Elimination of ? Non-linear Luminance Effects for Digital Video Projection Phase Measuring Profilometers
In this paper we are concerned with the elimination of ? related errors by employing a simple and direct approach, specifically, for Phase Measuring Profilometry (PMP) methods. The harmonic structure of a ? distorted fringe is investigated and the implications of ? for the PMP algorithm is studied. The minimum requirements in terms of number of Steps for appropriate elimination of ? related phase residuals is identified and verified via both simulation and practical experimentation.
Index Terms:
Gamma, Harmonics, Non-linear Luminance, Digital, Fringe, Focusing, Profilometry, Defocus, PMP
Citation:
M. J. Baker, J. Xi, J. F. Chicharo, "Elimination of ? Non-linear Luminance Effects for Digital Video Projection Phase Measuring Profilometers," delta,pp.496-501, 4th IEEE International Symposium on Electronic Design, Test and Applications (delta 2008), 2008