New CAVLC encoding algorithm for lossless intra coding in H.264/AVC

Author

Heo, Jin ; Kim, Seung-Hwan ; Ho, Yo-Sung

Author_Institution

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

fYear

2009

fDate

6-8 May 2009

Firstpage

1

Lastpage

4

Abstract

Context-based adaptive variable length coding (CAVLC) of H.264/AVC was originally designed for quantized transform coefficients in lossy video coding, and as such does not yield adequate performance in lossless video coding. In this paper, we propose an improved CAVLC for lossless intra coding. Considering statistical differences of residual data in lossy and lossless coding, we design a new CAVLC encoding algorithm. Experimental results show that the proposed method provides approximately 7.6% bit savings, compared to the current H.264/AVC FRExt high profile.

Keywords

adaptive codes; encoding; statistical analysis; variable length codes; video coding; CAVLC encoding algorithm; H.264/AVC; context-based adaptive variable length coding; lossless intracoding; lossy coding; lossy video coding; quantized transform coefficients; residual data; statistical differences; Algorithm design and analysis; Automatic voltage control; Encoding; Entropy coding; Performance loss; Pulse modulation; Quantization; Standards development; Video coding; Video compression; CAVLC; H.264/AVC; lossless video coding;

fLanguage

English

Publisher

ieee

Conference_Titel

Picture Coding Symposium, 2009. PCS 2009

Conference_Location

Chicago, IL

Print_ISBN

978-1-4244-4593-6

Electronic_ISBN

978-1-4244-4594-3

Type

conf

DOI

10.1109/PCS.2009.5167406

Filename

5167406