Multihypothesis motion compensation in the redundant wavelet domain

Author

Cui, Suxia ; Wang, Yonghui ; Fowler, James E.

Author_Institution

Dept. of Electr. & Comput. Eng., Mississippi State Univ., MS, USA

Volume

2

fYear

2003

fDate

14-17 Sept. 2003

Abstract

Multihypothesis motion compensation is extended into the transform domain by using a redundant wavelet transform to produce multiple predictions that are diverse in transform phase. The corresponding inverse transform implicitly combines the multihypothesis predictions into a single spatial-domain prediction for motion compensation such that no side information is needed to describe the combination weights. Additionally, we use a hierarchical search to tailor the motion-vector field to individual phases. Substantial gains in rate-distortion performance are obtained in comparison to an equivalent system using single-phase prediction.

Keywords

motion compensation; motion estimation; rate distortion theory; search problems; wavelet transforms; combination weights; hierarchical search; inverse transform; motion-vector field; multihypothesis motion compensation; multiple predictions; rate-distortion performance; redundant wavelet transform; single spatial-domain prediction; transform domain; transform phase; Decoding; Discrete transforms; Discrete wavelet transforms; Motion compensation; Motion estimation; Signal resolution; Spatial resolution; Uncertainty; Wavelet domain; Wavelet transforms;

fLanguage

English

Publisher

ieee

Conference_Titel

Image Processing, 2003. ICIP 2003. Proceedings. 2003 International Conference on

ISSN

1522-4880

Print_ISBN

0-7803-7750-8

Type

conf

DOI

10.1109/ICIP.2003.1246614

Filename

1246614