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

Claim 12:
13. 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 segment has a dual tree structure indicating separate partitioning structures for luma and chroma components of the segment, and that the prediction type of the segment is intra prediction, including the prediction type of the segment and a variable MinCbLog2SizeC in the prediction information, the variable MinCbLog2SizeC indicating a binary logarithmic value of a minimum size of the chroma CB of the current CU; and

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