Efficient Level and Zero Coding Methods for H.264/AVC Lossless Intra Coding

Author

Heo, Jin ; Ho, Yo-Sung

Author_Institution

Sch. of Inf. & Mechatron., Gwangju Inst. of Sci. & Technol. (GIST), Gwangju, South Korea

Volume

17

Issue

1

fYear

2010

Firstpage

87

Lastpage

90

Abstract

Since H.264/AVC was designed mainly for lossy video coding, the entropy coding methods in H.264/AVC are not appropriate for lossless video coding. Based on statistical differences of residual data in lossy and lossless coding, we develop efficient level and zero coding methods. Therefore, we design an improved context-based adaptive variable length coding (CAVLC) scheme for lossless intra coding by modifying the relative entropy coding parts in H.264/AVC. Experimental results show that the proposed method provides approximately 6.8% bit saving, compared with the H.264/AVC FRExt high profile.

Keywords

adaptive codes; entropy codes; statistical analysis; variable length codes; video coding; CAVLC scheme; H.264/AVC lossless intra coding; context-based adaptive variable length coding scheme; level coding method; lossless video coding; lossy video coding; relative entropy coding method; statistical difference; zero coding method; CAVLC; H264/AVC; intra coding; lossless video coding;

fLanguage

English

Journal_Title

Signal Processing Letters, IEEE

Publisher

ieee

ISSN

1070-9908

Type

jour

DOI

10.1109/LSP.2009.2031710

Filename

5232899