A hierarchical video coder with cache motion information

Author

Truong, K.K. ; Richardson, Craig H.

Author_Institution

Atlanta Signal Process. Inc., GA, USA

Volume

2

fYear

1996

fDate

7-10 May 1996

Firstpage

1209

Abstract

This paper presents a new video coder that operates below 16 kbps and other rates below 64 kbps. The coder uses a quadtree-based hierarchical structure and a distortion measure that controls which levels of the hierarchy are selected. This paper also introduces a cache motion predictor that is based on the principles of designing cache memory. The motion cache can significantly reduce the bit-rate in coding motion vectors while also reducing the computational complexity when compared to the full-search block matching algorithm. The 10 frame/sec QCIF color Miss America sequence was coded with an average Y-PSNR of 35.52 dB at 16 kbps

Keywords

cache storage; computational complexity; entropy codes; image sequences; motion compensation; motion estimation; quadtrees; vector quantisation; video coding; 16 kbit/s; QCIF color Miss America sequence; Y-PSNR; bit-rate reduction; cache memory; cache motion information; cache motion predictor; computational complexity; distortion measure; hierarchical video coder; motion vector coding; quadtree-based hierarchical structur; Cache memory; Computational complexity; Image coding; Motion estimation; PSNR; Predictive coding; Signal processing; Signal processing algorithms; Teleconferencing; Video sequences;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1996. ICASSP-96. Conference Proceedings., 1996 IEEE International Conference on

Conference_Location

Atlanta, GA

ISSN

1520-6149

Print_ISBN

0-7803-3192-3

Type

conf

DOI

10.1109/ICASSP.1996.543583

Filename

543583