Using M-transformation to improve performance of DCT zonal coding

Yoshitaka Morikawa, Nobumoto Yamane, Hiroshi Hamada

Research output: Contribution to journalArticlepeer-review


The DCT zonal coding compares unfavorably with the DCT threshold coding, in respect of coding performances. This is due to quantization losses of the Max quantizer caused by long-tailed distributions of DCT coefficients. This paper proposes a method to compensate for the losses and to improve performances of the zonal coding, by applying M-transformation to the DCT coefficient sample sequences. Simulation results have shown the attained improvements remarkable.

Original languageEnglish
Pages (from-to)1450-1460
Number of pages11
JournalProceedings of SPIE - The International Society for Optical Engineering
Publication statusPublished - Nov 1 1989

ASJC Scopus subject areas

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


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