A New Algorithm of Image Registration Based on Contour Feature

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Abstract:

Image registration is an important task in image processing. In this paper, a new and fast contour-based image registration algorithm is proposed. In this algorithm, we fetch contour points and calculate the normal angles firstly, then figure out the histogram of the contour-feature points. By computing circular correlation of the histogram, the rotation angle can be gained. As the rotation angle is obtained, it vastly simplifies the complexity of estimating other registration parameters and reduces the calculated amount, thus achieving a fast image registration algorithm. This algorithm has the invariance of rotation, translation and scale, and it has high robustness for either open contour or closed contour.

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Periodical:

Advanced Materials Research (Volumes 912-914)

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1092-1097

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April 2014

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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