Partitioning of MPEG coded video bitstreams for wireless transmission

Author

Gharavi, Hamid ; Richards, Christopher I.

Author_Institution

Dept. of Electron. & Electr. Eng., Loughborough Univ., UK

Volume

4

Issue

6

fYear

1997

fDate

6/1/1997 12:00:00 AM

Firstpage

153

Lastpage

155

Abstract

This paper introduces an efficient technique for dividing a preceded Moving Pictures Expert Group-2 (MPEG-2) bitstream into an arbitrary number of partitions in decreasing order of visual importance. For a fixed partition size ratio, this has been achieved by variable-length code (VLC) interleaving within a macroblock or group of macroblocks. The algorithm is capable of recreating a syntactically correct bitstream, regardless of the error rate on secondary partitions. This renders it applicable to many efficient transmission schemes, particularly over wireless channels.

Keywords

code standards; coding errors; interleaved codes; land mobile radio; telecommunication channels; telecommunication standards; variable length codes; video coding; MPEG coded video bitstream partitioning; MPEG-2; Moving Pictures Expert Group-2; error rate; fixed partition size ratio; macroblock group; macroblocks group; mobile channels; secondary partitions; transmission schemes; variable length code interleaving; visual importance; wireless channels; Discrete cosine transforms; Error analysis; Error correction; Error probability; Frequency synchronization; Interleaved codes; Modulation coding; Partitioning algorithms; Quadrature amplitude modulation; Switches;

fLanguage

English

Journal_Title

Signal Processing Letters, IEEE

Publisher

ieee

ISSN

1070-9908

Type

jour

DOI

10.1109/97.586033

Filename

586033