Optics and Precision Engineering, Volume. 30, Issue 1, 96(2022)
Low false alarm infrared target detection in airborne complex scenes
When an infrared photoelectric detection system detects a target in a complex airborne scene, the spatial distribution of the ground false alarm interference source is consistent with the spatial distribution of the small dim target. Therefore, a multi-dimensional feature association detection algorithm based on moving target features was proposed herein. First, feature points were detected in complex scenes, and a frame skipping mechanism based on the relative velocity-height ratio was introduced. Candidate targets were detected by inter-frame image difference after image registration. Simultaneously, multi-dimension and multi-frame correlations based on the kernel correlation filter were used to suppress false alarms. In an airborne environment where the vehicle speed-to-height ratio is greater than 30 mrad/s and frame time is less than 10 ms, the average detection rate of this algorithm is 99.13%, and the false alarm rate is 10-5. This method was verified in various complex scenarios. In addition, it is suitable for pipeline parallel operation and meets the engineering needs.
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Dezhen YANG, Songlin YU, Jinjun FENG, Jiangyong LI, Lihe WANG. Low false alarm infrared target detection in airborne complex scenes[J]. Optics and Precision Engineering, 2022, 30(1): 96
Category: Information Sciences
Received: Apr. 30, 2021
Accepted: --
Published Online: Jan. 20, 2022
The Author Email: YU Songlin (yusir8511@sina.com)