视频编解码方法、装置、计算机可读介质及电子设备
By improving the derivative mode partitioning method, the coding block is divided into sub-blocks with side lengths that are powers of 2, which solves the problem of low video coding efficiency in the existing technology and achieves more efficient video coding.
CN120050424BActive Publication Date: 2026-07-17TENCENT TECHNOLOGY (SHENZHEN) CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- TENCENT TECHNOLOGY (SHENZHEN) CO LTD
- Filing Date
- 2020-12-03
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
In existing video coding standards, the derivative mode partitioning method results in the width or height of the prediction block being a power of 2 or higher, which affects video coding efficiency and increases hardware implementation complexity.
Method used
An improved derivative pattern partitioning method is adopted, which divides the prediction block in the coding block whose side length is not an integer power of 2 into two sub-blocks with side lengths of an integer power of 2, and decodes multiple sub-blocks according to the derivative pattern to generate a reconstructed image.
Benefits of technology
Without increasing hardware implementation costs, video coding efficiency is improved by using larger sub-blocks to enhance transformation efficiency.
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Figure CN120050424B_ABST
Abstract
本申请的实施例提供了一种视频编解码方法、装置、计算机可读介质及电子设备。该视频解码方法包括：获取视频图像帧对应的编码块及所述编码块所采用的衍生模式；根据所述衍生模式对应的目标划分方式对所述编码块中的多个子块进行解码处理，所述目标划分方式是从衍生模式的改进划分方式中选择出的，所述衍生模式的改进划分方式包括将所述编码块中边长为非2的整数次幂的预测块划分为2个边长为2的整数次幂的子块的划分方式；根据所述编码块所采用的衍生模式及以所述多个子块为单位进行解码处理得到的多个子系数块，生成重建图像。本申请实施例的技术方案可以有效提高视频编码效率。
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