Wavelet-domain shift invariant motion estimation and compensation

Author

Cai, Weuting ; Adjouadi, Malek

Author_Institution

Dept. of Electr. & Comput. Eng., Florida Int. Univ., Miami, FL, USA

fYear

2004

fDate

20-22 Oct. 2004

Firstpage

49

Lastpage

52

Abstract

Motion estimation and motion compensation (MEMC) has been applied inside the wavelet-transformed domain for video compression at low bit rates. However, pixel-based motion estimation in the wavelet domain is not as straightforward as in the spatial domain due to the shift variance property caused by decimation. The paper finds a new wavelet-based motion estimation and compensation method, named as the sub-decimation decomposition method, to perform shift invariant motion estimation inside the wavelet transformed domain, so that better matching blocks are compensated to achieve more efficient video compression.

Keywords

data compression; invariance; motion compensation; motion estimation; video coding; wavelet transforms; decimation; motion compensation; motion estimation; shift invariance; shift variance property; spatial domain; subdecimation decomposition method; video compression; wavelet domain; Computer science education; Discrete wavelet transforms; Educational technology; Filter bank; Image reconstruction; Motion compensation; Motion estimation; Video compression; Wavelet domain; Wavelet transforms;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Multimedia, Video and Speech Processing, 2004. Proceedings of 2004 International Symposium on

Print_ISBN

0-7803-8687-6

Type

conf

DOI

10.1109/ISIMP.2004.1433997

Filename

1433997