Patent ID: 7508970
Filing Date: 2009-03-24
Classification: G06K,G06T

Abstract:
1. A computer-accessible storage medium having executable instructions to detect an edge of an image, the executable instructions capable of directing a processor to perform: locating a plurality of candidate collimation edges in a plurality of projected edge images, the locating further comprising creating edge images of each side of an input image, creating projection-space images of each side of the input image, selecting a peak in each of the projection-space images of each side and converting peak coordinates in the projection-space images to line equations corresponding to the candidate collimation edges in the image intensity data, the plurality of projected edge images associated with image intensity data in a memory, the plurality of projected edge images being stored in the memory; determining validity of each of the candidate collimation edges based on statistical analysis of the image intensity data; and storing the validity in the memory.