A perceptual based dead-zone adjustment algorithm for H.264 [video coding]

Author

Jiang, Wei ; Sun, Jun ; Yu, Songyu ; Wang, Jia

Author_Institution

Inst. of Image Commun. & Inf. Process. Res., Shanghai Jiao Tong Univ., China

fYear

2004

fDate

20-22 Oct. 2004

Firstpage

498

Lastpage

501

Abstract

A new adaptive dead-zone adjustment algorithm has been developed, based on the human visual model, for H.264 video coding. In this paper, the proposed scheme utilizes rate-distortion (RD) optimization technology to adaptively adjust the dead-zone size. Also, incorporation of the human visual system model into the RD cost computation improves the performance. Compared with the H.264 reference coder, the proposed algorithm can efficiently improve the subjective viewing quality and reduce the bit rate by 10% on average.

Keywords

adaptive signal processing; image reconstruction; rate distortion theory; video coding; visual perception; H.264 video coding standard; RD cost computation; adaptive dead-zone adjustment algorithm; bit rate reduction; dead-zone size adaptive adjustment; human visual system model; perceptual adjustment algorithm; rate-distortion optimization; reconstructed subjective viewing quality; Bit rate; Humans; IEC standards; ISO standards; Motion pictures; PSNR; Quantization; Rate-distortion; Video coding; Visual system;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Multimedia, Video and Speech Processing, 2004. Proceedings of 2004 International Symposium on

Print_ISBN

0-7803-8687-6

Type

conf

DOI

10.1109/ISIMP.2004.1434110

Filename

1434110