Pixel independence: Measuring spatial interactions on a CRT display

Research output: Contribution to journalArticlepeer-review


The standard working assumption of careful CRT imaging is that each pixel is imaged independently, through a point nonlmearity (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.

Original languageEnglish (US)
Pages (from-to)443-446
Number of pages4
JournalSpatial Vision
Issue number4
StatePublished - 1997

ASJC Scopus subject areas

  • Experimental and Cognitive Psychology
  • Computer Vision and Pattern Recognition


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