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Towards a metric of antialiasing sufficiency for stereoscopic displays

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Title Towards a metric of antialiasing sufficiency for stereoscopic displays
Title of Series Stereoscopic Displays and Applications XXIV (SD&A 2013)
Part Number 24
Number of Parts 36
Author Lloyd, Charles J.
License CC Attribution - NoDerivatives 2.0 UK: England & Wales:
You are free to use, copy, distribute and transmit the work or content in unchanged form for any legal purpose as long as the work is attributed to the author in the manner specified by the author or licensor.
DOI 10.5446/30605
Publisher IS&T Electronic Imaging (EI) Symposium
Release Date 2013
Language English

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Subject Area Information technology
Abstract This paper describes the development, measurement, computation, and initial testing of a metric of antialiasing sufficiency for stereoscopic display systems. A summary is provided of two previous evaluations that demonstrated stereoscopic disparity thresholds in the range of 3 to 10 arcsec are attainable using electronic displays with a pixel pitch as coarse as 2.5 arcmin, however, only if sufficient antialiasing is performed. Equations are provided that describe the critical level of antialiasing required as a function of pixel pitch. The proposed metric uses a radial test pattern that can be photographed from the user eyepoint using a hand held consumer color camera. Several candidate unitary metrics that quantify the spatial sampling noise in the measured test pattern were tested. The correlation obtained between the best candidate metric and the stereoscopic disparity threshold model from our previous paper was R2 = 0.994. The standard deviation of repeated measurements with a hand held camera was less than 0.5% of the range of the metric, indicating the metric is capable of discriminating fine differences in sampling noise. The proposed method is display technology independent and requires no knowledge of the display pixel structure or how the antialiasing is implemented. © (2013) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE).

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