possible to reduce the bit-rate further in backward motion estimation schemes by using the certainty of each estimated motion vector. In this paper we report a lowering in bit rate of about 20% by using the motion vector certainty as background information in the entropy coding/decoding process. We also propose a low- complexity algorithm which does not require motion estimation/compensation, but uses the motion vector certainty.

Citation Download Citation

Astrid Lundmark, Haibo Li, and Robert Forchheimer "Motion vector certainty reduces bit rate in backward motion estimation video coding", Proc. SPIE 4067, Visual Communications and Image Processing 2000, (30 May 2000); https://doi.org/10.1117/12.386542

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