超高清晰度电视系统视频参数计算和选择  

Calculation and Selection of Video Parameters for Ultra High Definition Television System

作　　者：李桂苓[1] 李彦[1,2] 徐岩[1] 

机构地区：[1]天津大学电子信息工程学院,天津300072 [2]天津师范大学电子与通信工程学院,天津300387

出　　处：《电视技术》2014年第18期87-91,95,共6页Video Engineering

摘　　要：讨论了超高清晰度电视系统(UHDTV)视频参数的选定原则,由分析、计算中国SDTV和HDTV系统图像格式、扫描特性、色度参数以及信号格式等视频参数,引申到如何考虑和计算UHDTV系统的相应参数。较系统地说明了计算和选定这些参数所涉及的多种因素及对这些因素的权衡,并参考相关国际UHDTV标准,计算并给出了可供中国在选定UHDTV系统视频参数中参考的数值。为便于比较和选择,有的参数还给出了数种可选方案。由于选定UHDTV系统视频参数涉及诸多方面,可有多种选择,所以需要反复、多方论证,希望对此有一定的参考意义。The principles of selection of UHDTV system video parameters are discussed in this paper. Then the video parameters of China SDTV and HDTV systems, such as image characteristics, picture scanning characteristics, chromaticity parameters and signal format et al, are analyzed and calculated. The calculation of UHDTV system parameters is further presented. Various factors related to the determination of these parameters and how to balance them are systematically explained in this paper. Based on the international UHDTV standards, the reference values of the studio video parameters for China UHDTV systems have been calculated and decided. For convenience of comparison and selection, several possible values are given for some parameters. As UHDTV system video parameters are related to various factors, and may have a number of options, the selection therefore needs to be carefully considered. A valuable reference is provided for parameter calculation and selection above.

关 键 词：SDTV HDTV UHDTV 视频参数 

分 类 号：TN941[电子电信—信号与信息处理]