Video decoding method, video encoding method, and video decoder
AssigneeGuangdong Oppo Mobile Telecommunications Corp., Ltd.
InventorZhenyu Dai
Life of this patent
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Abstract
Embodiments of the present disclosure provide video decoding method, a video encoding method, and a video decoder. A decoding end operates as follows. A bitstream is decoded and a reconstructed block of a current block is determined. The bitstream is decoded and a first quantization parameter (QP) of the current block is determined, where the first QP is determined based on a second QP predicted through a QP prediction model. The reconstructed block of the current block is filtered with a neural network-based filter according to the first QP, to obtain a filtered reconstructed block.
Claims20
A video decoding method, comprising:
- decoding a bitstream and determining a reconstructed block of a current block;
- decoding the bitstream and determining a first quantization parameter (QP) of the current block, wherein the first QP is determined based on a second QP predicted through a QP prediction model;
- and
- filtering, according to the first QP, the reconstructed block of the current block with a neural network-based filter, to obtain a filtered reconstructed block.
A video encoding method, comprising:
- reconstructing a current block to obtain a reconstructed block of the current block;
- predicting a second quantization parameter (QP) of the current block through a QP prediction model;
- determining a first QP of the current block according to the second QP;
- and
- filtering, according to the first QP, the reconstructed block of the current block with a neural network-based filter, to obtain a filtered reconstructed block.
A video decoder, comprising:
- at least one processor;
- and
- a memory coupled to the at least one processor and storing at least one computer executable instruction thereon which, when executed by the at least one processor, causes the at least one processor to:
- decode a bitstream and determine a reconstructed block of a current block;
- decode the bitstream and determine a first quantization parameter (QP) of the current block, wherein the first QP is determined based on a second QP predicted through a QP prediction model;
- and
- filter, according to the first QP, the reconstructed block of the current block with a neural network-based filter, to obtain a filtered reconstructed block.
Dependencies are inferred from the claim text.