Using M-transformation to improve performance of DCT zonal coding

Yoshitaka Morikawa, Nobumoto Yamane, Hiroshi Hamada

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


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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