title: Binary coded triangular fringes for 3-D surface-shape measurement.
abstract: We present a method for synthesizing triangular intensity fringes as a way to solve the problems caused by projector/camera gamma nonlinearity in triangular-pattern phase-shifting profilometry. The fringe generation technique consists of projecting and acquiring a temporal sequence of strictly binary color patterns (code gray), whose (adequately weighted) average leads to triangular fringe patterns with the required number of bits, which allows a reliable three-dimensional profile reconstruction using these methods. Validation experiments are presented.
authors.affiliation: Electronic Engineering Department, University of Guadalajara, Guadalajara, Jalisco, Mexico. luis.flores@cucei.udg.mx
authors.forename: Jorge L
authors.initials: JL
authors.lastname: Flores
authors.forename: García
authors.initials: G
authors.lastname: Torales
authors.forename: José A
authors.initials: JA
authors.lastname: Ferrari
authors.forename: Gastón
authors.initials: G
authors.lastname: Ayubi
authors.forename: Oscar Ed
authors.initials: OE
authors.lastname: Castillo
authors.forename: Matías
authors.initials: M
authors.lastname: Di Martino