Real-time detection and recognition of infrared beacons in opto-electronic guiding system

Zhenming Peng; Xin Zheng; Shiying Yang; Guo Zhang

doi:10.1117/12.839210

25 August 2009 Real-time detection and recognition of infrared beacons in opto-electronic guiding system

Zhenming Peng, Xin Zheng, Shiying Yang, Guo Zhang

Proceedings Volume 7375, ICEM 2008: International Conference on Experimental Mechanics 2008; 73752A (2009) https://doi.org/10.1117/12.839210
Event: International Conference on Experimental Mechanics 2008 and Seventh Asian Conference on Experimental Mechanics, 2008, Nanjing, China

Abstract

A new approach was proposed for detecting and segmenting the beacons from low contrast infrared image captured from two CCD detectors fixed on two sides of deck, respectively. Adaptive thresholding is used for obtaining binary image of the infrared beacons by rough segmentation in preprocessing step, which probably contains some non-beacons areas. Then line encoding is conducted for binary image containing beacons and non-beacons, which is a look-up table (LUT) with little data quantity. Refined beacons extraction and recognition based on various features are conducted within LUT data. Finally, the geometric features (e.g. rectangularity, circularity, eccentricity) combining with the moment invariants is used to recognize the real beacons by minimum euclidean distance and prior information of artificial beacon. Experimental results show that the proposed method can preserve the perfect shape of beacons and effectively detect and track it for opto-electronic guiding system.

Citation Download Citation

Zhenming Peng, Xin Zheng, Shiying Yang, and Guo Zhang "Real-time detection and recognition of infrared beacons in opto-electronic guiding system", Proc. SPIE 7375, ICEM 2008: International Conference on Experimental Mechanics 2008, 73752A (25 August 2009); https://doi.org/10.1117/12.839210

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