Title :
3-D wavelet coding of video with arbitrary regions of support
Author :
Minami, G. ; Xiong, Z. ; Wang, Aiping ; Chou, P.A. ; Mehrotra, S.
Author_Institution :
Dept. of Electr. Eng., Hawaii Univ., Honolulu, HI, USA
Abstract :
We examine three-dimensional (3-D) wavelet coding of video with arbitrary regions of support (AROS). A critically sampled wavelet transform is applied to the AROS and a modified 3-D set partitioning in hierarchical trees (SPIHT) algorithm is used to quantize and code the wavelet coefficients in the AROS only. Experiments show that, for typical MPEG-4 pre-segmented sequences, our proposed method can achieve a gain of up to 5.6 dB in average PSNR at the same rate over 3-D SPIHT coding of regular volumes that embed the AROS of the given video sequences.
Keywords :
image sequences; transform coding; video coding; wavelet transforms; 3D set partitioning in hierarchical trees; 3D wavelet coding; MPEG-4 pre-segmented sequence; PSNR; SPIHT algorithm; arbitrary regions of support; critically sampled wavelet transform; video coding; video sequences; Filters; Image coding; MPEG 4 Standard; PSNR; Partitioning algorithms; Testing; Video coding; Wavelet coefficients; Wavelet domain; Wavelet transforms;
Conference_Titel :
Signals, Systems, and Computers, 1999. Conference Record of the Thirty-Third Asilomar Conference on
Conference_Location :
Pacific Grove, CA, USA
Print_ISBN :
0-7803-5700-0
DOI :
10.1109/ACSSC.1999.831940
