Spatially unequal error protection in video coding for low SNR channels

Author

Ito, Kazuhito ; Yamamoto, Hiroshi

Author_Institution

Dept. of Electr. & Electron. Syst., Saitama Univ., Japan

Volume

1

fYear

2004

fDate

25-28 July 2004

Abstract

There is an increasing demand for video applications on mobile communication channels which are rather narrow bandwidth and low signal-to-noise ratio. Before transmission, video signals are coded to reduce the amount of data and channel coded with error correction codes to minimize the influence of noise during the data transfer. The channel coding usually sacrifices the effective bandwidth and it may result in degradation of the decoded video quality. In this paper, we propose an error protection scheme for video codes where the strength of error protection is spatially changed according to the importance of the video contents.

Keywords

channel coding; code standards; error correction codes; mobile communication; telecommunication channels; video coding; channel coding; data transfer; error correction codes; low SNR channels; low signal to noise ratio; mobile communication channels; spatially unequal error protection; video coding; video quality degradation; Bandwidth; Channel coding; Decoding; Degradation; Error correction codes; Mobile communication; Noise reduction; Protection; Signal to noise ratio; Video coding;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2004. MWSCAS '04. The 2004 47th Midwest Symposium on

Print_ISBN

0-7803-8346-X

Type

conf

DOI

10.1109/MWSCAS.2004.1353974

Filename

1353974