Patent ID: 7742652
Filing Date: 2010-06-22
Classification: G06K,G06T,H04N

Abstract:
1. A method for image noise separation, said method comprising: a) processing an original input image to create a first-layer LH filtered image, LH b) processing said input image to create a first-layer HL filtered image, HL c) processing said input image to create a first-layer LL filtered image, LL d) combining said first-layer LH filtered image and said first-layer HL filtered image to produce a first-layer edge energy feature, EE e) repeating steps b-d using said first-layer LL filtered image as an input image thereby creating a second-layer LH filtered image, LH f) combining said second-layer LH filtered image and said second-layer HL filtered image to produce a second-layer edge energy feature, EE g) creating an edge map, EM, from at least one of said edge energy features; and h) creating a de-noised image by modifying values in said original input image with values in at least one of said LL filtered images at locations that are not designated as edge areas by said edge map.