Method and Apparatus for Encoding and Decoding Region Enhancement Layer
AssigneeHuawei Technologies Co., Ltd.
InventorsJue Mao, Yin Zhao, Haitao Yang, Lian Zhang
Life of this patent
Estimating the term…
Abstract
A method for encoding the region enhancement layer includes obtaining reconstructed pixels of a base layer of a target region; inputting the reconstructed pixels into a correction network to obtain correction information of the target region; inputting the correction information and original pixels of the target region into an encoding network to obtain a residual feature map of an enhancement layer of the target region; and encoding the residual feature map to obtain an enhancement layer bitstream of the target region.
Claims21
A method for decoding a region enhancement layer and comprising:
- obtaining first reconstructed pixels of a first base layer of only a target region of a plurality of regions in a reconstructed image;
- inputting the first reconstructed pixels into a correction network to obtain correction information of the target region;
- obtaining an enhancement layer bitstream of the target region;
- decoding the enhancement layer bitstream to obtain a residual feature map of an enhancement layer of the target region;
- and
- inputting the residual feature map and the correction information into a decoding network to obtain second reconstructed pixels of the enhancement layer.
A decoder comprising:
- a memory configured to store instructions;
- and
- one or more processors coupled to the memory and configured to execute the instructions to cause the decoder to:
- obtain first reconstructed pixels of a base layer of only a target region of a plurality of regions in a reconstructed image;
- input the first reconstructed pixels into a correction network to obtain correction information of the target region;
- obtain an enhancement layer bitstream of the target region;
- decode the enhancement layer bitstream to obtain a residual feature map of an enhancement layer of the target region;
- and
- input the residual feature map and the correction information into a decoding network to obtain second reconstructed pixels of the enhancement layer.
(canceled)
A computer program product comprising computer-executable instructions that are stored on a non-transitory computer-readable storage medium and that, when executed by one or more processors, cause an apparatus to:
- obtain first reconstructed pixels of a base layer of only a target region of a plurality of regions in a reconstructed image;
- input the first reconstructed pixels into a correction network to obtain correction information of the target region;
- obtain an enhancement layer bitstream of the target region;
- decode the enhancement layer bitstream to obtain a residual feature map of an enhancement layer of the target region;
- and
- input the residual feature map and the correction information into a decoding network to obtain second reconstructed pixels of the enhancement layer.
Dependencies are inferred from the claim text.