According to the characteristics of aircraft structure and the characteristic of its affine transform

a novel method of aircraft recognition is presented. By this method a projective of the target image which is the same as the transform of the aircraft in the sample image in the same pose can be got. Through the comaprasion of the transform image and the target image we can judge wether the type of the aircraft in the target image is the same as the one in the sample image. The computer simulation results show that the algorithm presented by this article is steady and it has great practicablity.