Results 11 to 20 of about 1,253,282 (331)
Depth‐of‐Field of the Accommodating Eye [PDF]
Optometry and Vision Science, 2014 ABSTRACT Purpose To obtain experimental values of the depth‐of‐field (DOFi) of the human eye for different accommodative states. Methods First, the monochromatic ocular wavefront of seven eyes from young subjects ...
Bernal-Molina, Paula +3 more
openaire +4 more sources
Trilobite-inspired neural nanophotonic light-field camera with extreme depth-of-field. [PDF]
Nat Commun, 2022 A unique bifocal compound eye visual system found in the now extinct trilobite, Dalmanitina socialis, may enable them to be sensitive to the light-field information and simultaneously perceive both close and distant objects in the environment.
Fan Q +11 more
europepmc +2 more sources
DoF-NeRF: Depth-of-Field Meets Neural Radiance Fields [PDF]
ACM Multimedia, 2022 Neural Radiance Field (NeRF) and its variants have exhibited great success on representing 3D scenes and synthesizing photo-realistic novel views. However, they are generally based on the pinhole camera model and assume all-in-focus inputs.
Zijin Wu +5 more
semanticscholar +1 more source
Depth of field of multi-slice electron ptychography: Investigating energy and convergence angle. [PDF]
J MicroscMulti‐slice electron ptychography has attracted significant interest in recent years, thanks to notable experimental successes in ultra‐high resolution, depth‐resolved imaging of atomic structure.
Allars F, Maiden A, Batey DJ, Allen CS.
europepmc +2 more sources
Depth-of-field enhancement in integral imaging by selective depth-deconvolution
Journal of Display Technology, 2014 One of the major drawbacks of the integral imaging technique is its limited depth of field. Such limitation is imposed by the numerical aperture of the microlenses.
Saavedra, Genaro +17 more
core +2 more sources
Fast Multi-Focus Image Fusion Using Inner Channel Prior
IEEE Access, 2021 In this paper, we propose a simple but effective sharpness prior—inner channel prior—to detect the focused area of multi-focus images. The inner channel prior is a kind of location feature of natural image sharpness.
Tingna Kuang, Feihong Yu, Xuxiang Ni
doaj +1 more source
Chip-scale metalens microscope for wide-field and depth-of-field imaging
Advanced Photonics, 2022 . Microscopy is very important in research and industry, yet traditional optical microscopy suffers from the limited field-of-view (FOV) and depth-of-field (DOF) in high-resolution imaging.
Xin Ye +9 more
semanticscholar +1 more source
Depth of field in dental photography and methods for its control [PDF]
Stomatološki glasnik Srbije, 2014 The emergence of photographs has been a milestone in the development of society by making life richer and more comprehensive. Dental photography as part of clinical medical photography plays a role primarily as a document, but also as a tool for
Dukić Zlatomir
doaj +1 more source
Trade-Off Asymmetric Profile for Extended-Depth-of-Focus Ocular Lens
Photonics, 2022 We explore the possibility of extending the depth of focus of an imaging lens with an asymmetric quartic phase-mask, while keeping the aberration within a relatively low level.
Lenny A. Romero +2 more
doaj +1 more source
Photonics, 2023 Increasing the depth of field (DOF) is a crucial issue for imaging through scattering media. In this paper, an improved genetic algorithm is used to modulate the wavefront of light through scattering media, by which high-quality refocusing and imaging ...
Tongyu Han +5 more
doaj +1 more source