Results 21 to 30 of about 1,253,282 (331)
Extended Depth-of-Field Intraocular Lenses: An Update
Asia - Pacific Journal of Ophthalmology, 2020 Extended depth-of-focus (EDOF) is a new intraocular lens (IOL) technology in the treatment of presbyopia. In contrast to multifocal (MF) IOLs, EDOF lenses create a single elongated focal point, rather than several foci, to enhance depth of focus. In this
P. Kanclerz +3 more
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Deep Learning Microscopy: Enhancing Resolution, Field-of-View and Depth-of-Field of Optical Microscopy Images Using Neural Networks [PDF]
Conference on Lasers and Electro-Optics, 2017 We demonstrate the ability of deep convolutional neural networks to significantly enhance the spatial resolution, field-of-view and depth-of-field of optical microscopy images, without any hardware modification to the imaging system.
Y. Rivenson +5 more
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Extended Depth-of-Field of a Miniature Optical Endoscope Using Wavefront Coding
Applied Sciences, 2020 Endoscopic imaging is an indispensable tool for visual inspection of surfaces in hard-to-access places. The conventional optical endoscope only enables imaging the regions that lie close to the focal plane, and therefore improving the depth of field (DOF)
Lei Yang +6 more
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Reconstruction of small components using photogrammetry: a quantitative analysis of the depth of field influence using a miniature step gauge [PDF]
Metrology and Measurement Systems, 2021 In this work, authors investigated the effect of the Depth of Field (DoF) reduction, arising when the acquisition of small objects is carried out with a photogrammetry-based system using a Digital Single Lens Reflex (DSLR) camera and the structure from ...
Maria Grazia Guerra +3 more
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Deep learning extended depth-of-field microscope for fast and slide-free histology
Proceedings of the National Academy of Sciences of the United States of America, 2020 Significance Traditional microscopy suffers from a fixed trade-off between depth-of-field (DOF) and spatial resolution—the higher the desired spatial resolution, the narrower the DOF. We present DeepDOF, a computational microscope that allows us to break
Lingbo Jin +11 more
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Micromachines, 2023 Since the effect of the facet braiding phenomenon, the display quality of reconstructed image degrades with increasing depth of field in tabletop three-dimensional light-field display.
Peiren Wang +6 more
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Depth estimation and validation of plenoptic light field camera
, 2023 A light field (LF) camera can record both the spatial and directional information of light rays in a three-dimensional (3D) scene. This is different from traditional photography, which sums up all the light rays to record their intensity and discard the ...
Hossain, Md. Moinul +4 more
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Extended depth-of-field in holographic image reconstruction using deep learning based auto-focusing and phase-recovery [PDF]
Optica, 2018 Holography encodes the three dimensional (3D) information of a sample in the form of an intensity-only recording. However, to decode the original sample image from its hologram(s), auto-focusing and phase-recovery are needed, which are in general ...
Yichen Wu +6 more
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St. Petersburg Polytechnical University Journal: Physics and Mathematics, 2020 In the paper, the influence of phase distribution over the objects’ space on resolution and depth of field of computer-generated holograms has been investigated.
Koreshev Sergey +3 more
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Subjective method of refractometry and depth of focus
Journal of Optometry, 2012 Purpose: To study the impact of the depth of focus on subjective refraction and distribution of myopic and hyperopic refractions. Methods: A total of 450 eyes of 305 subjects in the age range of 23–34 years were recruited for the study. A distribution of
Nikolai M. Sergienko +2 more
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