Patent ID: 11882278
Assignee: TENCENT AMERICA LLC
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 18:
19. A non-transitory computer readable medium having stored thereon a computer program for video coding, the computer program configured to cause one or more computer processors to:
receive video data;
determine a directionality of a sample block of the received video data by determining a sum of squared differences between the sample block and each of a plurality of target directional blocks and determining a directionality of a target directional block of the plurality of target directional blocks that has a minimum sum of squared differences as the directionality of the sample block;
apply a geometric transformation in which filter coefficients of a cross-component filter or reconstructed samples in a filter support region are rotated by a first amount based on the directionality being a first direction and rotated by a second amount based on the directionality being a second direction different from the first direction; and
decode the video data based on the applied geometric transformation.