Elimination of gamma nonlinear luminance effects for digital video projection phase measuring profilometers

Authors

Matthew J. Baker, University of WollongongFollow
Jiangtao Xi, University of WollongongFollow
Joe F. Chicharo, University of WollongongFollow

RIS ID

25581

Publication Details

Baker, M., Xi, J. & Chicharo, J. F. (2008). Elimination of gamma nonlinear luminance effects for digital video projection phase measuring profilometers. Fourth IEEE International Symposium on Electronic Design, Test and Applications (pp. 496-501). Los Alamitos, CA: IEEE Computer Society.

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.