Abstract:

In order to overcome the disadvantages of the image registration method based on Hausdorff distance field of image edges,an image registration approach based on the nearest-point pseudo gravitation field is presented,in which the edge points of the reference image are assumed to generate a nearest-point pseudo gravitation field,and the average force loaded on the edge points of the floating image in the gravitation field is adopted as the similarity function.This approach reduces the effect of excess part of the floating image,improves the precision of image regi-stration,and decreases the misregistration ratio.Thus,the registration of excess edges in the floating image is effectively solved.

Key words: image registration, Hausdorf distance field, nearest-point pseudo gravitation field, excess edge