A distance estimation algorithm based on infrared imaging guided

The distance information of target is introduced into the infrared guidance processing, and a ranging algorithm of infrared imaging guidance is proposed. According to the fact that the target area in the infrared image increasing along with the reduction of distance between the missile and the target. The size of target is acquired in the infrared imaging by image processing, including image filtering, image segmentation, centroid tracking, closed operations and edge detection of infrared imaging and other methods. By virtue of the missile running time and the image formation time, we calculate the distance between the missile and target from the infrared projection imaging geometric model. The simulation results indicate that the new method is efficient for infrared guidance distance estimate, which made full use of the characteristics of infrared imaging in moving.