Geometric registration of images by similarity...

Details Geometric registration of images by similarity... Geometric registration of images by similarity...

2007-11-05

2011-12-13

Cunningham, Gregory F (Department: 2624)

Image analysis

Image transformation or preprocessing

Reexamination Certificate

active

08078004

ABSTRACT:
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.

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