Strategy for automatic and complete three-dimensional optical digitization

Abstract

This Letter proposes a new strategy of a three-dimensional (3D) scanning pipeline to achieve complete 3D digitization of complex objects in a real scene. This strategy consists of a one-dimensional array of optical 3D sensors combined with an automatically controlled turntable. An efficient calibration method for the sensor array is presented to guarantee the accuracy of the 3D measurement. Furthermore, an automatic registration technique is also proposed for aligning multiple range images taken from sensor array. Experiment results are also presented to demonstrate the proposed approach.

A Calibration Method for System Parameters in Direct Phase Measuring Deflectometry

“…The past several decades have seen revolutionary developments in three-dimensional (3D) optical shape measurement techniques [1,2], which are now widely used across many different fields, including reverse engineering, 3D games, digitization of cultural relics, clothing, biometrics and other biological fields [3][4][5][6][7][8][9]. In the area of structured light techniques, phase-calculation-based fringe pattern projection has made rapid progress so far, because it has the advantages of full-field measurement, non-contact operation, automatic data processing, and fast data acquisition [10][11][12][13]. Nevertheless, there are a large number of specular objects that need to be measured [14].…”

Performance analysis and evaluation of direct phase measuring deflectometry

“…Three-dimensional (3D) shape measurement techniques for diffuse objects have been widely used in manufacturing industries [1,2] in applications such as quality inspection and reverse engineering. Full-field fringe projection techniques [2][3][4][5][6] have been widely used to obtain the 3D shapes of these diffuse objects because they offer the advantages of noncontact operation, full-field acquisition, high accuracy, and fast, automatic data processing. Along with diffuse objects, specular surfaces also have a wide range of applications in various fields [7] , including new energy generation, illumination, and aerospace and biomedical engineering.…”

Coherent digital demodulation of single-camera N-projections for 3D-object shape measurement: Co-phased profilometry

“…Digital fringe projection 3D profilometry continues to be an active research field as can be seen from the references on this paper [1][2][3][4][5][6][7][8][9]. In 2010 Gorthi and Rastogi [3] review the major techniques used in 3D shape measurement.…”