编码和解码方法以及对应设备
By introducing asymmetric splitting mode and context-based arithmetic coding into video coding, the problem of insufficient symmetric splitting in existing QTBT coding tools is solved, improving coding efficiency and flexibility, and making it suitable for video coding devices and methods.
CN115767104BActive Publication Date: 2026-07-17INTERDIGITAL CE PATENT HOLDINGS SAS
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- INTERDIGITAL CE PATENT HOLDINGS SAS
- Filing Date
- 2017-09-25
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
Existing video coding technologies lack flexibility in block processing, especially the Quadtree Plus Binary Tree Coding Tool (QTBT), which only allows symmetrical splitting, resulting in insufficient coding efficiency.
Method used
An asymmetric splitting pattern is introduced, which splits a block into at least two sub-blocks by determining the asymmetric splitting method of the block in the splitting pattern set, and uses context-based arithmetic coding to decode or encode the asymmetric splitting pattern during the decoding and encoding process.
Benefits of technology
It improves the flexibility and efficiency of video coding, and can better match the structure and discontinuities in video signals, thereby improving compression performance.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN115767104B_ABST
Abstract
公开了一种对图像的块进行解码的解码方法，其包括：‑在分裂模式集合中确定用于所述块的分裂模式；‑响应于所述分裂模式，将所述块分裂成至少两个子块；‑对至少两个子块中的每个子块进行解码；其中所述分裂模式集合包括用于将所述块不对称分裂成至少两个子块的至少一个分裂模式。
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