Pixel independence: Measuring spatial interactions on a CRT display
Pixel independence: Measuring spatial interactions on a CRT display
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DOI：
10.1163/156856897x00375
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发表时间：
1997-01-01
期刊：
影响因子：
--
通讯作者：
Pelli, DG
中科院分区：
文献类型：
--
作者：
Pelli, DG
仔细的CRT成像的标准工作假设是，通过点非线性(监视器的伽马函数，将屏幕亮度与输入电压相关联)，每个像素被独立地成像，然后被荧光粉上的束斑的点扩散函数模糊。不幸的是，大多数显示器没有足够的视频带宽、直流恢复和高压调节来满足这一理想模式。建议使用两种测试来评估CRT与像素无关模型的偏差。
The standard working assumption of careful CRT imaging is that each pixel is imaged independently, through a point nonlinearity (the monitor's gamma function, relating screen luminance to input voltage), and then blurred by the point-spread function of the beam spot on the phosphor. Unfortunately most monitors have inadequate video bandwidth, DC restoration, and high-voltage regulation to live up to this ideal model. Two tests are recommended for assessing a CRT's deviation from the pixel-independence model.