Three-dimensional DCT/WT compression using motion vector segmentation for low bit-rate video coding

Author

Gi Hun Lee ; Joon Ho Song ; Park, Rae-Hong

Author_Institution

Dept. of Electron. Eng., Sogang Univ., Seoul, South Korea

Volume

3

fYear

1997

Firstpage

456

Abstract

This paper proposes a method that combines 3-D compression with segmentation-based coding, in which 1-D temporal decomposition by the discrete cosine transform (DCT) and 1-D wavelet packet decomposition are employed. The proposed 1-D DCT/WT consists of a variable (2-, 3-, and 4-) point 1-D DCT for effective reduction of temporal redundancy and wavelet packet decomposition for adaptive selection of spatial frequency bands. Effectiveness of the proposed method is shown by computer simulation

Keywords

data compression; discrete cosine transforms; image segmentation; image sequences; motion estimation; transform coding; video coding; wavelet transforms; 1-D wavelet packet decomposition; 3-D compression; 3D DCT/WT compression; adaptive selection; discrete cosine transform; low bit-rate video coding; motion vector segmentation; segmentation-based coding; spatial frequency bands; temporal decomposition; temporal redundancy; variable-point 1-D DCT; wavelet packet decomposition; Discrete cosine transforms; Discrete wavelet transforms; Frequency; Layout; Motion compensation; Motion estimation; Testing; Video coding; Video sequences; Wavelet packets;

fLanguage

English

Publisher

ieee

Conference_Titel

Image Processing, 1997. Proceedings., International Conference on

Conference_Location

Santa Barbara, CA

Print_ISBN

0-8186-8183-7

Type

conf

DOI

10.1109/ICIP.1997.632156

Filename

632156