Object-level bit allocation and scalable rate control for MPEG-4 video coding

Author

He, Zhahaa ; Kim, Yong Kwan ; Mitra, Sanjit K.

Author_Institution

Dept. of Electr. & Comput. Eng., California Univ., Santa Barbara, CA, USA

fYear

2001

fDate

2001

Firstpage

63

Lastpage

66

Abstract

In this work, a novel framework for rate-distortion (R-D) analysis is developed. Based on this framework, an object-level bit allocation scheme is proposed for MPEG-4 video coding to determine the target number of bits for each video object. We then propose a macroblock-level rate control algorithm to achieve the bits target for each video object. The proposed bit allocation and rate control algorithm outperforms the VM8 rate control algorithm by providing more accurate rate regulation and significantly improved picture quality

Keywords

code standards; rate distortion theory; variable rate codes; video coding; MPEG-4; R-D analysis; macroblock-level rate control algorithm; object-level bit allocation; picture quality; rate-distortion analysis; scalable rate control; video coding; Bit rate; Discrete cosine transforms; Image coding; Layout; MPEG 4 Standard; Performance analysis; Quantization; Rate distortion theory; Rate-distortion; Video coding;

fLanguage

English

Publisher

ieee

Conference_Titel

MPEG-4. 2001 Proceedings of Workshop and Exhibition on

Conference_Location

San Jose, CA

Print_ISBN

0-7803-7165-8

Type

conf

DOI

10.1109/MPEG.2001.996449

Filename

996449