Radiation image pickup system, computer having reset operation to reset electric charge of pixels caused by dark current, and computer-readable medium storing program therefor
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United States of America Patent
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Jan 26, 2016
Grant Date -
Sep 25, 2014
app pub date -
Mar 18, 2014
filing date -
Mar 21, 2013
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Abstract
A radiation image pickup system includes a correction coefficient calculation unit that calculates a correction coefficient using pixel output values of a plurality of pixels, and a correction unit that corrects pixel output values of a plurality of pixels using the correction coefficient. A drive control unit repeatedly resets an electric charge caused by a dark current of a plurality of pixels until a detection unit detects a start of radiation exposure. The reset operation is performed simultaneously for n rows that are not adjacent to each other, where n is an integer equal to or greater than 2. The correction coefficient calculation unit calculates the correction coefficient using pixel output values of pixels in a row subjected to the reset operation in a period from a start of radiation exposure to a start detection time and pixel output values of pixels in an adjacent row.
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