Adaptive colour transform related signalling for both of CU level and TU level
AssigneeTencent America LLC
InventorsLien-Fei Chen, Xiang Li, Shan Liu
Life of this patent
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Abstract
There is included a method and apparatus comprising computer code configured to cause a processor or processors to perform obtaining video data, obtaining a coding unit (CU) block, determining whether a flag of the CU block is set to a predetermined flag condition, determining whether a tree type of the CU block is set to a predetermined tree type, determining whether to signal an adaptive color transform (ACT) flag based on any of whether the flag of the CU block is set to the predetermined flag condition and whether the tree type of the CU block is set to the predetermined tree type, and coding the video data based on a whether the ACT flag is signaled.
Claims18
A method for video coding performed by at least one processor, the method comprising:
- obtaining video data;
- obtaining a coding unit (CU) block of the video data;
- determining whether a flag of the CU block is set to a predetermined flag condition;
- determining whether a tree type of the CU block is set to a predetermined tree type;
- determining whether to signal an adaptive color transform (ACT) flag based on both of whether the flag of the CU block is set to the predetermined flag condition and whether the tree type of the CU block is set to the predetermined tree type;
- and
- coding the video data based on a whether the ACT flag is signaled.
An apparatus for video coding performed by at least one processor, the apparatus comprising:
- at least one memory configured to store computer program code;
- at least one processor configured to access the computer program code and operate as instructed by the computer program code, the computer program code including:
- first obtaining code configured to cause the at least one processor to obtain video data;
- second obtaining code configured to cause the at least one processor to obtain a coding unit (CU) block of the video data;
- first determining code configured to cause the at least one processor to determine whether a flag of the CU block is set to a predetermined flag condition;
- second determining code configured to cause the at least one processor to determine whether a tree type of the CU block is set to a predetermined tree type;
- third determining code configured to cause the at least one processor to determine whether to signal an adaptive color transform (ACT) flag based on both of whether the flag of the CU block is set to the predetermined flag condition and whether the tree type of the CU block is set to the predetermined tree type;
- and
- coding code configured to cause the at least one processor to code the video data based on a whether the ACT flag is signaled.
A non-transitory computer readable medium storing a program causing a computer to execute a process, the process comprising:
- obtaining video data;
- obtaining a coding unit (CU) block;
- determining whether a flag of the CU block is set to a predetermined flag condition;
- determining whether a tree type of the CU block is set to a predetermined tree type;
- determining whether to signal an adaptive color transform (ACT) flag based on both of whether the flag of the CU block is set to the predetermined flag condition and whether the tree type of the CU block is set to the predetermined tree type;
- and
- coding the video data based on a whether the ACT flag is signaled.
Dependencies are inferred from the claim text.