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Proceedings Paper

Recovering camera response function for structural light reconstruction
Author(s): Haihua Cui; Zhaojie Li; Xiaodi Zhang; Wei Tian; Xiaosheng Cheng; Wenhe Liao
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Paper Abstract

This article presents an algorithm to avoid camera overexposure or underexposure by calculating and analyzing the camera response function. First, the range of intensity value and time is set to ensure that the intensity value of each image pixel is within the measurement range when the camera's exposure time is within the time range. Then, the reference image which has the maximum number of pixel intensity values within the intensity value range is selected. Third, the camera response function will be calculated based on the variation of the reference point intensity value with the exposure time. Finally, the whole exposure times will be recovered based on the computed response function, and used in the process of structured light measurement. The experimental results verify the performance and feasibility of the proposed method.

Paper Details

Date Published: 2 November 2018
PDF: 8 pages
Proc. SPIE 10819, Optical Metrology and Inspection for Industrial Applications V, 108191T (2 November 2018); doi: 10.1117/12.2501361
Show Author Affiliations
Haihua Cui, Nanjing Univ. of Aeronautics and Astronautics (China)
Zhaojie Li, Nanjing Univ. of Aeronautics and Astronautics (China)
Xiaodi Zhang, Nanjing Univ. of Aeronautics and Astronautics (China)
Wei Tian, Nanjing Univ. of Aeronautics and Astronautics (China)
Xiaosheng Cheng, Nanjing Univ. of Aeronautics and Astronautics (China)
Wenhe Liao, Nanjing Univ. of Aeronautics and Astronautics (China)


Published in SPIE Proceedings Vol. 10819:
Optical Metrology and Inspection for Industrial Applications V
Sen Han; Toru Yoshizawa; Song Zhang, Editor(s)

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