Patent ID: 7529397
Filing Date: 2009-05-05
Classification: G06K

Abstract:
1. A method of processing a digital image having an object and a selected pixel from the digital image, comprising: using a processor to perform the steps of: selecting a second pixel in the digital image; determining whether an Fractional Anisotropy (FA) value associated with the second pixel is greater than or equal to a first threshold; determining whether a difference between a Dominant Eigen Vector (DEV) value associated with the second pixel and a DEV value associated with the selected pixel is less than or equal to a second threshold; and if the FA value associated with the second pixel is greater than or equal to the first threshold and the difference between the DEV values is less than or equal to the second threshold, then establish a set having the second pixel and the selected pixel as elements selecting a plurality of pixels in the digital image; for one of the plurality of pixels, determining whether an FA value associated with the one of the plurality of pixels is greater than or equal to the first threshold, determining whether a difference between a DEV value associated with the one of the plurality of pixels and a DEV value associated with the selected pixel is less than or equal to a second threshold, and if the FA value associated with the one of the plurality of pixels is greater than or equal to the first threshold and the diffrence between a DEV value associated with the one of the plurality of pixels and a DEV value associated with the selected pixel is less than or equal to the second threshold, then include the one of the plurality of pixels in the set; and, repeating the previous step for each of the plurality of pixels.