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Proceedings Paper

Longitudinal resolution improving of 3D range imaging lidar through redundant detection and intensity distribution analysis
Author(s): Weiguo Kong; Siying Chen; Yinchao Zhang; He Chen; Zongjia Qiu; Yuzhao Wang; Peng Liu; Guoqiang Ni
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Paper Abstract

3D detection is an important application of Lidar. A 3D range imaging Lidar system is presented in this paper. The longitudinal resolution of 3D range imaging Lidar is poor because of the length of pulse width and gate time of ICCD, which together determine the detected longitudinal range from a single laser pulse shot. To improve the longitudinal resolution, power distribution received by one pixel of ICCD is analyzed, and a method is put forward. In this method, by setting the gate time and step interval of delay time to the value of pulse width, one object will be detected in two neighboring images, and it can be precisely located through analysis of the pixel values in the two images. The locating precision of this method is verified by experiments, and results show that the longitudinal resolution is improved by ten times, that is from 1.65m to about 0.15m. Meanwhile, the detection efficiency is reduced only a little.

Paper Details

Date Published: 21 June 2011
PDF: 8 pages
Proc. SPIE 8085, Videometrics, Range Imaging, and Applications XI, 808511 (21 June 2011); doi: 10.1117/12.889263
Show Author Affiliations
Weiguo Kong, Beijing Institute of Technology (China)
Siying Chen, Beijing Institute of Technology (China)
Yinchao Zhang, Beijing Institute of Technology (China)
He Chen, Beijing Institute of Technology (China)
Zongjia Qiu, Beijing Institute of Technology (China)
Yuzhao Wang, Beijing Institute of Technology (China)
Peng Liu, Beijing Institute of Technology (China)
Guoqiang Ni, Beijing Institute of Technology (China)

Published in SPIE Proceedings Vol. 8085:
Videometrics, Range Imaging, and Applications XI
Fabio Remondino; Mark R. Shortis, Editor(s)

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