Bidirectional block placement in corrupted fixed-length entropy coded video streams

Author

Llados-Bentaus, R. ; Stevenson, Robert L.

Author_Institution

Dept. of Electr. Eng., Notre Dame Univ., IN, USA

fYear

1998

fDate

9-12 Aug 1998

Firstpage

391

Lastpage

394

Abstract

Fixed length entropy codes (FLC) have been employed as an alternative to the usual variable length codes (VLC) in video codecs. The effect of a transmission error in an FLC coded stream does not propagate beyond the corrupted codeword because of its fixed parsing structure. This paper presents a new decoding algorithm for FLC compressed video streams that fully exploits the error resilience properties of FLC codes combined with spatial synchronization points. While maintaining the compression efficiency of VLC coded video streams, the proposed solution is a novel idea to combat the consequences of transmission errors and it is totally compatible with more traditional solutions such as error concealment and forward error correcting codes

Keywords

data compression; decoding; entropy codes; synchronisation; video coding; FLC coded stream; bidirectional block placement; compressed video streams; compression efficiency; corrupted fixed-length entropy coded video streams; decoding algorithm; error resilience properties; fixed parsing structure; spatial synchronization points; transmission error; video codecs; Code standards; Decoding; Discrete cosine transforms; Entropy; Error correction codes; Insertion loss; Resilience; Streaming media; Video codecs; Video compression;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1998. Proceedings. 1998 Midwest Symposium on

Conference_Location

Notre Dame, IN

Print_ISBN

0-8186-8914-5

Type

conf

DOI

10.1109/MWSCAS.1998.759513

Filename

759513