Patent ID: 11917152
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 7:
8. A coding device comprising one or more memories and one or more processors, the one or more memories comprising instructions that, when executed by the one or more processors, cause the one or more processors to perform:
receiving a video signal from a video capture device, the video signal including an image block;
generating a prediction block and a residual block to represent the image block;
selecting a transform algorithm for a spatial varying transform (SVT) based on a position of a block of the SVT relative to the residual block, wherein the SVT includes discrete sine transform version seven (DST-7) when the position of the SVT covers a bottom-right corner of the residual block, and wherein the SVT includes discrete cosine transform version eight (DCT-8) when the position of the SVT covers a top-left corner of the residual block;
converting the residual block into a transformed residual block using the SVT that was selected;
encoding an indication of a flag configured to indicate a type of the SVT into a bitstream, wherein the type of the SVT is a SVT vertical (SVT-V) type or a SVT horizontal (SVT-H) type;
encoding an indication of the position of the block of the SVT into the bitstream; and
encoding the prediction block and the transformed residual block into the bitstream for transmission to a decoder.