Codeword assignment for fixed-length entropy coded video streams

Author

Bernaus, Ramon Llados ; Stevenson, Robert L.

Author_Institution

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

fYear

1998

fDate

30 Mar-1 Apr 1998

Firstpage

269

Lastpage

278

Abstract

Fixed length entropy codes (FLC) have been successfully employed as an alternative to the popular variable length codes (VLC) in video codecs. This paper presents a codeword assignment for FLC coded interframe coefficients and motion vectors that minimizes the effects of bit errors on the decoded video sequence. Intensive testing has shown that with the proposed solution, the distortion introduced by transmission errors is coarsely half of that obtained with VLC codes, while maintaining the compression efficiency

Keywords

coding errors; decoding; discrete cosine transforms; entropy codes; image sequences; motion compensation; transform coding; video codecs; video coding; DCT coefficients; bit errors; codeword assignment; compression efficiency; decoded video sequence; distortion; fixed length entropy codes; fixed-length entropy coded video streams; interframe coefficients; motion vectors; motion-compensated hybrid encoders; testing; transmission errors; variable length codes; video codecs; Algorithm design and analysis; Decoding; Discrete cosine transforms; Entropy coding; Probability distribution; Streaming media; Testing; Video codecs; Video compression; Video sequences;

fLanguage

English

Publisher

ieee

Conference_Titel

Data Compression Conference, 1998. DCC '98. Proceedings

Conference_Location

Snowbird, UT

ISSN

1068-0314

Print_ISBN

0-8186-8406-2

Type

conf

DOI

10.1109/DCC.1998.672155

Filename

672155