Video encoding / decoding method, apparatus, device, system, and storage medium
By combining a weight derivation mode with K prediction modes using a single index, the method addresses the inefficiencies in existing video encoding methods, reducing encoding cost and improving efficiency through simplified syntax and codeword savings.
JP2026086614APending Publication Date: 2026-05-26GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD
- Filing Date
- 2026-02-06
- Publication Date
- 2026-05-26
AI Technical Summary
Technical Problem
Existing video encoding methods require increased encoding cost due to the need to transmit more information when using multiple prediction modes for predicting current blocks, leading to inefficiencies in video compression.
Method used
A video encoding and decoding method that combines a weight derivation mode with K prediction modes, indicated by a single index, to simplify syntax and reduce unnecessary case judgments, thereby improving encoding efficiency.
Benefits of technology
This approach reduces encoding cost by simplifying syntax and saving codewords, enhancing overall encoding efficiency.
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Smart Images
Figure 2026086614000001_ABST
Abstract
The present invention provides a video encoding and decoding method, apparatus, device, system, and storage medium that reduce encoding costs when predicting the current block using multiple prediction modes. [Solution] The video decoding method specifies in the code stream a combination of the weight derivation mode used in the current block and K prediction modes. At this time, the decoding side decodes the code stream to obtain a first index, uses this first index to specify a first combination consisting of one weight derivation mode and K prediction modes, determines the first weight derivation mode and K first prediction modes included in the first combination based on this first index, and predicts the current block based on the first weight derivation mode and K first prediction modes to obtain the predicted value of the current block.
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