数字电视显示图像的同心度、重显率和过扫描  

Concentricity, Reproduction Ratio and Overscanning of Digital TV Reproductive Pictures

作　　者：赵希[1] 李秀敏[1] 李桂苓[1] 

机构地区：[1]天津大学电子信息工程学院学院,天津300072

出　　处：《电视技术》2005年第12期84-85,88,共3页Video Engineering

摘　　要：讨论了数字电视显示图像的同心度、重显率和过扫描,描述了它们的测量方法,重点分析了它们之间的内在联系,以及用它们来衡量显示图像质量的优缺点。实测表明,正确调整和测定这些指标,对保证数字电视图像主观效果具有重要作用。In this paper, the concentricity, reproduction ratio and overscanning of reproduced digital TV pictures are discussed, and each measurement method is described. Their inherent relations are mainly analyzed, as well as their merits and defects when used to judge the quality of reproduced pictures. Practical test indicates that it is important to adjust and measure these parameters in the right way for ensuring the subjective effect of digital TV pictures.

关 键 词：数字电视 同心度 重显率 过扫描 

分 类 号：TN949.197[电子电信—信号与信息处理]