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Proceedings Paper

A fast 3D image simulation algorithm of moving target for scanning laser radar
Author(s): Jicheng Li; Zhiguang Shi; Xiao Chen; Dong Chen
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Paper Abstract

Scanning Laser Radar has been widely used in many military and civil areas. Usually there are relative movements between the target and the radar, so the moving target image modeling and simulation is an important research content in the field of signal processing and system design of scan-imaging laser radar. In order to improve the simulation speed and hold the accuracy of the image simulation simultaneously, a novel fast simulation algorithm is proposed in this paper. Firstly, for moving target or varying scene, an inequation that can judge the intersection relations between the pixel and target bins is obtained by deriving the projection of target motion trajectories on the image plane. Then, by utilizing the time subdivision and approximate treatments, the potential intersection relations of pixel and target bins are determined. Finally, the goal of reducing the number of intersection operations could be achieved by testing all the potential relations and finding which of them is real intersection. To test the method’s performance, we perform computer simulations of both the new proposed algorithm and a literature’s algorithm for six targets. The simulation results show that the two algorithm yield the same imaging result, whereas the number of intersection operations of former is equivalent to only 1% of the latter, and the calculation efficiency increases a hundredfold. The novel simulation acceleration idea can be applied extensively in other more complex application environments and provide equally acceleration effect. It is very suitable for the case to produce a great large number of laser radar images.

Paper Details

Date Published: 15 October 2014
PDF: 8 pages
Proc. SPIE 9244, Image and Signal Processing for Remote Sensing XX, 92441M (15 October 2014); doi: 10.1117/12.2066838
Show Author Affiliations
Jicheng Li, National Univ. of Defense Technology (China)
Zhiguang Shi, National Univ. of Defense Technology (China)
Xiao Chen, National Univ. of Defense Technology (China)
Dong Chen, National Univ. of Defense Technology (China)


Published in SPIE Proceedings Vol. 9244:
Image and Signal Processing for Remote Sensing XX
Lorenzo Bruzzone, Editor(s)

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