Temporal Adaptive Vector Quantization For Image Sequence Coding

Claude Labit; Jean-Pierre Marescq

doi:10.1117/12.941336

14 October 1987 Temporal Adaptive Vector Quantization For Image Sequence Coding

Claude Labit, Jean-Pierre Marescq

Proceedings Volume 0804, Advances in Image Processing; (1987) https://doi.org/10.1117/12.941336
Event: Fourth International Symposium on Optical and Optoelectronic Applied Sciences and Engineering, 1987, The Hague, Netherlands

Abstract

Vector quantization (Vq) provides us with an appropriate technique to obtain high compression ratios. However, for image sequence coding, vector quantizer has to design temporally stable codebooks of representative vectors and this constraint of temporal stability has to be solved with a minimal computational complexity. We propose a new coding scheme based on visual classification and temporal refreshment procedures which enable to design subjectively optimal codebooks for any kind of real broadcast image sequence. This contribution reports results of simulations about how such a classification may be introduced and evaluated and how vector quantizer may be refreshed. We obtain significantly better reconstruction quality for a given codebook size and investigate several available solutions to implement the codebook refreshment procedures.

Citation Download Citation

Claude Labit and Jean-Pierre Marescq "Temporal Adaptive Vector Quantization For Image Sequence Coding", Proc. SPIE 0804, Advances in Image Processing, (14 October 1987); https://doi.org/10.1117/12.941336

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