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

Pixel independence: measuring spatial interactions on a CRT display.

Author information

1
Department of Psychology, New York University, NY 10003, USA. denis@psych.nyu.edu

Abstract

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.

PMID:
9176954
[Indexed for MEDLINE]

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