Dead detector element detection in flat panels using convolutional neural networks.
Sign Up to like & getrecommendations! Published in 2022 at "Medical physics"
DOI: 10.1002/mp.16030
Abstract: BACKGROUND Independent testing of image quality metrics is important to provide an unbiased determination of medical imaging performance. Due to the underreporting by vendors of dead detector elements, which are elements that do not function… read more here.
Keywords: dead detector; neural networks; flat field; convolutional neural ... See more keywords
Flat-field calibration method for hyperspectral frame cameras
Sign Up to like & getrecommendations! Published in 2019 at "Metrologia"
DOI: 10.1088/1681-7575/ab3261
Abstract: This paper presents a method for characterising spatial responsivity of hyperspectral cameras. Knowing the responsivity of the camera as a function of pixel coordinates allows applying a flat-field correction on image data. The method is… read more here.
Keywords: field; field correction; method; flat field ... See more keywords
Correcting etaloning fringes in hyperspectral image cubes of Jupiter using sensor thickness modeling with flat-field data fitting
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Astronomical Telescopes, Instruments, and Systems"
DOI: 10.1117/1.jatis.6.2.028002
Abstract: Abstract. Evidence of “fringing” due to optical etaloning was observed in narrowband hyperspectral image cubes of Jupiter collected prior to 2018 at the Apache Point Observatory 3.5-m telescope with the New Mexico State University Acousto-optic… read more here.
Keywords: cubes jupiter; image cubes; hyperspectral image; field ... See more keywords
Ring artefact reduction via multi-point piecewise linear flat field correction for X-ray computed tomography.
Sign Up to like & getrecommendations! Published in 2019 at "Optics express"
DOI: 10.1364/oe.27.003217
Abstract: X-ray computed tomography (XCT) is a well-established method for measuring and inspecting an object's internal structure in a non-destructive manner. Ring artefacts are unwanted high- or low-intensity rings that appear in CT images that influence… read more here.
Keywords: field; field correction; flat field; ray computed ... See more keywords