REVERSE QUANTIZATION METHOD, REVERSE QUANTIZATION DEVICE, AND PROGRAM

摘要

Disclosed is an inverse quantization method that reverse-quantizes multiple quantized values as a set, obtaining a set of multiple inverse-quantized values, said method being characterized in that the range of potential inverse-quantized values for each quantized value is obtained using at least a signal other than that of the aforementioned quantized value, and in that the set of preliminary inverse-quantized values for which the total variation norm is the minimum within the range of potential values for each inverse -quantized value is obtained as the aforementioned set of reverse-quantized values.