Patent ID: 7822178
Filing Date: 2010-10-26
Classification: A61B,G06T

Abstract:
1. A radiographic imaging system comprising: a radiation source for irradiating a subject with radiation, a radiation detector for detecting radiation that has penetrated the subject to acquire a radiographic image, a storage for storing offset correction data, offset correction means for performing offset correction on a radiographic image acquired by the radiation detector using the offset correction data in the storage, dark image acquisition means for acquiring a dark image with the radiation detector at a given timing in the absence of radiation emitted from the radiation source, residual image judgment means for judging whether or not a dark image acquired by the dark image acquisition means contains a residual image resulting from an immediately preceding irradiation, and offset correction data renewal means for producing offset correction data based upon the dark image and storing the offset correction data in the storage for renewal when the residual image judgment means judges the dark image to contain no residual image, and producing no offset correction data when the residual image judgment means judges the dark image to contain a residual image.