Image processing apparatus and image processing method for estimating fixed-pattern noise attributable to image sensor
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United States of America Patent
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Sep 17, 2019
Grant Date -
Jun 1, 2017
app pub date -
Nov 17, 2016
filing date -
Dec 1, 2015
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Abstract
An image processing method includes the steps of: generating, based on data of a plurality of images acquired by performing imaging using a same image sensor, a weight coefficient corresponding to each image so that a weight coefficient corresponding to an image of which a brightness change is smooth is relatively large; integrating the data of the plurality of images using the weight coefficients to generate data of an integrated image; applying smoothing to the data of the integrated image to generate data of a smoothed integrated image; and generating, based on the data of the integrated image and the data of the smoothed integrated image, data of estimated fixed-pattern noise which is an estimated value of fixed-pattern noise attributable to the image sensor.
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