Patent ID: 11909987
Assignee: TENCENT AMERICA LLC
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 10:
11. A method for controlling block intra prediction for an encoder, comprising:
obtaining a video bitstream;
encoding the video bitstream with prediction information of a current coding unit (CU) in a segment of a current picture, comprising:
upon determining that the current CU belongs to a current Small Chroma Intra Prediction Unit (SCIPU) and a tree depth of the SCIPU is less than or equal to a threshold T2, and that the prediction type of the chroma CB is intra prediction, including the prediction type of the chroma CB in the prediction information, a SCIPU being a coding tree node whose chroma CB size is larger than or equal to TH chroma samples and has at least one child luma CB whose size is smaller than 4TH luma samples, and T2 being 1 or 2; and

outputting the encoded video bitstream, wherein a width of any reconstructed chroma CB intra-predicted from the encoded video bitstream is greater than 2.