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Proceedings Paper

High dynamic range and real-time 3D measurement based on a multi-view system
Author(s): Liang Zhang; Qian Chen; Chao Zuo; Shijie Feng
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Paper Abstract

Fringe projection profilometry is a mature 3D measurement technique, however it is still difficult to measure high dynamic range objects in real-time. In this paper, we present a method of using digital micro-mirror devices to dynamic range enhancement of fringe projection profilometry. After applying this method, we can obtain two fringe images with different exposures in one projection period. These two fringes will be combined to solve the high dynamic range problem. Furthermore, we also build a multi-view system to realize real-time measuring stably because the multi-view system can retrieve the absolute phase without projecting additional fringe patterns. Experiments demonstrate that the proposed method can realize real-time three-dimensional measurement at 28 frames per second and the dynamic range of fringe projection profilometry system is increased by 2 times.

Paper Details

Date Published: 31 January 2020
PDF: 6 pages
Proc. SPIE 11427, Second Target Recognition and Artificial Intelligence Summit Forum, 1142715 (31 January 2020); doi: 10.1117/12.2551255
Show Author Affiliations
Liang Zhang, Nanjing Univ. of Science And Technology (China)
Qian Chen, Nanjing Univ. of Science and Technology (China)
Chao Zuo, Nanjing Univ. of Science and Technology (China)
Shijie Feng, Nanjing Univ. of Science and Technology (China)

Published in SPIE Proceedings Vol. 11427:
Second Target Recognition and Artificial Intelligence Summit Forum
Tianran Wang; Tianyou Chai; Huitao Fan; Qifeng Yu, Editor(s)

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