A Target Location Algorithm Based on Image Registration

In order to realize shore-based target precision strike for the big caliber naval gun weapon, and resolve the problem about target location using by image information, a target location algorithm based on image registration is proposed. Firstly, the SURF features of target image and satellite image are extracted, and matched feature point pairs are obtained by the nearest neighbor role. Secondly, transformation parameters are estimated by RANSAC algorithm to achieve image registration, and the position information of target is obtained. Finally, the targets position parameters relative to the ship are calculated by Bowring formula. Experiment showed this algorithm could achieve target location accurately.