PH NAL单元编码相关图像解码方法及其装置

By introducing PH NAL unit flag encoding and adaptive bit rate control into image decoding and encoding devices, the problem of high transmission and storage costs for high-resolution, high-quality images is solved, achieving more efficient image encoding.

CN115211121BActive Publication Date: 2026-07-17LG ELECTRONICS INC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
LG ELECTRONICS INC
Filing Date
2020-12-29
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The transmission and storage costs of high-resolution, high-quality images are high, necessitating efficient image compression technologies to reduce transmission and storage requirements.

Method used

By introducing flag encoding of PH NAL units into the image decoding method, the bit rate of the bit stream is adaptively adjusted to control the encoding efficiency of the NAL units. This includes adaptive decoding using an entropy decoder and predictor in the decoding device, and adaptive encoding using an entropy encoder and predictor in the encoding device.

Benefits of technology

Image coding efficiency has been improved by optimizing overall coding efficiency and reducing transmission and storage costs through adaptive bit rate control and NAL unit flag coding.

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Abstract

根据本文献的解码装置执行的图像解码方法通过包括以下步骤来表征：获取指示是否存在包括当前画面的画面头(PH)的PH网络抽象层(NAL)单元的标志；获取包括当前画面的当前切片的切片头和切片数据的视频编码层(VCL)NAL单元；基于标志获取PH；以及基于PH、切片头和切片数据对当前画面进行解码。
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