Intra-frame depth map block encoding and decoding methods, and apparatus
AssigneeHuawei Technologies Co., Ltd.
InventorsXu Chen, Xiaozhen Zheng
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Abstract
The present invention discloses an intra-frame depth map block decoding method, including: acquiring, from a bitstream, a depth modeling mode (DMM) used for a depth map block, wherein the DMM is applied to a recursive quadtree (RQT) coding or simplified depth coding (SDC); obtaining a block predicted value of a depth map subblock obtained through segmentation in the DMM according to the DMM; acquiring, from the bitstream, a block offset value of the depth map subblock, and residual information of each pixel in the depth map subblock; and obtaining a reconstruction value of each pixel in the depth map subblock according to the block predicted value, the block offset value and the residual information of each pixel in the depth map subblock.
Claims20
An intra-frame depth map block decoding method, comprising:
- acquiring, from a bitstream, a depth modeling mode (DMM) used for a depth map block, wherein the DMM is applied to recursive quadtree (RQT) coding or simplified depth coding (SDC);
- obtaining a depth map subblock through segmentation in the DMM;
- obtaining a block predicted value of the depth map subblock according to the DMM, wherein the block predicted value is obtained based on one or more depth map pixels adjacent to the depth map subblock;
- acquiring, from the bitstream, a block offset value of the depth map subblock, and a residual pixel value of the depth map subblock;
- and
- obtaining a reconstruction pixel value of the depth map subblock according to the block predicted value, the block offset value and the residual pixel value of the depth map subblock.
A decoding apparatus, comprising:
- a processor;
- and
- a memory coupled to the processor and storing instructions that when executed by the processor, cause the decoding apparatus to be configured to:
- acquire, from a bitstream, a depth modeling mode (DMM) used for a depth map block, wherein the DMM is applied to recursive quadtree (RQT) coding or simplified depth coding (SDC);
- obtain a depth map subblock through segmentation in the DMM;
- obtain a block predicted value of the depth map subblock according to the DMM, wherein the block predicted value is obtained based on one or more depth map pixels adjacent to the depth map subblock;
- acquire, from the bitstream, a block offset value of the depth map subblock, and a residual pixel value of the depth map subblock;
- and
- obtain a reconstruction pixel value of the depth map subblock according to the block predicted value, the block offset value and the residual pixel value of the depth map subblock.
A non-transitory computer-readable medium comprising computer-executable instructions that, when executed by a processor, cause a decoding apparatus to:
- acquire, from a bitstream, a depth modeling mode (DMM) used for a depth map block, wherein the DMM is applied to recursive quadtree (RQT) coding or simplified depth coding (SDC);
- obtain a depth map subblock through segmentation in the DMM;
- obtain a block predicted value of the depth map subblock according to the DMM, wherein the block predicted value is based on one or more depth map pixels adjacent to the depth map subblock;
- acquire, from the bitstream, a block offset value of the depth map subblock, and a residual pixel value of the depth map subblock;
- and
- obtain a reconstruction pixel value of each pixel in the depth map subblock according to the block predicted value, the block offset value and the residual pixel value of the depth map subblock.
Dependencies are inferred from the claim text.