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Proceedings Paper

Study on design of infrared cooperative marker and extraction method of random irregular cross
Author(s): Guangwen Jiang; Zhichao Chao; Sihua Fu; Ruifen Shen; Sanhong Wang
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Paper Abstract

The design of cooperative marker and the accuracy of target extraction are of great significance for precision of monocular pose measurement. To suit all-weather conditions in some applications, infrared cooperative marker combined by several crosses is designed, and each of the crosses is composed of a certain mount of infrared LEDs (Light Emitting Diodes) with the wavelength of 850 nanometers. When shooting at different directions, the angles between both arms of the cross and horizontal axis of the image are different and irregular. Aiming at detection of random and irregular cross, a new sub-pixel detection method based on GPI (gray projecting integration) and correlation is put forward. Experiments show that the proposed detection method is robust and can locate cross center with the accuracy prior to 0.05 pixels.

Paper Details

Date Published: 4 August 2009
PDF: 6 pages
Proc. SPIE 7383, International Symposium on Photoelectronic Detection and Imaging 2009: Advances in Infrared Imaging and Applications, 73831U (4 August 2009); doi: 10.1117/12.834961
Show Author Affiliations
Guangwen Jiang, National Univ. of Defense Technology (China)
Zhichao Chao, National Univ. of Defense Technology (China)
Sihua Fu, National Univ. of Defense Technology (China)
Ruifen Shen, SimpLight Nanoelectronics Co. Ltd. (China)
Sanhong Wang, National Univ. of Defense Technology (China)


Published in SPIE Proceedings Vol. 7383:
International Symposium on Photoelectronic Detection and Imaging 2009: Advances in Infrared Imaging and Applications
Jeffery Puschell; Hai-mei Gong; Yi Cai; Jin Lu; Jin-dong Fei, Editor(s)

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