Image processing apparatus and computer readable storage medium
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United States of America Patent
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Nov 2, 2021
Grant Date -
May 28, 2020
app pub date -
Nov 22, 2019
filing date -
Nov 22, 2018
priority date (Note) -
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Abstract
An image processing apparatus includes a hardware processor that: calculates a representative signal value in a region where no signal value variations attributable to dynamic states of an object are present, in each of a plurality of frame images acquired by consecutively applying radiation onto the object a plurality of times, and extracts high-frequency components of changes over time in the calculated representative signal values; and corrects signal value variations attributable to a fact that an irradiation amount varies each time the radiation is applied, by subtracting the extracted high-frequency components from the plurality of frame images, respectively, or dividing the plurality of frame images by the extracted high-frequency components, respectively.
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