title: Color encoding of binary fringes for gamma correction in 3-D profiling.
abstract: Three-dimensional profiling by sinusoidal fringe projection using PSI-algorithms are distorted by the nonlinear response of digital cameras and commercial video projectors. To solve the problem, we present a fringe generation technique that consists of projecting and acquiring a temporal sequence of strictly binary color patterns, whose (adequately weighted) average leads to sinusoidal fringe patterns with the required number of bits, which allows for a reliable three-dimensional profile using a PSI-algorithm. Validation experiments are presented.
authors.affiliation: Instituto de Física, Facultad de Ingeniería, UdelaR, J. Herrera y Reissig 565, Montevideo, Uruguay. ayubi@fing.edu.uy
authors.forename: Gastón A
authors.initials: GA
authors.lastname: Ayubi
authors.forename: J Matías
authors.initials: JM
authors.lastname: Di Martino
authors.forename: Julia R
authors.initials: JR
authors.lastname: Alonso
authors.forename: Ariel
authors.initials: A
authors.lastname: Fernández
authors.forename: Jorge L
authors.initials: JL
authors.lastname: Flores
authors.forename: José A
authors.initials: JA
authors.lastname: Ferrari