The SIFT Image Feature Matching Based on the Plural Differential
For the existing methods of image registration based on feature, a new method of image registration based on plural differential is proposed with the theory of plural differential. The proposed method uses plural differential to enhance the texture feature of the digital image first, and then uses SIFT to extract the keypoints, at last uses the RANSAC algorithm to get the correct number of matching keypoints.
S. B. Zhou and Y. Li, "The SIFT Image Feature Matching Based on the Plural Differential", Advanced Materials Research, Vols. 268-270, pp. 2172-2177, 2011