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Accuracy enhancement of three-dimensional reconstruction using phase-shifting shadow moiré

[+] Author Affiliations
Ali Jamali Avilagh

Amirkabir University of Technology, Electrical Engineering Department, Automation and Intelligent Monitoring Systems Research Lab, Hafez Street, Tehran, Iran

Amir Hossein Rezaie

Amirkabir University of Technology, Electrical Engineering Department, Automation and Intelligent Monitoring Systems Research Lab, Hafez Street, Tehran, Iran

J. Electron. Imaging. 22(2), 023024 (Jun 11, 2013). doi:10.1117/1.JEI.22.2.023024
History: Received February 1, 2013; Revised April 21, 2013; Accepted May 10, 2013
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Abstract.  An iterative algorithm and a denoising method for accuracy enhancement of three-dimensional (3-D) reconstruction processes by shadow moiré is proposed. Using traditional shadow moiré for 3-D reconstruction leads to a nonuniform phase shift error. The proposed iterative algorithm eliminates this error by using three phase-shifted interferograms and obtains precise phase information. Moreover the proposed denoising method, which is based on undecimated wavelet transform, effectively eliminates noise and grating patterns while retaining useful information. The proposed phase shifting shadow moiré method is compared with the structured lighting method, which is a common method for 3-D reconstruction, and it is further compared with traditional shadow moiré. The methods are simulated in a 3ds-Max environment. The simulation results show that the proposed shadow moiré technique achieves greater accuracy in comparison with the traditional shadow moiré and structured lighting techniques and also it has higher accuracy than existing typical phase-shifting algorithms.

© 2013 SPIE and IS&T

Citation

Ali Jamali Avilagh and Amir Hossein Rezaie
"Accuracy enhancement of three-dimensional reconstruction using phase-shifting shadow moiré", J. Electron. Imaging. 22(2), 023024 (Jun 11, 2013). ; http://dx.doi.org/10.1117/1.JEI.22.2.023024


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