Video encoding / decoding method based on intra prediction, bitstream transmission method, and recording medium storing bitstream
The adaptive interpolation filter-based video encoding/decoding method improves efficiency and reduces memory usage, addressing the high-cost challenge of high-resolution video transmission and storage.
JP2026500796APending Publication Date: 2026-01-08LG ELECTRONICS INC
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Patent Information
- Application Number
- JP2025538832
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2023-01-04
- Filing Date
- 2024-01-03
- Publication Date
- 2026-01-08
AI Technical Summary
Technical Problem
The increasing demand for high-resolution, high-quality video has led to higher transmission and storage costs due to the increased amount of information, necessitating a more efficient video compression technique.
Method used
A video encoding/decoding method that adaptively determines an interpolation filter based on intra-frame prediction mode, using a 6-tab cubic filter for improved efficiency and reduced memory usage.
Benefits of technology
This method enhances encoding/decoding efficiency, reduces memory waste for interpolation filter coefficients, and enables effective transmission and storage of high-resolution video.
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Smart Images
Figure 2026500796000001_ABST
Abstract
A video encoding / decoding method and apparatus according to the present disclosure includes generating a residual block for a current block, generating a prediction block for the current block based on an intra prediction mode, and reconstructing the current block based on the residual block and the prediction block, wherein the prediction block is further generated based on an interpolation filter applied to reference samples, the interpolation filter being adaptively determined based on the intra prediction mode, and the interpolation filter may be determined to be a 6-tab cubic filter when the intra prediction mode is a Template-based Intra Mode Derivation (TIMD)-based directional intra prediction mode.
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