Full-field 3D shape measurement of specular object having discontinuous surfaces

Zonghua Zhang, Shujun Huang, Nan Gao, Feng Gao, Xiangqian Jiang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

This paper presents a novel Phase Measuring Deflectometry (PMD) method to measure specular objects having discontinuous surfaces. A mathematical model is established to directly relate the absolute phase and depth, instead of the phase and gradient. Based on the model, a hardware measuring system has been set up, which consists of a precise translating stage, a projector, a diffuser and a camera. The stage locates the projector and the diffuser together to a known position during measurement. By using the model-based and machine vision methods, system calibration is accomplished to provide the required parameters and conditions. The verification tests are given to evaluate the effectiveness of the developed system. 3D (Three-Dimensional) shapes of a concave mirror and a monolithic multi-mirror array having multiple specular surfaces have been measured. Experimental results show that the proposed method can obtain 3D shape of specular objects having discontinuous surfaces effectively.

LanguageEnglish
Title of host publicationProceedings Volume 10449, Fifth International Conference on Optical and Photonics Engineering
EditorsAnand Krishna Asundi
Place of PublicationWashington, USA
PublisherSPIE
Number of pages11
ISBN (Electronic)9781510613737
ISBN (Print)9781510613720
DOIs
Publication statusPublished - 13 Jun 2017
Event5th International Conference on Optical and Photonic Engineering - , Singapore
Duration: 5 Apr 20177 Apr 2017
Conference number: 5
http://icopen.net/history.html (Link to Conference Details )

Conference

Conference5th International Conference on Optical and Photonic Engineering
Abbreviated titleicOPEN 2017
CountrySingapore
Period5/04/177/04/17
Internet address

Fingerprint

Mirrors
Position measurement
Computer vision
Cameras
Calibration
Mathematical models
Hardware

Cite this

Zhang, Z., Huang, S., Gao, N., Gao, F., & Jiang, X. (2017). Full-field 3D shape measurement of specular object having discontinuous surfaces. In A. K. Asundi (Ed.), Proceedings Volume 10449, Fifth International Conference on Optical and Photonics Engineering [104490T] Washington, USA: SPIE. https://doi.org/10.1117/12.2270172
Zhang, Zonghua ; Huang, Shujun ; Gao, Nan ; Gao, Feng ; Jiang, Xiangqian. / Full-field 3D shape measurement of specular object having discontinuous surfaces. Proceedings Volume 10449, Fifth International Conference on Optical and Photonics Engineering. editor / Anand Krishna Asundi. Washington, USA : SPIE, 2017.
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abstract = "This paper presents a novel Phase Measuring Deflectometry (PMD) method to measure specular objects having discontinuous surfaces. A mathematical model is established to directly relate the absolute phase and depth, instead of the phase and gradient. Based on the model, a hardware measuring system has been set up, which consists of a precise translating stage, a projector, a diffuser and a camera. The stage locates the projector and the diffuser together to a known position during measurement. By using the model-based and machine vision methods, system calibration is accomplished to provide the required parameters and conditions. The verification tests are given to evaluate the effectiveness of the developed system. 3D (Three-Dimensional) shapes of a concave mirror and a monolithic multi-mirror array having multiple specular surfaces have been measured. Experimental results show that the proposed method can obtain 3D shape of specular objects having discontinuous surfaces effectively.",
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Zhang, Z, Huang, S, Gao, N, Gao, F & Jiang, X 2017, Full-field 3D shape measurement of specular object having discontinuous surfaces. in AK Asundi (ed.), Proceedings Volume 10449, Fifth International Conference on Optical and Photonics Engineering., 104490T, SPIE, Washington, USA, 5th International Conference on Optical and Photonic Engineering, Singapore, 5/04/17. https://doi.org/10.1117/12.2270172

Full-field 3D shape measurement of specular object having discontinuous surfaces. / Zhang, Zonghua; Huang, Shujun; Gao, Nan; Gao, Feng; Jiang, Xiangqian.

Proceedings Volume 10449, Fifth International Conference on Optical and Photonics Engineering. ed. / Anand Krishna Asundi. Washington, USA : SPIE, 2017. 104490T.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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AB - This paper presents a novel Phase Measuring Deflectometry (PMD) method to measure specular objects having discontinuous surfaces. A mathematical model is established to directly relate the absolute phase and depth, instead of the phase and gradient. Based on the model, a hardware measuring system has been set up, which consists of a precise translating stage, a projector, a diffuser and a camera. The stage locates the projector and the diffuser together to a known position during measurement. By using the model-based and machine vision methods, system calibration is accomplished to provide the required parameters and conditions. The verification tests are given to evaluate the effectiveness of the developed system. 3D (Three-Dimensional) shapes of a concave mirror and a monolithic multi-mirror array having multiple specular surfaces have been measured. Experimental results show that the proposed method can obtain 3D shape of specular objects having discontinuous surfaces effectively.

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Zhang Z, Huang S, Gao N, Gao F, Jiang X. Full-field 3D shape measurement of specular object having discontinuous surfaces. In Asundi AK, editor, Proceedings Volume 10449, Fifth International Conference on Optical and Photonics Engineering. Washington, USA: SPIE. 2017. 104490T https://doi.org/10.1117/12.2270172