Journal
SENSORS
Volume 22, Issue 16, Pages -Publisher
MDPI
DOI: 10.3390/s22166258
Keywords
anisotropy; spatio-temporal filtering; robust principal component decomposition model; infrared target; detection
Funding
- Guangxi Natural Science Foundation [2021GXNSFBA075029]
- National Natural Science Foundation of China [62001129]
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This paper proposes a robust principal component decomposition model with joint spatial and temporal filtering and L1 norm regularization to effectively suppress the complex backgrounds in infrared target detection. The model achieved a better background suppression effect and higher detection rate compared to other algorithms under the same false alarm rate.
Infrared target detection is often disrupted by a complex background, resulting in a high false alarm and low target recognition. This paper proposes a robust principal component decomposition model with joint spatial and temporal filtering and L1 norm regularization to effectively suppress the complex backgrounds. The model establishes a new anisotropic Gaussian kernel diffusion function, which exploits the difference between the target and the background in the spatial domain to suppress the edge contours. Furthermore, in order to suppress the dynamically changing background, we construct an inversion model that combines temporal domain information and L1 norm regularization to globally constrain the low rank characteristics of the background, and characterize the target sparse component with L1 norm. Finally, the overlapping multiplier method is used for decomposition and reconstruction to complete the target detection.Through relevant experiments, the proposed background modeling method in this paper has a better background suppression effect in different scenes. The average values of the three evaluation indexes, SSIM, BSF and IC, are 0.986, 88.357 and 18.967, respectively. Meanwhile, the proposed detection method obtains a higher detection rate compared with other algorithms under the same false alarm rate.
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