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:
Sep. 03, 2013
Filed:
Dec. 04, 2009
Tetsuya Tsuji, Kanagawa, JP;
Tetsuya Tsuji, Kanagawa, JP;
FUJIFILM Corporation, Tokyo, JP;
Abstract
An X-ray imaging system is provided with an FPD and an image processing apparatus. The image processing apparatus is provided with a CPU, a coefficient table, an interpolator and a residual image remover. The CPU acquires an image taken with the FPD. A plurality of coefficients each corresponding to a parameter that changes an attenuation curve are previously stored in the coefficient table. The attenuation curve represents time-varying attenuation of a residual image of the previous image. In a case where the coefficient corresponding to a parameter of the present exposure is not contained in the coefficient table, an appropriate coefficient is calculated by interpolation based on the coefficients contained in the coefficient table. The residual image remover calculates the residual image based on the stored coefficient or the calculated coefficient and a time lapse between the previous and subsequent exposures, and removes the residual image from the present image.