Pixel size determination of a monitor using moiré fringe

Mohammad Reza Abolhassani Sr.

doi:10.1117/1.3365949

1 March 2010 Pixel size determination of a monitor using moiré fringe

Mohammad Reza Abolhassani Sr.

Author Affiliations +

Optical Engineering, Vol. 49, Issue 3, 033608 (March 2010). https://doi.org/10.1117/1.3365949

Abstract

Displaying of images on monitors actually samples them. When a sinusoidal image is displayed on a monitor, a frequency that is much smaller than the frequency of the original image might be seen, which appears as a moiré fringe. Characteristics of this fringe depend on the geometry of the monitor's pixel lattice and the frequency of the displayed image. By changing the image frequency, one can access a moiré fringe of infinite period. In this situation, there is a simple relation between the image period and the monitor's pixel period. The estimated error in determining the number of the pixels of a monitor is a small fraction of 1 pixel.

©(2010) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Mohammad Reza Abolhassani Sr. "Pixel size determination of a monitor using moiré fringe," Optical Engineering 49(3), 033608 (1 March 2010). https://doi.org/10.1117/1.3365949

Published: 1 March 2010

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