Title:
RADIATION IMAGING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2015/005262
Kind Code:
A1
Abstract:
The present invention addresses the issue of providing a radiation imaging system capable of obtaining good image quality. The radiation imaging system has: a detection unit (205) that detects image information and includes a plurality of pixels arranged in a matrix, said pixels converting radiation into electric charge and outputting pixel values; a drive control means (204) that causes image information corresponding to radiation exposure to be output, by causing the plurality of pixels to reset until a signal indicating radiation exposure is input, stopping the reset operation of the plurality of pixels and causing electric charge to accumulate once a signal indicating radiation exposure has been input, then causing the pixel values of the plurality of pixels to be read once the radiation exposure has been completed; a correction coefficient acquisition means (207) that calculates a correction coefficient on the basis of image information output by the detection unit; and an image correction means (208) that corrects the image information output by the detection unit, by using the correction coefficient calculated by the correction coefficient acquisition means.
Inventors:
IWASHITA ATSUSHI (JP)
KAMESHIMA TOSHIO (JP)
YAGI TOMOYUKI (JP)
TAKENAKA KATSURO (JP)
OKADA HIDEYUKI (JP)
SATO SHO (JP)
SATO ERIKO (JP)
RYU TAKUYA (JP)
KAMESHIMA TOSHIO (JP)
YAGI TOMOYUKI (JP)
TAKENAKA KATSURO (JP)
OKADA HIDEYUKI (JP)
SATO SHO (JP)
SATO ERIKO (JP)
RYU TAKUYA (JP)
Application Number:
PCT/JP2014/068018
Publication Date:
January 15, 2015
Filing Date:
July 07, 2014
Export Citation:
Assignee:
CANON KK (JP)
International Classes:
H04N5/32; A61B6/00; G01T7/00; H04N5/357
Foreign References:
JP2012191599A | 2012-10-04 | |||
JP2012176155A | 2012-09-13 | |||
JP2010124025A | 2010-06-03 |
Attorney, Agent or Firm:
ABE Takuma et al. (JP)
Takuma Abe (JP)
Takuma Abe (JP)
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