Accurate Tracking Based on Interest Points in the Infrared Imaging Guidance

Nowadays, infrared imaging guidance has become one of the most magistral guidance technologies. And the terminal accurate tracking technology has been a study hotspot and attracted many scholars in different countries round the world. Up to now, the current approaches to terminal tracking widely used in infrared imaging guidance missiles mainly base on the anterior cusp of the battleplane. This paper develops a new approach to perform the terminal accurate tracking, which bases on the interest points. Interest points are the points around which the intensity varies acutely and typically. In this paper, we compute these interest points from a reformative Laplacian of the false color infrared image, and then use them to form a tracking point. A simulation system is built to test this approach and the result shows the new tracking approach based on interest points can perform a quite accurate terminal guidance