DIGITAL RADIOGRAPHY DETECTOR IMAGE READOUT SYSTEM AND PROCESS

摘要

A radiographic imaging system and digital detector detect extraneous signals during DR detector image readout and compensate or remove extraneous signal artifacts from radiographic images. Novel capture and post processing procedures prevent undesirable noise artifacts from appearing in final radiographic images.

主权项

1. A method of image correction for a digital radiographic detector, the method comprising:
obtaining at least one dark frame; obtaining at least one dark leakage frame, wherein the at least one dark leakage frame is different from the at least one dark frame; obtaining at least one image data frame; obtaining at least one exposure leakage frame; obtaining at least one image lag data frame; dark correcting the at least one image data frame and the at least one image lag data frame using the at least one dark frame; dark correcting the at least one exposure leakage frame using the at least one dark leakage frame; correcting the at least one dark corrected image lag data frame with a noise correction process; correcting the at least one dark corrected exposure leakage frame with the noise correction process; and combining the noise corrected, dark corrected at least one exposure leakage frame, the at least one noise corrected, dark corrected image lag data frame, and the at least one dark corrected image data frame to obtain a corrected image frame.