Patent ID: 8494282
Filing Date: 2013-07-23
Classification: G06K,G06T

Abstract:
1. A method for removing blur in an image, comprising: calculating a set of differences in pixel values between pixels in a single image of an object, captured by an imaging device, while the object was moving with respect to the imaging device along an axis of motion, wherein the pixels are along the axis of motion and where the object has at least one black and white edge perpendicular to the axis of motion; separating the set of differences in pixel values into a first group and a second group, wherein the first group of differences in pixel values corresponds to differences in pixel values due to noise, and the second group of differences in pixel values corresponds to differences in pixel values due to noise and motion along the axis of motion; determining an estimate of the blur using the second group; removing blur from an image using the estimate of the blur; wherein separating the set of differences in pixel values into a first group and a second group is done using a single threshold value and wherein the threshold value is set equal to (min(d(x,y))+max(d(x,y)))/2 where min(d(x,y)) is the minimum magnitude difference between two pixel values and max(d(x,y)) is the maximum magnitude difference between two pixel values.