Dr. Ruitao Lu Profile

Dr. Ruitao Lu

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Proceedings Article | 18 December 2023 Paper

Spatial-temporal joint constraints based tracking method for infrared UAV

Xueli Xie, Jianxiang Xi, Ruitao Lu, Xiaogang Yang, Wenxin Xia

Proceedings Volume 12960, 129600A (2023) https://doi.org/10.1117/12.3006233

KEYWORDS: Detection and tracking algorithms, Unmanned aerial vehicles, Infrared radiation, Infrared search and track, Infrared imaging, Feature extraction, Convolution, Thermography, Motion models

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The misuse of UAVs has spurred the development of Anti-UAV technology. Infrared detector-based UAV tracking technology has become a research hotspot in the field of the Anti-UAV technology, but still faces the problem of tracking failure caused by background interference. To improve the accuracy and stability of infrared UAV tracking in the complex environments, a spatial-temporal joint constraints based infrared UAV tracking algorithm is proposed. First, a feature pyramid-based Siamese backbone is constructed to enhance the capability of feature extraction for infrared UAVs through cross-scale feature fusion. Next, a region proposal network based on spatio-temporal joint constraints is proposed. Under the constraints of template appearance features and target motion information, the location probability distribution of the infrared UAV is predicted in the entire image, and the prior anchor box is guided to focus on the candidate regions, realizing a soft adaptive search region selection mechanism. By focusing the search area, the anti-background interference capability of the local search strategy and the recapture capability of global search strategy are fused, which effectively mitigates the negative sample interference brought by global search and further enhances the discriminability of target features. Finally, the proposed algorithm is evaluated on the Anti-UAV dataset, achieving precision, success rate, and average precision of 89.5%, 64.9%, and 65.6%, respectively, with a tracking speed of 18.5 FPS. Compared with other advanced tracking algorithms, the proposed algorithm obtains better tracking performance and superior tracking performance in complex scenarios such as fast motion, thermal crossover and distractors interference.

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