A method of image registration based on its geometric character

This paper aimed at building a model for the image registration of CT image and slice image. We used a registration method based on the geometric character of the outline of the image. This method need us do pretreatment to the image, in order to get rid of the noise and enhance the outline of the image, here we use time-frequency theory such as wavelet transformation, gray image fusion etc. The result of image registration shows that this method is fast, simple and effective