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

fYear

2008

fDate

23-25 Jan. 2008

Firstpage

496

Lastpage

501

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/DELTA.2008.90

Filename

4459601