Study of parameters affecting the sensitivity of a 3D measurement system using the phase shifting technique

Zhaowei Zhong; Chew Ping Han; Anand Krishna Asundi

doi:10.1117/12.445561

23 October 2001 Study of parameters affecting the sensitivity of a 3D measurement system using the phase shifting technique

Zhaowei Zhong, Chew Ping Han, Anand Krishna Asundi

Author Affiliations +

Proceedings Volume 4398, Optical Measurement Systems for Industrial Inspection II: Application in Industrial Design; (2001) https://doi.org/10.1117/12.445561
Event: Lasers in Metrology and Art Conservation, 2001, Munich, Germany

Abstract

Parameters affecting the sensitivity of a 3D measurement system using the phase shifting technique were investigated. A simple wedge object was used for the experiments to study the factors without the possible complication caused by using a complex object. A calibration procedure was derived to investigate to what extend the important parameters affected the results of the depth measurement by the use of the phase shifting method. These parameters were the pitch, projector magnification, camera magnification, and projection angle. The results of the experiments are presented and possible reasons for such results are discussed in this paper.

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Zhaowei Zhong, Chew Ping Han, and Anand Krishna Asundi "Study of parameters affecting the sensitivity of a 3D measurement system using the phase shifting technique", Proc. SPIE 4398, Optical Measurement Systems for Industrial Inspection II: Application in Industrial Design, (23 October 2001); https://doi.org/10.1117/12.445561

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