Patent ID: 6731783
Filing Date: 2004-05-04
Classification: H04N,H05G

Abstract:
An apparatus for radiographing an object, comprising:a radiation generating unit which includes a radiation source for generating radiation; a two-dimensional sensor configured to receive the radiation and convert the received radiation into radiographic image data; an acquisition unit configured to acquire image data from said two-dimensional sensor; a specifying unit configured to specify an irradiated region which is a region on said two-dimensional sensor irradiated with radiation; and a control unit configured to control said acquisition unit and said specifying unit, wherein said control unit is operable in a first mode in which said specifying unit is activated to specify the irradiated region, and in a second mode in which said acquisition unit is controlled to read image data only from a partial region of said two-dimensional sensor, which partial region is determined based on the irradiated region specified in the first mode, and said control unit switches the first mode and the second mode mutually at a predetermined timing.