The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 22, 2017
Filed:
Jul. 07, 2014
Canon Kabushiki Kaisha, Tokyo, JP;
Atsushi Iwashita, Saitama-shi, JP;
Toshio Kameshima, Kumagaya, JP;
Tomoyuki Yagi, Honjo, JP;
Katsuro Takenaka, Honjo, JP;
Hideyuki Okada, Honjo, JP;
Sho Sato, Saitama, JP;
Eriko Sato, Tokyo, JP;
Takuya Ryu, Kokubunji, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A radiation imaging system capable of obtaining excellent image quality is provided. The radiation imaging system includes a detection unit () configured to include a plurality of pixels which are arranged in a matrix and which output pixel values by converting radial rays into charges and to output image information, driving control means () for causing the plurality of pixels to perform a resetting operation until a signal indicating irradiation with radial rays is supplied and to stop the resetting operation and perform an operation of accumulating charges when the signal indicating irradiation with radial rays is supplied, and for performing an operation of reading pixel values of the plurality of pixels after the irradiation with radial rays is terminated so as to output image information corresponding to the irradiation with radial rays, correction coefficient obtaining means () for calculating correction coefficients in accordance with the image information output from the detection unit, and image correction means () for correcting the image information output from the detection unit using the correction coefficients calculated by the correction coefficient obtaining means.