Radiographic marker location

摘要

One or more fiducial marker projections are located in a radiographic image, where the radiographic image is stored as digital image data. The digital image data is filtered with a grayscale morphological filter to enhance potential fiducial marker projections. The filtered digital image data is segmented into one or more seed regions, where each of the one or more seed regions contains a potential fiducial marker projection. The potential fiducial marker projection within each of the one or more seed regions is analyzed and verified and a location of a fiducial marker projection within the radiographic image is determined for each verified potential fiducial marker projection.