Prediction method for current block and electronic device
AssigneeGuangdong Oppo Mobile Telecommunications Corp., Ltd.
InventorsFan Liang, Jian Cao
Life of this patent
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Abstract
A prediction method for a current block and an electronic device are provided, where the method includes the following. Mode information of an intra block copy-mirror mode is obtained when in a non-merge mode of intra block copy. Determine whether to perform mirror transform on a reference block according to the mode information. A prediction block of the current block is obtained by performing mirror transform on the reference block when a determination result is performing mirror transform on the reference block.
Claims20
A method of predicting a current block for a video encoder, the method comprising:
- obtaining mode information of an intra block copy-minor mode when in a non-merge mode of intra block copy;
- determining whether to perform minor transform on a reference block according to the mode information;
- and
- obtaining a prediction block of the current block by performing mirror transform on the reference block when a determination result is performing mirror transform on the reference block.
A method of predicting a current block for a video decoder, the method comprising:
- parsing a bitstream to obtain mode information of an intra block copy-mirror mode when in a non-merge mode of intra block copy;
- determining whether to perform minor transform on a reference block according to the mode information;
- and
- constructing a prediction block of the current block by performing minor transform on the reference block, when a determination result is performing mirror transform on the reference block.
An electronic device, 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:
- parse a bitstream to obtain mode information of an intra block copy-minor mode when in a non-merge mode of intra block copy;
- determine whether to perform mirror transform on a reference block according to the mode information;
- and
- construct a prediction block of a current block by performing minor transform on the reference block, when a determination result is performing mirror transform on the reference block.
Dependencies are inferred from the claim text.