Patent ID: 8000501
Filing Date: 2011-08-16
Classification: G01N,G06T

Abstract:
1. A method for processing image data in order to detect abnormalities in a web, wherein the web is monitored by at least one camera, whereby at least one image comprising of plurality of pixels is generated for creating the image data (x(n)), and the image data (x(n)) is stored in a memory, wherein the image data (x(n)) is filtered by a processor for creating a filtered image data (y(n)), wherein the current filtered image data (y(n)) is obtained by weighting the current image data (x(n), a 0 , b 0 ) and at least one of image data (x(n)) from emphasis angles and filtered image data (y(n)) from emphasis angles; and by combining the obtained weighted current image data and the obtained at least one of weighted image data from emphasis angles and weighted filtered image data from emphasis angles, wherein the emphasis angles are dependent on the result of previous filtering; and wherein the filtering of the current image data (x(n)) is controlled by at least one nonlinear algorithm; and followed by thresholding the created filtered image data (y(n)).