Comparison of fixed-rate video codecs for wireless videophony

Author

Streit, J. ; Hanzo, L.

Author_Institution

Dept. of Electron. & Comput. Sci., Southampton Univ., UK

Volume

3

fYear

1997

fDate

4-7 May 1997

Firstpage

1967

Abstract

Gain-cost quantised, fixed but arbitrarily programmable rate discrete cosine transformed (DCT) video codecs, vector-quantised (VQ) and quad-tree (QT) coding algorithms are proposed and their video quality, complexity, compression ratio and error resilience trade-offs are comparatively analysed under identical conditions. Our candidate codecs are compared to the standard H261 and MPEG-2 benchmark codecs. The proposed codecs facilitate wireless videophony for quarter common intermediate format (QCIF) video sequences scanned at 10 frames/s at rates around 10 kbps in second-generation mobile systems

Keywords

computational complexity; data communication; discrete cosine transforms; image sequences; land mobile radio; quadtrees; telecommunication standards; transform coding; vector quantisation; video codecs; video coding; videotelephony; 10 kbit/s; complexity; compression ratio; error resilience trade-offs; fixed-rate video codecs; gain-cost quantised fixed programmable rate discrete cosine transform video codecs; quad-tree coding algorithms; quarter common intermediate format video sequences; second-generation mobile systems; vector-quantised algorithms; video quality; wireless videophony; Algorithm design and analysis; Bit rate; Code standards; Discrete cosine transforms; Entropy; Motion compensation; Redundancy; Video codecs; Video compression; Video sequences;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 1997, IEEE 47th

Conference_Location

Phoenix, AZ

ISSN

1090-3038

Print_ISBN

0-7803-3659-3

Type

conf

DOI

10.1109/VETEC.1997.605902

Filename

605902