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Quantizing for maximum output entropy (Corresp.)

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1 Author(s)

The entropy at the output of a quantizer is equal to the average mutual information between unquantized and quantized random variables. Thus, for a fixed number of quantization levels, output entropy is a reasonable information-theoretic criterion of quantizer fidelity. It is shown that, for a class of signal distributions, which includes the Gaussian, the quantizers with maximum output entropy (MOE) and minimum average error (MAE) are approximately the same within a multiplicative constant.

Published in:

Information Theory, IEEE Transactions on  (Volume:17 ,  Issue: 5 )

Date of Publication:

Sep 1971

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