Pixel independence

Measuring spatial interactions on a CRT display

Research output: Contribution to journalArticle

Abstract

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
Volume10
Issue number4
StatePublished - 1997

Fingerprint

Cathode ray tubes
Pixels
Display devices
Optical transfer function
Voltage control
Phosphors
Restoration
Luminance
Bandwidth
Imaging techniques
Electric potential

ASJC Scopus subject areas

  • Biophysics
  • Computer Vision and Pattern Recognition
  • Psychology(all)

Cite this

Pixel independence : Measuring spatial interactions on a CRT display. / Pelli, Denis G.

In: Spatial Vision, Vol. 10, No. 4, 1997, p. 443-446.

Research output: Contribution to journalArticle

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