Patent ID: 7573057
Filing Date: 2009-08-11
Classification: H01L

Abstract:
1. A radiation image information detecting method, wherein an image signal is acquired from a solid-state radiation detector, which is capable of recording image information with respect to each of pixels when radiation carrying the image information is irradiated to the solid-state radiation detector, and which is capable of outputting the image signal representing the image information having been recorded, and wherein a correction of the image signal is made in accordance with offset information having been previously acquired from the solid-state radiation detector, the method comprising: previously acquiring high frequency offset component information from the solid-state radiation detector; acquiring low frequency offset component information from the solid-state radiation detector before an operation for recording the image information on the solid-state radiation detector is performed; and correcting the image signal, which has been outputted from the solid-state radiation detector having been subjected to the operation for recording the image information, in accordance with the offset information, which is constituted of the high frequency offset component information and the low frequency offset component information, wherein the acquiring of high frequency offset component information from the solid-state radiation detector comprises: acquiring an image offset signal from a solid-state radiation detector; converting the image offset signal to a digital offset signal; applying a filter to the image offset signal to separate the high frequency offset component information of the image offset signal and the low frequency component information of the image offset signal; and storing the high frequency offset component information.