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Proceedings Paper

Adaptive One Dimensional DCT-VQ For Motion Compensated Video Coding
Author(s): Ali N. Akansu; Jung Hui Chien
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Paper Abstract

The motion compensated frame difference (MCFD) signals of video have much less correlation than the still frames. This change of source statistics brings the compactness power of the 2D DCT down. The Hadamard matrix decomposition 1D DCT of MCFD is proposed in this paper. The 1D DCT case is compared with the 8x8 2D DCT case. The results indicate that both perform the same practically. But the first is simpler computationally than the latter. Transform coefficients split into bands and each band is grouped based on the variances. The VQ of transform coefficient bands is employed. 35.77 dB of PSNR at 0.3245 bits/pixel is obtained with the proposed scheme which is also perceptually as good as the 2D DCT case.

Paper Details

Date Published: 1 November 1989
PDF: 8 pages
Proc. SPIE 1199, Visual Communications and Image Processing IV, (1 November 1989); doi: 10.1117/12.970059
Show Author Affiliations
Ali N. Akansu, NJIT ECE Dept (United States)
Jung Hui Chien, NJIT ECE Dept (United States)


Published in SPIE Proceedings Vol. 1199:
Visual Communications and Image Processing IV
William A. Pearlman, Editor(s)

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