Patent ID: 11889031
Assignee: NIPPON HOSO KYOKAI
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An encoding device that encodes each encoding-target block generated by dividing an image that includes three or more components including a first component, a second component, and a third component, the encoding device comprising:
a predictor configured to generate, for each of the components, a prediction block corresponding to the encoding-target block;
a residual generator configured to generate, for each of the components, a prediction residual that represents a difference between the encoding-target block and the prediction block;
a color space transformer configured to perform a color space transform process on the prediction residual of each of the components;
a transformer configured to generate transform coefficients by performing a transform process on the prediction residual;
a quantization controller configured to determine a scaling list to be used in a quantization process on the transform coefficients;
a quantizer configured to perform the quantization process on the transform coefficients by using the determined scaling list; and
an entropy encoder configured to output a sequence parameter set including information indicating whether or not operation of determining the scaling list based on the color space transform process is performed.