在PWL变换频谱域的标量量化

Conference Proceedings 2000 International Conference on Mathematical Methods in Electromagnetic Theory (Cat. No.00EX413) Pub Date : 2000-09-12 DOI:10.1109/MMET.2000.888560

R. Baran, D. Wiraszka, W. Dziech

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引用次数: 8

摘要

提出了利用周期沃尔什分段线性(PWL)变换和PWL谱的最优标量量化进行图像压缩的问题。还包括对PWL转换的简短描述。给出了最优Lloyd-Max量化方法。所提出的压缩方法的过程是基于对代表图像块的一类标量变量的量化。对压缩方法的有效性进行了检验，并给出了压缩结果的可视化表示。

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Scalar quantization in the PWL transform spectrum domain

The problem of image compression using the PWL (periodic Walsh piecewise-linear) transform and optimal scalar quantization of the PWL spectrum is presented. A short description of the PWL transform is included. Optimal Lloyd-Max quantization is also presented. The procedure of the presented compression method is based on quantization of a class of scalar variables representing blocks of the image. The effectiveness of the compression method is examined and a visual representation of the results is included.

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Conference Proceedings 2000 International Conference on Mathematical Methods in Electromagnetic Theory (Cat. No.00EX413)

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