Chinese Optics Letters, 2017, 15 (10): 102802, Published Online: Jul. 19, 2018  

Coordinate difference homogenization matching method for motion correction in 3D range-intensity correlation laser imaging Download: 833次

Author Affiliations
1 Optoelectronics System Laboratory, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
2 University of Chinese Academy of Sciences, Beijing 100049, China
3 School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
4 College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China
Abstract
This Letter proposes a coordinate difference homogenization matching method to solve motion influence in three-dimensional (3D) range-intensity correlation laser imaging. Firstly, features and feature pairs of gate images are obtained by speeded-up robust figures and bi-directional feature matching methods. The original mean value of the feature-pair coordinate differences is calculated. Comparing the coordinate differences with the original mean value, the wrong feature pairs are removed, and then an optimized mean value is updated. The final feature-pair coordinates are re-registered based on the updated mean value. Thus, an accurate transformation is established to rectify motion gate images for 3D reconstruction. In the experiment, a 3D image of a tower at 780 m is successfully captured by our laser gated imaging system on a pan–tilt device.

Liang Sun, Xinwei Wang, Pengdao Ren, Pingshun Lei, Songtao Fan, Yan Zhou, Yuliang Liu. Coordinate difference homogenization matching method for motion correction in 3D range-intensity correlation laser imaging[J]. Chinese Optics Letters, 2017, 15(10): 102802.

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