Wen-Kang Deng This email address is being protected from spambots. You need JavaScript enabled to view it.1,2, Zong-Xi Song1 , Wei Gao1 , Fei-Peng Li1,2, Yin-Long Qi1,2 and Chen-Chen Wang1,2

1Space Optics Laboratory, Xi’an Institute of Optics and Precision Mechanics of CAS, Xi’an 710119, P.R. China
2University of Chinese Academy of Sciences, Beijing 100049, P.R. China


 

Received: June 27, 2016
Accepted: January 12, 2017
Publication Date: June 1, 2017

Download Citation: ||https://doi.org/10.6180/jase.2017.20.2.06  

ABSTRACT


An effective method for dim and small multi-targets detection and tracking through successive CCD images in complex starry background is put forward in this paper. Optical starry background images contain a lot of interference noise besides the moving targets. Firstly, self-adaptive threshold segmentation can play an important role in eliminating noise and improving detection rate. Furthermore, back neighborhood frame correlation (BNFC) is proposed to detect and locate the target, which is sheltered by bigger interfered stars. After detection framework acquiring the location of moving targets, particle filter which has nonlinear filtering feature is applied to track the trajectories for multi-targets in real-time. Experimental results show that by using the adaptive target detection and improved particle filter, the trajectories could be achieved at a relative low signal to noise ratio (SNR 3.5) in the case of multi-targets detection and tracking in real time. The method has good prospect for engineering application.


Keywords: Complex Starry Background, Dim and Small Targets, Self-adaptive Target Detection, Particle Filter


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