Patent ID: 8249322
Filing Date: 2012-08-21
Classification: H04N

Abstract:
1. A signal line correction method for use with a radiation image detector, which generates charges by receiving radiation and records a radiation image by storing the charges, having multiple signal lines and radiation image signals corresponding to the charges are read out by the multiple signal lines, the method comprising the steps of: detecting a faulty signal line by threshold judgment based on the radiation image signals read out from the radiation image detector; setting a signal line adjacent to the faulty signal line as an abnormal signal line and setting a signal line adjacent to the abnormal signal line and having a normal amount of signal as a reference signal line; calculating the difference between a signal read out by the abnormal signal line and a signal read out by the reference signal line as a correction amount; calculating a low frequency component correction amount by removing a high frequency component from the calculated correction amount; and performing a correction on the signal read out by the abnormal signal line by adding the calculated low frequency component correction amount to the signal read out by the abnormal signal line.