Method and apparatus for converting subblock conversion information into a signal.

Abstract

This disclosure provides an apparatus and method for signaling subblock transform (SBT) information. [Solution] SBT information is used to encode video data. According to a particular disclosed embodiment, an exemplary method includes signaling a first flag in the sequence parameter set (SPS) of a video sequence indicating whether or not subblock transforms (SBTs) are enabled, and signaling a second flag indicating the maximum transform block (TB) size that allows SBTs. The maximum coding unit (CU) size that allows SBTs is determined directly on the maximum TB size in response to the first flag indicating that SBTs are enabled.

Claims

1. In the sequence parameter set (SPS) of a video sequence, a first flag indicating whether or not subblock transformation (SBT) is enabled is signaled, A second flag indicating the maximum conversion block (TB) size that allows the aforementioned SBT is signaled, Includes, A video processing method in which the maximum coding unit (CU) size that allows the SBT is determined directly on the maximum TB size in response to the first flag indicating that the SBT is enabled.

2. The method according to claim 1, wherein the maximum CU size that allows the SBT is the maximum CU width or the maximum CU height.

3. The method according to claim 1, wherein the maximum CU size that allows the SBT is determined to be equal to the maximum TB size.

4. The method according to claim 1, wherein the maximum TB size is 32 or 64.

5. The method according to claim 4, further comprising setting the value of the second flag to 0 in response to the maximum TB size being 32.

6. The method according to claim 4, further comprising setting the value of the second flag to 1 in response to the maximum TB size being 64.

7. An image processing device, At least one memory for storing instructions, A system comprising at least one processor, wherein the at least one processor executes the instruction, In the sequence parameter set (SPS) of a video sequence, a first flag indicating whether or not subblock transformation (SBT) is enabled is signaled, A second flag indicating the maximum conversion block (TB) size that allows the aforementioned SBT is signaled, The device is made to perform the above action. A video processing device in which the maximum coding unit (CU) size that allows the SBT is determined directly on the maximum TB size in response to the first flag indicating that the SBT is enabled.

8. The apparatus according to claim 7, wherein the maximum CU size that allows the SBT is the maximum CU width or the maximum CU height.

9. The apparatus according to claim 7, wherein the maximum CU size that allows the SBT is determined to be equal to the maximum TB size.

10. The apparatus according to claim 7, wherein the maximum TB size is 32 or 64.

11. The at least one processor further executes the instruction, The apparatus according to claim 10, wherein the apparatus is instructed to set the value of the second flag to 0 in response to the maximum TB size being 32.

12. The at least one processor further executes the instruction, The apparatus according to claim 10, wherein the apparatus is instructed to set the value of the second flag to 1 in response to the maximum TB size being 64.

13. A non-temporary computer-readable storage medium for storing an instruction set, wherein the instruction set is executable by at least one processor to cause a computer to perform a video processing method, and the video processing method is In the sequence parameter set (SPS) of a video sequence, a first flag indicating whether or not subblock transformation (SBT) is enabled is signaled, A second flag indicating the maximum conversion block (TB) size that allows the aforementioned SBT is signaled, Includes, A non-temporary computer-readable storage medium in which the maximum coding unit (CU) size that allows the SBT is determined directly on the maximum TB size in response to the first flag indicating that the SBT is enabled.

14. The non-temporary computer-readable storage medium according to claim 13, wherein the maximum CU size that allows the SBT is the maximum CU width or the maximum CU height.

15. The non-temporary computer-readable storage medium according to claim 13, wherein the maximum CU size that allows the SBT is determined to be equal to the maximum TB size.

16. The non-temporary computer-readable storage medium according to claim 13, wherein the maximum TB size is 32 or 64.

17. The instruction set executable by the at least one processor is, The non-temporary computer-readable storage medium according to claim 16, wherein the computer is further instructed to set the value of the second flag to 0 in response to the maximum TB size being 32.

18. The instruction set executable by the at least one processor is, The non-temporary computer-readable storage medium according to claim 16, further causing the computer to set the value of the second flag to 1 in response to the maximum TB size being 64.

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