A novel method for extracting structural light stripe centerline based on light intensity distribution direction

Hao Dou; Yun-yong Cheng; Wen-guang Ye; Fu-qiang Yang; You Du; Ming-xuan Teng

doi:10.1117/12.2549173

20 December 2019 A novel method for extracting structural light stripe centerline based on light intensity distribution direction

Hao Dou, Yun-yong Cheng, Wen-guang Ye, Fu-qiang Yang, You Du, Ming-xuan Teng

Author Affiliations +

Proceedings Volume 11209, Eleventh International Conference on Information Optics and Photonics (CIOP 2019); 112093Y (2019) https://doi.org/10.1117/12.2549173
Event: Eleventh International Conference on Information Optics and Photonics (CIOP 2019), 2019, Xi'an, China

Abstract

Structural light measurement as a non-contact measurement method is commonly used in 3D shape detection, which can quickly acquire large-scale points cloud data of 3D surface with high precision. In the development of triangulation structural light sensors, the extraction of the light stripe centerline is the most important research point. Aiming at the problems of large error, high computational complexity and low data processing efficiency in the traditional maximum value based centerline extraction methods, a novel centerline extraction method based on actual light intensity distribution is proposed. Compared with the center line extraction method based on normal direction of light stripe, the discussed method is more suitable to describe the spatial characteristics of light stripe energy structure. It can greatly reduce the amount of calculation, improve processing speed and accuracy. The effectiveness of the proposed method is verified by a practical case of structural light sensor development.

Citation Download Citation

Hao Dou, Yun-yong Cheng, Wen-guang Ye, Fu-qiang Yang, You Du, and Ming-xuan Teng "A novel method for extracting structural light stripe centerline based on light intensity distribution direction", Proc. SPIE 11209, Eleventh International Conference on Information Optics and Photonics (CIOP 2019), 112093Y (20 December 2019); https://doi.org/10.1117/12.2549173

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KEYWORDS

Image sensors

Calibration

Sensors

Image processing

Cameras

Laser optics

Feature extraction

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