Target Detection And Recognition Technology Based On Infrared Image Information Fusion Research

As the development of the modern remote distance tacking weapon, we hope to recognize target in the stage of small target, that is the stage in which the distance between target and sensor is very far, so that to defend and tack effectively. But we can only get the information of kinematics and gray of the dot targets by pre-processing the image serials from IR sensors in the stage of target detection .It is very difficult to distinguish the real target from all kinds of virtual target and stochastic clutter if we use only the information from single sensor. But the precise recognition in the stage of small target is very important for the following target capturing and target tracking. The paper has done some works as the follows on the problem: As for the problem that how to improve the precision of IR small targets detection and the probability of recognition, has studied the imaging characteristic of IR dual band imaging system and presented the algorithm of detection and recognition for IR small targets on the base of multi-sensor information fusion.The whole algorithm's idea consists of two aspects: the first, processed the IR image sequences from the two different IR bands by detecting on the fusion of dual band and precise tracking to get the information of velocity and grayscale of targets; the second, fusing the information of the small targets form IR dual band image using the theory for multi-sensor information fusion to identify the real target to attack at the high probability.In the first chapter, a general introduction is given on the background for applying of the project and the theory for multi-sensor information fusion and the application of the theory to detection and recognition of IR small targets. Then given a concise presentation for several kinds of target detection and fusion recognition.In the second chapter, a detailed discussion is presented here for the IR small detecting technique based on the data fusion of dual band IR image information, then to preprocess images using the algorithm. The results are satisfying.In the third chapter, the method of IR small target based multi-sensor temporal-spatial information fusion(applying D-S evidence combination theory). And fused the real image sequences from the IR dual band imaging sensors using the method, improved the probability and performance of IR small target under strong clutter greatly.In the fourth chapter,presented a method based on fuzzy combination IR image target fusion recognition ,then applied the method to the image sequences from the IR dual band imaging system for target recognition, and discussed the recognition performance and the improving ways for the method.In the end of the paper, summarized the algorithms of IR small target detection and recognition based...