NDLI: Estimation of parameters of geometric transformation of images by fixed-point method

Content Provider	Springer Nature Link
Author	Krasheninnikov, V. R. Potapov, M. A.
Copyright Year	2012
Abstract	In solving many practical problems, the problem of combining images and the closely related problem of binding a portion of the image often arises. If the model of mutual interframe geometric transformation (GT) of two images is given, then the problem of combination is reduced to estimating the parameters of this model. There is a large number of works dedicated to the development of algorithms for estimating the parameters of GT; in particular, pseudo-gradient algorithms have been well developed [3]. However, for the success of these (and many other) algorithms, a fairly accurate initial approximation of parameters of GT is required. Otherwise, one must take a set of initial approximations. Thus, it becomes necessary to make a rough estimate of the parameters of GT, which can be taken as an initial approximation for more accurate algorithms. In this paper, the method of rough estimation of the parameters of GT, which uses the notion of the fixed point, is proposed.
Starting Page	303
Ending Page	317
Page Count	15
File Format	PDF
ISSN	10546618
Journal	Pattern Recognition and Image Analysis
Volume Number	22
Issue Number	2
e-ISSN	15556212
Language	English
Publisher	Nauka/Interperiodica
Publisher Date	2012-06-13
Publisher Place	Moscow
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	image geometric transformation estimation parameters fixed point pseudo-gradient algorithms parallel shift auxiliary transformation straight line scaling square of the gradient Laplacian numerical solution binary correlation coefficient threshold sample variances covariance Pattern Recognition Image Processing and Computer Vision
Content Type	Text
Resource Type	Article
Subject	Computer Graphics and Computer-Aided Design Computer Vision and Pattern Recognition

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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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