视频信号的编码方法和解码方法及其装置
By acquiring the intra-prediction mode of adjacent blocks and dividing the video signal block into sub-blocks for intra-prediction, the problem of increased data volume in high-definition video services is solved, and the encoding and decoding efficiency of video signals is improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD
- Filing Date
- 2019-10-11
- Publication Date
- 2026-07-17
AI Technical Summary
Existing video coding technologies face the problem of a significant increase in data volume in high-definition video services. HEVC's compression performance is gradually showing its limitations, and there is a need to improve the efficiency of video signal encoding and decoding.
By determining the reference sample line of the current block, the intra-prediction mode with the adjacent blocks is obtained, intra-prediction is performed using the candidate intra-prediction mode, and the coded block or transform block is divided into multiple sub-blocks. Transformation is performed only on some sub-blocks, the intra-prediction mode is shared, and the inverse transform is skipped.
It improves intra-frame prediction efficiency and encoding or decoding efficiency, thereby enhancing the compression performance of video signals.
Smart Images
Figure CN121750880B_ABST