A perceptually efficient VBR rate control algorithm

Author

Pickering, Mark R. ; Arnold, John F.

Author_Institution

Dept. of Electr. Eng., New South Wales Univ., Kensington, NSW, Australia

Volume

3

Issue

5

fYear

1994

fDate

9/1/1994 12:00:00 AM

Firstpage

527

Lastpage

532

Abstract

This paper describes a rate control algorithm for a variable bit-rate (VBR) video coder. The algorithm described varies the quantizer step size of the coder according to properties of an image sequence that affect the perception of errors. The algorithm also limits the output bit-rate of the coder without the use of buffers to more efficiently use network bandwidth. It is shown that a VBR encoder using this algorithm will provide decoded image sequences with a consistent perceived quality that is comparable with, or better than, the perceived quality of images coded with a CBR encoder

Keywords

B-ISDN; coding errors; image coding; image sequences; motion estimation; video signals; visual perception; B-ISDN; VBR; VBR encoder; bit rate prediction; coefficient quantization; discrete cosine transform; image sequence; motion-compensated prediction; perceived image quality; perception of errors; quantizer step size; rate control algorithm; variable bit-rate video coder; variable length coding; B-ISDN; Decoding; Discrete cosine transforms; Frequency; Humans; Image sequences; Size control; Spatial resolution; TV; Visual system;

fLanguage

English

Journal_Title

Image Processing, IEEE Transactions on

Publisher

ieee

ISSN

1057-7149

Type

jour

DOI

10.1109/83.334988

Filename

334988