Adaptive DPCM With Median Type Predictors

In this paper, we introduce an improved DPCM (Differential pulse Code Modulation) coding method that utilizes adaptive quantization and nonlinem (median type) predictors (Median Adaptive DPCM, MADPCM). DPCM is a promising coding method for television applications because of its simplicity and visual properties. The simulation results of the MADPCM coder obtained with the DVSR 100 digital video sequencer indicate that good picture quality can be achieved with a compression ratio of 2.7:1 (3 bits/pixel).

[1]  Yrjö Neuvo,et al.  Improving TV picture quality with linear-median type operations , 1988 .

[2]  Peter Pirsch.  Design of DPCM Quantizers for Video Signals Using Subjective Tests , 1981, IEEE Trans. Commun..

[3]  P. Pirsch,et al.  Advances in picture coding , 1985, Proceedings of the IEEE.

[4]  P. Pirsch.  Design of a DPCM codec for VLSI realization in CMOS technology , 1985, Proceedings of the IEEE.

[5]  T. Viero,et al.  Non-moving regions preserving median filters for image sequence filtering , 1991, IEEE 1991 International Conference on Systems Engineering.

[6]  D. E. Pearson,et al.  Predictive Coding of Composite NTSC Color Television Signals , 1982 .

[7]  H.J. Mattausch,et al.  Video chip set for data rate compression by filtering and DPCM coding , 1988, 1988., IEEE International Symposium on Circuits and Systems.