PrismQuant: Rate-Distortion-Optimal Vector Quantization for Gaussian-Mixture Sources
arXiv:2605.15507v1 Announce Type: cross
Abstract: For a Gaussian source under mean-squared error (MSE), classical transform coding is rate–distortion (RD) optimal: the Karhunen–Loeve transform (KLT) diagonalizes the covariance, reverse waterfilling …