Results 31 to 40 of about 85,248 (291)
APL Photonics, 2023 The optical technique of imaging through scattering media based on the optical memory effect (OME) sustains a limited field-of-view (FOV). Therefore, a prior-free imaging method is proposed to reconstruct multiple objects through the scattering media ...
Yi Wei +5 more
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Hyperuniformity in amorphous speckle patterns [PDF]
, 2018 Hyperuniform structures possess the ability to confine and drive light, although their fabrication is extremely challenging. Here we demonstrate that speckle patters obtained by a superposition of randomly arranged sources of Bessel beams can be used to ...
Ancora, Daniele +4 more
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Scientific Reports, 2021 The artefact known as speckle can plague numerous imaging applications where the narrow linewidth of laser light is required, which includes laser projection and medical imaging.
David J. Hansford +3 more
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IEEE Access, 2023 The mode mixing and mode dispersion in the multimode fiber (MMF) will produce complex speckle patterns in the distal end of the fiber as an object passes through the MMF, rendering image reconstruction to be a challenging task.
Yanzhu Zhang, Hao Wu, He Zhao, Yong Chen
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Exploiting speckle correlations to improve the resolution of wide-field fluorescence microscopy [PDF]
, 2014 Fluorescence microscopy is indispensable in nanoscience and biological sciences. The versatility of labeling target structures with fluorescent dyes permits to visualize structure and function at a subcellular resolution with a wide field of view. Due to
Bertolotti, Jacopo +5 more
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Scientific Reports, 2021 The dark-field signal measures the small-angle scattering strength and provides complementary diagnostic information. This is of particular interest for lung imaging due to the pronounced small-angle scatter from the alveolar microstructure.
Sebastian Meyer +4 more
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Speckle noise reduction techniques for high-dynamic range imaging [PDF]
, 2007 High-dynamic range imaging from space in the visible, aiming in particular at the detection of terrestrial exoplanets, necessitates not only the use of a coronagraph, but also of adaptive optics to correct optical defects in real time.
Belikov +23 more
core +3 more sources
Calibration-free speckle matrix imaging
Light: Science & Applications, 2022 Unknown speckle patterns can be used to image targets embedded in complex scattering media 100 times faster than previous techniques based on carefully calibrated illuminations.
Philipp del Hougne
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Speckle-Shifting Ghost Imaging
IEEE Photonics Journal, 2016 In this paper, we introduce speckle-shifting ghost imaging (SSGI) which uses several corresponding shifted groups of speckle patterns instead of random speckle patterns in “computational ghost imaging” (CGI) to improve the performance of ...
Tianyi Mao +5 more
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Enhancement of microvessel in laser speckle image using gaussian kernel template [PDF]
Journal of Innovative Optical Health Sciences, 2019 Laser speckle contrast imaging (LSCI) is an optical imaging method, which can monitor microvascular flow variation directly without addition of any ectogenous dye.
Yameng Zhang +4 more
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