Patent ID: 11889079
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 8:
9. An encoding device, comprising:
a memory containing instructions;
one or more processors coupled to the memory, the one or more processors configured to implement the instructions to cause the encoding device to:
split a coding tree node into at least one coding node (CU) according to a split mode, wherein the split mode is one of quad tree (QT) split, triple tree (TT) split, or binary tree (BT) split, and wherein the TT split comprises vertical TT and horizontal TT, and the BT split comprises vertical BT and horizontal BT;
determine that the coding tree node is not allowed to use the BT split when a width or a height of the coding tree node is greater than a maximum BT Size (maxBTSize);
encode a syntax element related to the split mode into a bitstream;
determine the CU is not allowed to be predicted by intra prediction when:
the split mode of the coding tree node is the TT split and the width of the coding tree node or the height of the coding tree node is greater than a threshold;
the split mode of the coding tree node is the vertical BT and the width of the coding tree node is less than or equal to the threshold, and the height of the coding tree node is greater than the threshold; or
the split mode of the coding tree node is the horizontal BT and the height of the coding tree node is less than or equal to the threshold, and the width of the coding tree node is greater than the threshold; and

determine that a prediction mode flag is not encoded into the bitstream when the CU is not allowed to be predicted by intra prediction.