ADAPTIVE COLOR SPACE TRANSFORM CODING

摘要

An encoder system may include an analyzer that analyzes a current image area in an input video to select a transform. A selectable residue transformer, controlled by the analyzer, may perform the selectable transform on a residue image generated from the current image area and a predicted current image area, to generate a transformed residue image. An encoder may encode the transformed residue image to generate output data. The analyzer controls the encoder to encode information to identify the selectable transform and to indicate that the selectable transform for the current image area is different from a transform of a previous image area of the input video. A decoder system may include components appropriate for decoding the output data from the encoder system.

主权项

1. A system comprising:
an analyzer that analyzes a current image area in an input video to select a transform; a selectable residue transformer, controlled by the analyzer, to perform the selectable transform on a residue image generated from the current image area and a predicted current image area, to generate a transformed residue image; and an encoder that encodes the transformed residue image to generate output data, wherein the analyzer controls the encoder to encode information to identify the selectable transform and to indicate that the selectable transform for the current image area is different from a transform of a previous image area of the input video, one color component of the transformed residue image is generated based upon only one color component of the residue image, and other color components of the transformed residue image are generated based upon more than one color components of the residue image.