Imaging system

摘要

An imaging system comprises: a plurality of pixels each for converting light, converted from radiation by a conversion unit, into an electrical signal; an extracting unit that extracts, based on an image formed based on output signals from the pixels, a pixel with noise generated by the radiation that has transmitted through the conversion unit to arrive at the pixels; and a correcting unit that performs correction to remove the noise with respect to an output signal from the extracted pixel, wherein the extracting unit extracts the pixel with the noise by performing division between first and second images, the first image being formed based on the output signals from the pixels in accordance with the radiation to the conversion unit during a first period, the second image being formed based on these output signals in accordance with that radiation during a second period after the first period.

主权项

1. An X-ray radiation imaging system comprising:
a conversion unit configured to convert x-ray radiation into light; a plurality of pixels each configured to convert the light converted by the conversion unit into an electrical signal; an extracting unit configured to extract, based on an image formed based on output signals output from the plurality of pixels, a pixel in which noise is generated due to the radiation that has transmitted through the conversion unit to arrive at the plurality of pixels; and a correcting unit configured to perform correction to remove the noise with respect to an output signal output from the pixel extracted by the extracting unit, wherein the extracting unit is configured to extract the pixel in which the noise is generated by performing division between a first image and a second image, the first image being formed based on the output signals output from the plurality of pixels in accordance with the x-ray radiation exposed to the conversion unit during a first period in an x-ray radiation exposure period during which the x-ray radiation is exposed to the conversion unit, the second image being formed based on the output signals output from the plurality of pixels in accordance with the x-ray radiation exposed to the conversion unit during a second period provided after the first period in an x-ray radiation exposure period.