Prediction methods, apparatus, devices, systems, and storage media

By determining the weight derivation mode for video blocks using initial prediction modes, the method reduces coding costs and maintains encoding efficiency by eliminating the need to transmit mode indices in the bitstream.

JP7869316B2Active Publication Date: 2026-06-02GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD
Filing Date
2022-04-12
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing video encoding technologies face increased coding costs due to the need to transmit mode information for predicting current blocks, leading to inefficient use of encoding resources.

Method used

Determine the weight derivation mode for the current block based on K initial prediction modes, allowing the decoding side to derive the mode without transmitting the index in the bitstream, thereby reducing coding costs.

Benefits of technology

This approach reduces coding costs by eliminating the need to transmit mode indices, enhancing encoding efficiency and maintaining consistency between encoding and decoding sides.

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Abstract

In this application, a prediction method and apparatus, a device, a system and a storage medium are provided. In this application, the weight derivation mode of the current block is determined according to K initial prediction modes, so that the weight derivation mode determination method is enriched. In addition, the encoding side of this application does not need to transmit the index of the weight derivation mode in the bitstream, and the decoding side can determine the weight derivation mode of the current block according to K initial prediction modes, thereby saving codewords and reducing coding cost.
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