| Issue |
MATEC Web Conf.
Volume 139, 2017
2017 3rd International Conference on Mechanical, Electronic and Information Technology Engineering (ICMITE 2017)
|
|
|---|---|---|
| Article Number | 00049 | |
| Number of page(s) | 6 | |
| DOI | https://doi.org/10.1051/matecconf/201713900049 | |
| Published online | 05 December 2017 | |
A time-encoded approach to detect cooperative targets for UAV landing
College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410082, PR China
* e-mail: wangzitju@163.com
To detect visible light cooperative targets during UAV landing, we use a time relay to encode the intensity of lamps. The change pattern of the lamps intensity is presented in this paper. The frames with strong and weak lamps light are called strong frames weak frames respectively. In continuous sequence images, we take weak frames as background and subtract background using strong fames. The geometric transformations are considered when subtracting background and a float threshold value are used to threshold the difference images. We also design several geometric constraints to eliminate interference points. The approaches to find the first weak frames and to track lamps in a sequence images are also presented. The experiments show that our method is robust to scale change, interference points and moving object in background.
Key words: UAV landing / cooperative targets / detection
© The Authors, published by EDP Sciences, 2017
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
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