Actions for Geometric registration of images by similarity transformation using two reference points

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Geometric registration of images by similarity transformation using two reference points

Author
Jo, Young-Heon
Published
December 13, 2011.
Physical Description
1 electronic document
Additional Creators
Yan, Xiao-Hai and Kang, Yong Q.
Online Version

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Unclassified, Unlimited, Publicly available.
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Summary
A method for registering a first image to a second image using a similarity transformation. The each image includes a plurality of pixels. The first image pixels are mapped to a set of first image coordinates and the second image pixels are mapped to a set of second image coordinates. The first image coordinates of two reference points in the first image are determined. The second image coordinates of these reference points in the second image are determined. A Cartesian translation of the set of second image coordinates is performed such that the second image coordinates of the first reference point match its first image coordinates. A similarity transformation of the translated set of second image coordinates is performed. This transformation scales and rotates the second image coordinates about the first reference point such that the second image coordinates of the second reference point match its first image coordinates.
Other Subject(s)
Collection
NASA Technical Reports Server (NTRS) Collection.
Note
Document ID: 20120000588.
Terms of Use and Reproduction
No Copyright.
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