Optimum quantization for subband coders

Luc Vandendorpe; Benoit M. M. Macq

doi:10.1117/12.24278

1 September 1990 Optimum quantization for subband coders

Luc Vandendorpe, Benoit M. M. Macq

Proceedings Volume 1360, Visual Communications and Image Processing '90: Fifth in a Series; (1990) https://doi.org/10.1117/12.24278
Event: Visual Communications and Image Processing '90, 1990, Lausanne, Switzerland

Abstract

Subband Coding of images, which can be seen as an extension of orthogonal transformations, has been introduced by Woods and O’Neil [8]. In [8], the subbands are further encoded by DPCM. In this study, it is proposed to use subband coding as a stand alone coding technique. The emphasis is put on the question of subband quantization. A methology is proposed where the quantization step of the subbands is taken so as to minimize a quantization noise power weighted by a sensitivity function of the eye.

Citation Download Citation

Luc Vandendorpe and Benoit M. M. Macq "Optimum quantization for subband coders", Proc. SPIE 1360, Visual Communications and Image Processing '90: Fifth in a Series, (1 September 1990); https://doi.org/10.1117/12.24278

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