Volterra filters for enhancement of contours in images

Details Volterra filters for enhancement of contours in images Volterra filters for enhancement of contours in images

2006-08-01

2006-08-01

Couso, Von J. (Department: 2625)

Image analysis

Image enhancement or restoration

Image filter

C382S266000, C348S533000

Reexamination Certificate

active

07085426

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 linear, quadratic and cubic Volterra filters involving a number of adjustable parameters.

REFERENCES:
patent: 6944304 (2005-09-01), Dance et al.
patent: 2002/0186874 (2002-12-01), Price et al.
Li et al “Computationally Efficient Algorithms for Third Order Adaptive Volterra Filters”, Proceedings of the 1998 IEEE International Conference on Acoustics, Speech and Signal Processing, vol. 3, May 12-15, 1998, p. 1405-1408.
Lin et al, “2-D Adaptive Volterra Filter for 2-D Nonlinear Channel Equalisation and Image Restoration”, Electronics Letters (UK), vol. 28, No. 2, Jan. 16, 1992, p. 180-182.

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