Fringe projection profilometry is widely used for three-dimensional (3D) measurements.
System calibration is crucial to fringe projection systems, since it determines how the phase …

Fringe projection techniques are very popular among the several profilometry methods
proposed in literature. One of their main advantages is that most of them require one image …

This paper presents a novel calibration approach for determining the map** relationship
between the depth map and the phase difference in fringe projection profilometry. This …

This article analyzes the measurement performance of a 3D full-field imaging system based
on the projection of grating and active triangulation. We first explore the exact mathematical …

(57) ABSTRACT A method and system for full-field fringe-projection for 3-D Surface-
geometry measurement, referred to as “triangular pattern phase-shifting is disclosed. A …

An accurate phase-height map** algorithm based on phase-shifting and a neural network
is proposed to improve the performance of the structured light system with digital fringe …

A novel uneven fringe projection technique is presented whereby nonuniformly spaced
fringes are generated at a digital video projector to give evenly spaced fringes in the …

The accurate three-dimensional shape measurement of a complex surface is significantly
important in industrial testing. However, three-dimensional profilometry by conventional …

We present a novel neural network signal calibration technique to improve the performance
of triangulation-based structured light profilometers based on digital projection. The …

Camera calibration for machine vision is critical in three-dimensional (3-D) measurement
systems based on a digital light processing (DLP) projector and a camera. The Z-height of …