PrismQuant achieves near rate-distortion optimality for Gaussian-mixture sources by losslessly transmitting the mixture component label at H(C)/n bits per dimension and applying component-matched KLT plus scalar quantization, with vanishing gap to the genie-aided bound.
Nguyen, Marcel Worring, and Arnold W
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PrismQuant: Rate-Distortion-Optimal Vector Quantization for Gaussian-Mixture Sources
PrismQuant achieves near rate-distortion optimality for Gaussian-mixture sources by losslessly transmitting the mixture component label at H(C)/n bits per dimension and applying component-matched KLT plus scalar quantization, with vanishing gap to the genie-aided bound.