Using M-Transformation to Improve Performance of DCT Zonal Coding

Yoshitaka Morikawa; Nobumoto Yamane; Hiroshi Hamada

doi:10.1117/12.970153

1 November 1989 Using M-Transformation to Improve Performance of DCT Zonal Coding

Yoshitaka Morikawa, Nobumoto Yamane, Hiroshi Hamada

Proceedings Volume 1199, Visual Communications and Image Processing IV; (1989) https://doi.org/10.1117/12.970153
Event: 1989 Symposium on Visual Communications, Image Processing, and Intelligent Robotics Systems, 1989, Philadelphia, PA, United States

Abstract

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.

Citation Download Citation

Yoshitaka Morikawa, Nobumoto Yamane, and Hiroshi Hamada "Using M-Transformation to Improve Performance of DCT Zonal Coding", Proc. SPIE 1199, Visual Communications and Image Processing IV, (1 November 1989); https://doi.org/10.1117/12.970153

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