Research on infrared target recognition in complicated ground backdrop

An infrared target recognition method in complicated group backdrop based on SURF is studied in this paper. Firstly, the image is preprocessed by image enhancement method of wavelet decomposition, histogram equalization and adaptive median filtering to increase the gray differences between target and background, and then SURF is used to realize infrared target recognition. The simulation focuses on SURF feature matching threshold and the number of matching feature points. Experimental results show that the proposed method works well on infrared target recognition in complicated ground backdrop.