Articles with "fixed pattern" as a keyword



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Fixed Pattern Noise Reduction for Infrared Images Based on Cascade Residual Attention CNN

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Published in 2020 at "Neurocomputing"

DOI: 10.1016/j.neucom.2019.10.054

Abstract: Abstract Existing fixed pattern noise reduction (FPNR) methods are easily affected by the motion state of the scene and working condition of the image sensor, which leads to over smooth effects, ghosting artifacts as well… read more here.

Keywords: fixed pattern; pattern noise; noise reduction; attention ... See more keywords
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Shot Noise and Fixed-Pattern Noise Effects on Digital Hologram Reconstruction

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Published in 2020 at "Optics and Lasers in Engineering"

DOI: 10.1016/j.optlaseng.2020.106461

Abstract: Abstract Digital holography allows registering and reconstructing information about 3D objects and 3D scenes. There are several limitations related to reconstructed image quality: speckle noise, twin images, zero order, light (shot noise) and dark temporal… read more here.

Keywords: reconstruction; fixed pattern; pattern noise; shot noise ... See more keywords
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3D intraoral scanning system using fixed pattern mask and tunable-focus lens

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Published in 2019 at "Measurement Science and Technology"

DOI: 10.1088/1361-6501/ab3edf

Abstract: We report the fabrication and performance of a three-dimensional (3D) intraoral scanner based on structured illumination microscopy. The scanner uses a tunable-focus lens for depth scanning and a pattern mask for projecting structured light onto… read more here.

Keywords: focus; fixed pattern; focus lens; pattern mask ... See more keywords
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A Reference-Free Image Index to Simultaneously Quantify Infrared-Imaging Fixed-Pattern-Noise and Blur Artifacts

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Published in 2021 at "IEEE Access"

DOI: 10.1109/access.2021.3109561

Abstract: A reference-free image index to jointly assess infrared-imaging fixed-pattern-noise and blur artifacts is proposed in this work. The proposed index is based on tuned-spatial-domain filtering, which works by combining two Laplace operators to simultaneously quantify… read more here.

Keywords: fixed pattern; pattern noise; blur; infrared imaging ... See more keywords