Title:
放射線撮像装置および放射線撮像装置の制御方法
Document Type and Number:
Japanese Patent JP6674222
Kind Code:
B2
Abstract:
A radiation imaging apparatus that has a plurality of pixels capable of outputting an image signal in accordance with an irradiation of radiation comprises a photoelectric conversion unit which has a first capacitance and a second capacitance as charge accumulation capacitances and a gain correction unit configured to correct a pixel value in relation to a dose of the irradiated radiation based on an image signal outputted in accordance with a charge accumulated by the photoelectric conversion unit. The gain correction unit changes an interval of gain correction points at which to perform correction in accordance with a switch from a first capacitance to a second capacitance.
Inventors:
Tsukuda
Application Number:
JP2015201538A
Publication Date:
April 01, 2020
Filing Date:
October 09, 2015
Export Citation:
Assignee:
Canon Inc
International Classes:
A61B6/00; H04N5/32; H04N5/365; H04N5/367; H04N5/374; H04N5/3745
Domestic Patent References:
| JP2015012546A | ||||
| JP2013024784A | ||||
| JP2011087781A |
Attorney, Agent or Firm:
Yasunori Otsuka
Yasuhiro Otsuka
Shiro Takayanagi
Shuji Kimura
Osamu Shimoyama
Nagakawa Yukimitsu
Yasuhiro Otsuka
Shiro Takayanagi
Shuji Kimura
Osamu Shimoyama
Nagakawa Yukimitsu