Fast Algorithm of Infrared Point Target Detection in Fluctuant Background

The background estimation approach using a small window median filter is presented on the bases of analyzing IR point target, noise and clutter model. After simplifying the two-dimensional filter, a simple method of adopting one-dimensional median filter is illustrated to make estimations of background according to the characteristics of IR scanning system. The adaptive threshold is used to segment canceled image in the background. Experimental results show that the algorithm achieved good performance and satisfy the requirement of big size image-s real-time processing.

Authors:

• Yang Weiping
• Zhang Zhilong
• Li Jicheng
• Chen Zengping
• He Jun

Keywords:

• Point target
• background estimation
• median filter
• adaptive threshold
• target detection.

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