To enhance the anti-jamming ability with respect to the background and the illumination variation
an improved tracking method based on the fractional differential edge feature was proposed. The R-L fractional differential edge detection operator and Laplacian edge detection operator were fused to construct a hybrid edge detection operator that could enhance the high and middle frequency information and hold the low frequency information nonlinearly. The hybrid edge detection operator was used to detect the edge information of the target template and the tracking scene. The hue histogram and edge histogram of the target were separately modeled. According to the dynamic information of the background
the back-projection image could be modeled by adaptively fusing the back-projection probability values
which can be separately obtained based on the two histograms to suppress the interfering information from the background. Experiments show that the hybrid edge detection operator can enhance the signal-to-noise ratio of the edge image and improve the quality of the edge image. Furthermore
the tracking time of the tracking method based on the adaptive fusion of the edge feature and hue feature is less than 20 ms
which can meet the real-time requirements of tracking systems. The tracking method can be applied to effectively track the target in an environment with varying illumination in a background similar to the target.
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references
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