Radiation imaging system, control method for the same, and program

摘要

A radiation imaging system includes a radiation sensor unit and a main control unit. The radiation sensor unit includes, a radiation sensor that detects a radiation image based on radiation that passes through an object, a sensor characteristics correction unit that performs sensor characteristics correction on the radiation image based on image reception characteristics of the radiation sensor, an image analysis unit that analyzes the radiation image in which the sensor characteristics correction has been performed and calculates an analysis parameter, and a transmission unit that transmits the analysis parameter as a gradation conversion parameter and the radiation image which has been subjected to the sensor characteristics correction to the main control unit. The main control unit includes a gradation conversion processing unit that performs gradation conversion processing on the radiation image which has been subjected to the sensor characteristics correction using the gradation conversion parameter.

主权项

1. A radiation imaging system that includes a radiation sensor unit configured to generate radiation image data based on a radiation ray that passes through an object and a main control unit configured to receive the radiation image data,
the radiation sensor unit comprising:
a radiation sensor configured to detect the radiation ray that passes through the object as a radiation image signal;an analog to digital converter configured to convert the radiation image signal into a digital signal as the radiation image data;a sensor characteristics correction unit configured to perform sensor characteristics correction on the radiation image data based on image reception characteristics of the radiation sensor;an image analysis unit configured to calculate, based on the radiation image data in which the sensor characteristics correction is performed, an analysis parameter; anda transmission unit configured to transmit the analysis parameter as a gradation conversion parameter and the radiation image data which has been subjected to the sensor characteristics correction to the main control unit; and the main control unit comprising:
a reception unit configured to receive the gradation conversion parameter and the radiation image data which has been subjected to the sensor characteristics correction;a gradation conversion processing unit configured to perform gradation conversion processing on the radiation image data which has been subjected to the sensor characteristics correction based on the gradation conversion parameter,wherein, when the transmission unit transmits the gradation conversion parameter together with the radiation image data which has been subjected to the sensor characteristics correction, the transmission unit embeds the gradation conversion parameter in a header portion of the radiation image data which has been subjected to the sensor characteristics correction in transmitting the gradation conversion parameter,the main control unit further includes a reception determination unit configured to determine whether the radiation image data transmitted by the transmission unit more than or equal to a minimum processing amount of data necessary to perform the gradation conversion processing based on the gradation conversion parameter received at the main control unit, andwhen the reception determination unit determines that the radiation image data more than or equal to the minimum processing amount is received, the gradation conversion processing unit immediately starts the gradation conversion processing.