Title :
Elimination of ? Non-linear Luminance Effects for Digital Video Projection Phase Measuring Profilometers
Author :
Baker, M.J. ; Xi, J. ; Chicharo, J.F.
Author_Institution :
Univ. of Wollongong, Wollongong
Abstract :
In this paper we are concerned with the elimination of gamma related errors by employing a simple and direct approach, specifically, for phase measuring profilometry (PMP) methods. The harmonic structure of a gamma distorted fringe is investigated and the implications of j for the PMP algorithm is studied. The minimum requirements in terms of number of Steps for appropriate elimination of j related phase residuals is identified and verified via both simulation and practical experimentation.
Keywords :
gamma distribution; phase measurement; shape measurement; spatial light modulators; digital video projection; gamma distorted fringe; non-linear luminance effects; phase measuring profilometers; Application software; Cameras; Distortion measurement; Electric variables measurement; Electronic equipment testing; Optical interferometry; Phase measurement; Phase modulation; Portable media players; Signal processing algorithms; Defocus; Digital; Focusing; Fringe; Gamma; Harmonics; Non-linear Luminance; PMP; Profilometry;
Conference_Titel :
Electronic Design, Test and Applications, 2008. DELTA 2008. 4th IEEE International Symposium on
Conference_Location :
Hong Kong
Print_ISBN :
978-0-7695-3110-6
DOI :
10.1109/DELTA.2008.90
