Optimal quantization by matrix searching

作者: Xiaolin Wu

DOI: 10.1016/0196-6774(91)90039-2

关键词:

摘要: Abstract Optimal quantization, a fundamental problem in source coding and information theory, can be formulated as discrete optimization problem. In 1964 Bruce (“Optimum Quantization,” Sc.D. thesis, MIT, May 1964) devised dynamic programming algorithm for optimal quantization. For the mean-square error measure when amplitude density function of quantized signal is represented by histogram N points, Bruce's compute K-level quantizer O(KN2) time. This paper shows that same solved O(KN) The improvement made better understanding objective this particular non-linear use Aggarwal et al.'s matrix-searching technique.

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