Infrared moving small-target detection using strengthened spatial-temporal tri-layer local contrast method

被引:1
|
作者
Yu, Jianing [1 ,4 ]
Li, Liyuan [2 ]
Li, Xiaoyan [1 ]
Jiao, Jingjie [1 ,4 ]
Su, Xiaofeng [3 ]
Chen, Fansheng [1 ,2 ,3 ]
机构
[1] Chinese Acad Sci, Hangzhou Inst Adv Study, Hangzhou 310024, Peoples R China
[2] Fudan Univ, Inst Optoelect, Shanghai Frontier Base Intelligent Optoelect & Per, Shanghai 200433, Peoples R China
[3] Chinese Acad Sci, Shanghai Inst Tech Phys, State Key Lab Infrared Phys, Shanghai 200083, Peoples R China
[4] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
关键词
Infrared moving small target; Spatial -temporal joint algorithm; Local contrast calculation; Temporal profile;
D O I
10.1016/j.infrared.2024.105367
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
Infrared Search and Tracking (IRST) is challenged by detecting dim and small targets in complex backgrounds. In the context of moving small target detection, a perturbed, highly illuminated background is prone to engendering a high rate of false alarms. Furthermore, the variance in movement speed and scale of the targets can easily undermine the robustness of detection methods when extracting inter-frame information. In order to overcome these inadequacies, an effective method that leverages spatial and temporal profile information is proposed. In the spatial domain, targets are enhanced by computing the ratio difference as local contrast, and layered gradient kernel preprocessing along with gray difference calculations are applied to mitigate the impact of highly illuminated background. In the time domain, a tri-layer window for temporal profile of target pixels is utilized as an enhancement. By combining detections from both domains, target extraction is achieved through simple adaptive thresholding segmentation. The experimental results demonstrate that the proposed method is capable of effectively extracting slowly moving infrared dim small targets in complex backgrounds. Compared to existing spatiotemporal joint detection methods, the robustness is enhanced, false alarm rates are reduced, and higher computational efficiency is achieved.
引用
收藏
页数:10
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