Encoding method, decoding method, encoders, decoders and storage medium
By pre-establishing the correspondence between the shape and/or size of the current block and the combinations allowed to be used in the video encoding and decoding, the problem of more encoding time consumption in the prior art is solved, and a more efficient encoding process is achieved.
WO2025059901A1 Publication Date: 2025-03-27GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD
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Patent Information
- Application Number
- PCT/CN2023/119981
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-09-20
- Publication Date
- 2025-03-27
AI Technical Summary
Technical Problem
The existing intra prediction method based on interpolation filtering consumes a lot of encoding time, resulting in low efficiency.
Method used
By pre-establishing the correspondence between the shape and/or size of the current block and the combinations that are allowed to be used, the number of combinations allowed to be used by the current block is limited, thereby reducing encoding time.
Benefits of technology
It effectively saves encoding time, while maintains encoding and decoding performance, reducing the encoding time complexity.
✦ Generated by Eureka AI based on patent content.
Abstract
Provided in the embodiments of the present application are an encoding method, a decoding method, encoders, decoders and a storage medium. The decoding method comprises: analyzing a code stream to determine first identification information and index information corresponding to a current block, the first identification information being used for indicating that a prediction mode of the current block is an interpolation filtering-based intra prediction mode; on the basis of the index information, determining a target combination from combinations allowed to be used by the current block, the combinations allowed to be used by the current block comprising at least one combination, each combination corresponding to a reconstruction area of one type and an interpolation filter shape, the reconstruction area being used for acquiring an interpolation filtering coefficient, and the combinations allowed to be used by the current block corresponding to the shape and / or size of the current block; on the basis of the target combination, determining an interpolation filtering coefficient; and, on the basis of the interpolation filtering coefficient, performing interpolation filtering-based intra prediction on the current block.
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