Work

Improved geometrical model of fringe projection profilometry

Year: 2014

Type: article

Abstract: The accuracy performance of fringe projection profilometry (FPP) depends on accurate phase-to-height (PTH) mapping and system calibration. The existing PTH mapping is derived based on the condition that the plane formed by axes of camera and projector is perpendicular to the reference plane, and measurement error occurs when the condition is not met. In this paper, a new geometric model for FPP is presented to lift the condition, resulting in a new PTH mapping relationship. The new model involves seven parameters, and a new system calibration method is proposed to determine their values. Experiments are conducted to verify the performance of the proposed technique, showing a noticeable improvement in the accuracy of 3D shape measurement.

Source: Optics Express

DOI: 10.1364/oe.22.032220

Authors: Zhengrong Huang, Jiangtao Xi, Yanguang Yu, Qinghua Guo, Limei Song

Institutions: University of Wollongong, Tiangong University

Language: English

Topic: Optical measurement and interference techniques

Subfield: Computer Vision and Pattern Recognition

Field: Computer Science

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,270

OpenAlex ID: W2055360757

FWCI: 1.583

Cites: 15

Cited by: 23

Related to: 10