JPWO2020185910A5

JPWO2020185910A5 -

Info

Publication number: JPWO2020185910A5
Application number: JP2021553865A
Authority: JP
Publication date: 2023-03-22

Claims

determine that intra-subpartition (ISP) is enabled for the current block;
determine a subpartition width for the current block;
for a sub-partition in the current block, determine a corresponding prediction block based on the sub-partition width and a minimum prediction block width;
determining a reference sample for the prediction block;
A video decoding apparatus, comprising: a processor configured to decode the predictive block using the reference samples.

2. The video decoding apparatus according to claim 1, wherein said minimum predicted block width is 4 samples.

When the current block width is 4 samples and the current block height is 8 samples or more, or when the current block width is 8 samples and the current block height is 8 samples or more, the prediction block includes a plurality of transforms. 2. A video decoding apparatus as claimed in claim 1, comprising block sub-partitions.

3. When the current block is vertically divided and the current block width is 4 samples and the current block height is 8 samples or more, the prediction block is predicted using neighboring samples of the current block. The video decoding device according to item 1.

2. The video decoding apparatus of claim 1, wherein the prediction block is predicted using neighboring samples of the current block and samples from a reconstructed sub-partition of the current block.

When the current block width is 8 samples and the current block height is 8 samples or more, the prediction block uses neighboring samples of the current block and samples from the sub-partition being reconstructed in the current block. 2. The video decoding device of claim 1, wherein the video decoding is predicted.

2. The video decoding apparatus of claim 1, wherein the prediction block includes a transport block, the transport block includes the sub-partition, and the width of the transport block is the width of the sub-partition.

determining that intra-subpartition (ISP) is enabled for the current block;
determining a subpartition width for the current block;
determining a corresponding prediction block for a sub-partition in the current block based on the sub-partition width and a minimum prediction block width;
determining reference samples for the prediction block;
and decoding the predictive block using the reference samples.

9. The method of claim 8, wherein the minimum predicted block width is 4 samples.

When the current block width is 4 samples and the current block height is 8 samples or more, or when the current block width is 8 samples and the current block height is 8 samples or more, the prediction block includes a plurality of transforms. 9. The video decoding method of claim 8, comprising block sub-partitions.

determine that intra-subpartition (ISP) is enabled for the current block;
determine a subpartition width for the current block;
for a sub-partition in the current block, determine a corresponding prediction block based on the sub-partition width and a minimum prediction block width;
determining a reference sample for the prediction block;
A video encoding apparatus, comprising: a processor configured to encode the predictive block using the reference samples.

12. The video encoding apparatus of claim 11, wherein the minimum predicted block width is 4 samples.

When the current block width is 4 samples and the current block height is 8 samples or more, or when the current block width is 8 samples and the current block height is 8 samples or more, the prediction block includes a plurality of transforms. 12. A video encoding device according to claim 11, comprising block sub-partitions.

determining that intra-subpartition (ISP) is enabled for the current block;
determining a subpartition width for the current block;
determining a corresponding prediction block for a sub-partition in the current block based on the sub-partition width and a minimum prediction block width;
determining reference samples for the prediction block;
and encoding the predictive block using the reference samples.

4. The predictive block is encoded using neighboring samples of the current block when the current block is vertically divided and the current block width is 4 samples and the current block height is 8 samples or more. Item 15. The video encoding method according to Item 14.

15. The method of claim 14, wherein the predictive block is encoded using neighboring samples of the current block and samples from a reconstructed sub-partition of the current block.