Video encoding method, decoding method, video transmission method, and electronic device

By differentially encoding key frames and non-key frames in the video and using visual representation information to generate a compressed video bitstream, the problem of video distortion caused by error accumulation is solved, achieving low bitrate, high-efficiency transmission and high-quality reconstruction.

CN122420541APending Publication Date: 2026-07-17ZHEJIANG TMALL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZHEJIANG TMALL TECH CO LTD
Filing Date
2026-03-18
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing video coding technologies, error accumulation leads to poor video quality after decoding, especially when the prediction residual quantization is large, resulting in serious distortion of the decoded video. In addition, the coding bitrate is high, which consumes a lot of bandwidth resources.

Method used

By identifying keyframes and non-keyframes in the video, visual representation information of non-keyframes is obtained, and keyframes and visual representation information are compressed and encoded separately to generate a compressed video stream containing keyframe bitstreams and non-keyframe visual representation bitstreams.

Benefits of technology

It significantly reduces the encoding bitrate, reduces the bandwidth consumption of video transmission, improves video transmission efficiency, and effectively alleviates the distortion problem caused by error accumulation, ensuring the quality of the decoded video.

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Abstract

本申请公开了一种视频编码方法包括:确定待编码视频中的关键帧和非关键帧;确定非关键帧对应的视觉表征信息;对关键帧进行压缩编码得到关键帧码流,对视觉表征信息进行压缩编码得到视觉表征码流,从而得到待编码视频对应的压缩码流。提供了一种解码方法包括:获取关键帧码流和非关键帧对应的视觉表征码流;对关键帧码流和视觉表征码流进行解码,得到各非关键帧分别对应的视觉表征信息以及各关键帧;基于各非关键帧对应的视觉表征信息以及各关键帧,生成各非关键帧。本申请提供的方案既能保证较低编码码率,减少视频传输所占的带宽资源,保证视频传播效率,又能有效提升解码后视频的质量,缓解传统编码方式中误差累积导致的失真问题。
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