VIDEO ENCODING DEVICE, VIDEO DECODING DEVICE, VIDEO ENCODING METHOD, VIDEO DECODING METHOD, AND PROGRAM

摘要

A video encoding device that is capable of selecting, from a plurality of color spaces, the color space for a prediction error signal using coding blocks, said video encoding device comprising an adaptive chrominance quantization offset derivation means that derives a quantization offset for each color space, and an inverse-quantization means that inverse-quantizes a quantized coefficient video using the chrominance quantization offset for each of the color spaces that can be expressed in different dynamic ranges.