基于区域像素亮度分析的HDR技术质量客观评价方法研究  

Research on Objective Evaluation Method of HDR Technology Based on Regional Pixel Luminance Analysis

作　　者：罗威 Luo Wei(China International Television Corporation,Beijing 100859,China)

机构地区：[1]中国国际电视总公司,北京100859

出　　处：《广播与电视技术》2023年第3期26-31,共6页Radio & TV Broadcast Engineering

摘　　要：在中央广播电视总台4K/8K超高清电视节目制播技术要求中,HDR(高动态范围)采用HLG标准/1000nit(GY/T315-2018)是4K/8K电视节目制作的必要选项。目前,对HDR技术参数的审核大多采用专业监视器主观评价方式,如何客观评价电视节目HDR技术质量是一个空白。本文根据HLG映射函数原理,提出了通过图像区域像素亮度分析的方法,对HDR技术质量进行客观分析。In the technical requirements of 4K/8K UHD TV program production and broadcasting of China Central Radio and Television Corporation,HDR(high dynamic range)adopts HLG standard/1000Nit(GY/T 315-2018),which is a necessary option for 4K/8K TV program production.At present,most HDR technical parameters are reviewed by subjective evaluation of professional monitors.How to objectively evaluate the HDR technology quality of TV programs is a blank.Based on the principle of HLG mapping function,this paper puts forward a method to objectively analyze the quality of HDR technology by analyzing the pixel brightness of the image region.

关 键 词：HDR(高动态范围) HLG(混合对数伽玛) 客观分析 

分 类 号：TN94[电子电信—信号与信息处理]