SDR节目上变换到HDR的创新实践  

Innovation on Conversion of SDR Program to HDR Program

作　　者：罗映辉 Luo Yinghui(Guangdong Radio and TV Station,Guangdong 510066,China)

机构地区：[1]广东广播电视台

出　　处：《广播与电视技术》2019年第7期50-54,共5页Radio & TV Broadcast Engineering

摘　　要：在广东广播电视台进行4K超高清播出试验阶段,SDR(标准动态范围)节目上变换到HDR(高动态范围)节目时出现了图像视觉呈现问题。本文提出了输出端转换法的SDR节目上变换思路,推动了国产非编软件在SDR节目上变换的改良升级。In the 4K ultra HD broadcasting experiment of Guangdong Radio and TV Station,the visual presentation problem occurred when SDR(standard dynamic range)program is converted into HDR(high dynamic range)program.In this paper,the idea of SDR program conversion based on the output conversion method is proposed,which improves and upgrades the SDR program conversion in the domestic non-linear edition software.

关 键 词：4K超高清 标准动态范围 高动态范围 电光转换 光电转换 HLG(Hybrid LOG Gamma) 输入端转换法 输出端转换法 

分 类 号：TN94[电子电信—信号与信息处理]