Adaptive one dimensional dct-vq for motion compensated video coding

Ali N. Akansu; Jung H. Chien

doi:10.1117/12.970059

Adaptive one dimensional dct-vq for motion compensated video coding

Ali N. Akansu, Jung H. Chien

Electrical and Computer Engineering

Research output: Contribution to journal › Article › peer-review

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.

Original language	English (US)
Pages (from-to)	496-503
Number of pages	8
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	1199
DOIs	https://doi.org/10.1117/12.970059
State	Published - Nov 1 1989

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

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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.",

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AB - 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.

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Adaptive one dimensional dct-vq for motion compensated video coding

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