Patent ID: 7379529
Filing Date: 2008-05-27
Classification: A61B,G01N,G03B,G06K,G06T

Abstract:
1. A computer program product for generating a density calibration curve from a digital x-ray image of an anatomic structure, the x-ray image including a wedge-shaped calibration phantom having length (L) and varying thickness (T) along the length, the computer program product comprising a computer usable medium having computer readable program code thereon, the computer readable program code comprising: (a) program code for generating an expected calibration curve for the wedge-shaped calibration phantom; (b) program code for measuring attenuation at a multitude of points in the x-ray image including the calibration phantom; and (c) program code for aligning the points measured in step (b) with the expected calibration curve generated in step (a), thereby generating a calibration curve for the image.