Infrared target tracking based on multi-feature fusion under motion platform

In order to realize infrared target tracking accurately under motion platform, and make up for the shortcoming of the nuclear density estimation based on gradation feature, an adaptive kalman-mean shift algorithm based on multi-feature fusion is proposed. The target model based on edge-gradation feature fusion is applied in the mean shift algorithm. The starting position at present of an infrared target is predicted by a kalman filter, and then a scale updating item of tracking window is appended based on the relationship between mutual information and the object scale. Then the moving object, especially the object with a variable scale, is adaptively tracked under motion platform. Experimental results demonstrate that the adaptability of mean shift algorithm is enhanced by the improved scheme, which can be applied in the process of long time tracking for the object with a variable scale.