US 12,422,573 B2
Radiation imaging apparatus, radiation imaging system, and method for controlling radiation imaging apparatus
Yuki Iwabuchi, Kanagawa (JP)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Jul. 21, 2023, as Appl. No. 18/356,862.
Claims priority of application No. 2022-117630 (JP), filed on Jul. 25, 2022.
Prior Publication US 2024/0027635 A1, Jan. 25, 2024
Int. Cl. G01T 1/20 (2006.01)
CPC G01T 1/20182 (2020.05) 20 Claims
OG exemplary drawing
 
1. A radiation imaging apparatus comprising:
a radiation detector including a plurality of pixels arranged in a matrix and configured to output a signal based on a charge accumulated in the plurality of pixels; and
one or more controllers being configured to acquire first output information and then acquire second output information being information about the charge accumulated in the plurality of pixels without radiation irradiation on the radiation detector, the first output information being information about the charge accumulated in the plurality of pixels with radiation irradiation on the radiation detector,
wherein the first output information and the second output information are information for acquiring a corrected radiation image, and
wherein an output value of a predetermined row that is included in the first output information is an output value of the charge accumulated over a first period, and an output value of the predetermined row that is included in the second output information is an output value of the charge accumulated over a second period, the second period being longer than the first period.