Xiao LIU, Guang-zhao CUI, Zheng-zhou LI, et al. Small target motion detection based on layering of vision system[J]. Optics and precision engineering, 2019, 27(10): 2251-2262.
DOI:
Xiao LIU, Guang-zhao CUI, Zheng-zhou LI, et al. Small target motion detection based on layering of vision system[J]. Optics and precision engineering, 2019, 27(10): 2251-2262. DOI: 10.3788/OPE.20192710.2251.
Small target motion detection based on layering of vision system
To improve the detection ability of weak and small moving targets in optical remote sensing images
a motion detection method based on the hierarchical structure of the eagle-eye retinal vision system was proposed. Firstly
based on the stratification characteristics of the eagle-eye retina
combined with the physiological structure and function of the main cells of each layer
corresponding filters of each layer were constructed to suppress the background micro-displacement and spurious noise. Then
based on the Reichardt motion detection model
time domain high-pass filtering and ON-OFF dual-channel filtering were added to estimate the target motion vector
which overcomes the complex response of the traditional Reichardt motion detector to the step boundary and also effectively enhances the sensitivity of motion detection. Finally
using the hierarchical characteristics of the advanced visual nervous system
multi-scale mapping and the motion vector saliency map were combined based on the degree of spatial similarity
and multi-scale processing was used to detect the motion features. The experimental results show that the average signal-to-noise ratio of the proposed algorithm is improved to 56.20 dB
the correct rate is 99.71%
and the comprehensive evaluation index
F
1 is 3.63e-02
which is 27.82% higher than that of the traditional Reichardt model. Compared with the traditional motion detection algorithm
the proposed method can improve the interference suppression performance of complex background and also enhance the detection ability of a small target and small displacement significantly.
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