Adaptive one dimensional dct-vq for motion compensated video coding

Ali N. Akansu, Jung H. Chien

Research output: Contribution to journalArticlepeer-review


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 languageEnglish (US)
Pages (from-to)496-503
Number of pages8
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - 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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