Biased curve indicator random field filters for enhancement...

Image analysis – Image enhancement or restoration – Edge or contour enhancement

Reexamination Certificate

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C382S260000, C348S533000

Reexamination Certificate

active

07130484

ABSTRACT:
Enhancement of contours in images that are noisy or otherwise corrupted is important in medical imaging, scanning for weapons detection, and many other fields. Here, the Curve Indicator Random Field (CIRF) is used as a model of uncorrupted images of contours for constructing filters with biased CIRF posterior mean approximations involving a coupled nonlinear system of equations with a number of adjustable parameters.

REFERENCES:
patent: 4803736 (1989-02-01), Grossberg et al.
patent: 5452376 (1995-09-01), Escalante Ramirez et al.
patent: 5662113 (1997-09-01), Liu
patent: 6591004 (2003-07-01), VanEssen et al.
patent: 6842638 (2005-01-01), Suri et al.
S. W. Zucker, R. Hummel, and A. Rosenfeld. “An Application of Relaxation Labelling to Line and Curve Enhancement”, IEEE Trans. Computers, C-26: pp. 393-403, 922-929, 1977.
J. Canny, “A Computational Approach to Edge Detection” IEEE Transactions on Pattern Analysis and Machine Intelligence, 8: pp. 679-698, 1986.
L. Williams and D. Jacobs, Local Parallel Computation of Stochastic Completion Fields, Neural Computation, 9(4): pp. 859-881,1997.
U. Montonari. “On the Optimum Detection of Curves in Noisy Pictures”, Comm. ACM, 14: pp. 335-345, 1971.
S. Ullman, “Filling-in Gaps: The Shape of Subjective Contours and a Model for their Generation”,. Biological Cybernetics, 25: pp. 1-6, 1976.
P. Parent and S. W. Zucker, “Trace Inference, Curvature Consistency, and Curve Detection”, IEEE Transactions on Pattern Analysis and Machine Intelligence, 11(8): pp. 823-839, Aug. 1989.
L. Herault and R. Horaud, “Figure-Ground Discrimination: A Combinatorial Optimization Approach”, IEEE Transactions on Pattern Analysis and Machine Intelligence, 15(9): pp. 899-914, 1993.
D. Mumford, “Algebraic Geometry and Its Applications”, chapter Elastica and Computer Vision, pp. 491-506, Springer-Verlag, 1994.
B. B. Kimia, I. Frankel, and A.-M. Popescu, “Euler Spiral for Shape Completion”,. In K. Boyer and S. Sarkar, editors, Perceptual Organization for Artificial Vision Systems, pp. 289-309, Kluwer Academic, Boston, 2000.
K. Georg, “Matrix-Free Numerical Continuation and Bifurcation”, Numerical Functional Analysis and Optimization, 22: pp. 303-320, 2001.

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