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Spat Vis. 1997;10(4):443-6.

Pixel independence: measuring spatial interactions on a CRT display.

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Department of Psychology, New York University, NY 10003, USA.


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.

[Indexed for MEDLINE]

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