Patent ID: 7085426
Filing Date: 2006-08-01
Classification: G06K,G06T

Abstract:
1. A method of enhancing contours in a noisy image, said method comprising the steps of: a) capturing said noisy image as a first distribution m of spatially distributed intensity values b) transforming said intensity values of said first distribution m into a second distribution U of spatially distributed intensity values representing an enhanced image having enhanced contours therein, by using a transformation model, which defines a cubic filter, as follows:  where: diag m is a diagonal operator comprising a matrix with said first distribution m along the diagonal of said matrix and zeroes elsewhere; the operation “·” indicates the taking of a componentwise product of two vectors, wherein in s·v evaluated at location r is the product of the two numbers s(r) and v(r), where s and v are each functions of r; a G=G(r G*=G*(r