Title :
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
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;
Conference_Titel :
Image Processing, 1997. Proceedings., International Conference on
Conference_Location :
Santa Barbara, CA
Print_ISBN :
0-8186-8183-7
DOI :
10.1109/ICIP.1997.632156
