A new motion compensation/image sequence coding scheme

Author

Wang, Q. ; Clarke, R.J.

Author_Institution

Dept. of Electr. & Electron. Eng., Heriot Watt Univ., Edinburgh, UK

fYear

1991

fDate

14-17 Apr 1991

Firstpage

2733

Abstract

A general motion estimation algorithm using Fourier descriptors is developed, and results for a test sequence showing that the estimated 2-D motion parameters are very close to their values are given. A new image sequence coding scheme with combined motion compensation in which the above algorithm is implemented together with block matching is also proposed. A post-estimation technique is added to improve motion compensation efficiency. Mean/residue VQ is used further to encode the motion compensated error signals. A bit rate of 0.1 b/p is achieved for an 8 bit 256×256 moving sequence with good picture quality

Keywords

Fourier transforms; data compression; encoding; parameter estimation; picture processing; video signals; 2D motion parameter estimation; Fourier descriptors; block matching; mean/residue VQ; motion compensation/image sequence coding scheme; motion estimation algorithm; video signals; Data compression; Discrete Fourier transforms; Electronic equipment testing; Fourier transforms; Image coding; Image sequences; Motion compensation; Motion estimation; Pixel; Shape;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1991. ICASSP-91., 1991 International Conference on

Conference_Location

Toronto, Ont.

ISSN

1520-6149

Print_ISBN

0-7803-0003-3

Type

conf

DOI

10.1109/ICASSP.1991.150967

Filename

150967