Patent ID: 8121382
Filing Date: 2012-02-21
Classification: G06K,G06T

Abstract:
1. A method for setting a filtering control variable for a noise reduction in a medical image, comprising: determining edge thicknesses for image data of the medical image by performing a variance measurement for image pixels in the image data; generating a histogram from the edge thicknesses; determining a maximum value of the histogram; fitting a Gaussian curve to the histogram; determining a threshold value for a noise and a structure as a function of a standard deviation of the Gaussian curve; classifying the image data into a noise region and a structure region based on the threshold value; measuring the noise and the structure in the noise and the structure regions; determining a standard noise deviation and a standard structure deviation in the noise and the structure regions; comparing the standard noise deviation with the standard structure deviation; and setting the filtering control variable as a function of the comparison.