Semi-fixed-length motion vector coding for H.263-based low bit rate video compression

Author

Côté, Guy ; Gallant, Michael ; Kossentiai, F.

Author_Institution

Dept. of Electr. Eng., British Columbia Univ., Vancouver, BC, Canada

Volume

8

Issue

10

fYear

1999

fDate

10/1/1999 12:00:00 AM

Firstpage

1451

Lastpage

1455

Abstract

We present a semi-fixed-length motion vector coding method for H.263-based low bit rate video compression. The method exploits structural constraints within the motion field. The motion vectors are encoded using semi-fixed-length codes, yielding essentially the same levels of rate-distortion performance and subjective quality achieved by H.263´s Huffman-based variable length codes in a noiseless environment. However, such codes provide substantially higher error resilience in a noisy environment

Keywords

cellular radio; code standards; data compression; fading channels; noise; rate distortion theory; telecommunication standards; video coding; BSC model; GSM fading channel model; H.263-based low bit rate video compression; Huffman-based variable length codes; binary symmetric channel; error resilience; motion field; noiseless environment; noisy environment; rate-distortion performance; semi-fixed-length codes; semi-fixed-length motion vector coding; structural constraints; subjective quality; Bit rate; Decoding; Entropy coding; Image coding; Noise level; Resilience; Telephony; Video coding; Video compression; Working environment noise;

fLanguage

English

Journal_Title

Image Processing, IEEE Transactions on

Publisher

ieee

ISSN

1057-7149

Type

jour

DOI

10.1109/83.791971

Filename

791971