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Correction of pixel ratio and its application in the generation of definition test pattern
Author(s): 
Pages: 91-93
Year: Issue:  12
Journal: TV ENGINEERING

Keyword:  图像清晰度测试图像素宽高比比例校正;
Abstract: 针对按计算机方像素生成的图案显示在非方像素显示系统时出现几何失真,提出了基于像素宽高比(PAR)的比例校正算法,并用于建立屏幕虚拟几何中心、计算参数K和导出水平或垂直最高空间分辨率与参数ρ0的关系,从而优化了电视图像清晰度测试图生成算法.实验表明,据此能精确生成多种标准、不同格式的电视测试信号、图、卡和运动序列.
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