Prefiltering synthetic imagery by three-dimensional blurring

Timothy G. Sills

doi:10.1117/1.2185104

1 March 2006 Prefiltering synthetic imagery by three-dimensional blurring

Timothy G. Sills

Author Affiliations +

Optical Engineering, Vol. 45, Issue 3, 036404 (March 2006). https://doi.org/10.1117/1.2185104

Abstract

The standard antialiasing techniques within commercial graphics hardware are unsatisfactory for simulations involving targets at long ranges, e.g., that for imaging IR weapons. In this case, due to the presence of high-spatial-frequency components beyond the Nyquist frequency, the resulting scenes will contain aliasing and scintillation artifacts. Custom antialiasing techniques (that operate by supersampling) have been devised to deal with this; for example, zoom antialiasing and the corrected supersampling and scaling derivative. An alternative technique in which the target is prefiltered, shown to be equivalent to 3-D blurring of target objects at the vertex level, is described. An analysis of antialiasing performance is provided together with example imagery.

©(2006) Society of Photo-Optical Instrumentation Engineers (SPIE)

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Timothy G. Sills "Prefiltering synthetic imagery by three-dimensional blurring," Optical Engineering 45(3), 036404 (1 March 2006). https://doi.org/10.1117/1.2185104

Published: 1 March 2006

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KEYWORDS

3D image processing

Visualization

Strontium

3D acquisition

Infrared imaging

Optical engineering

Scintillation

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