Results 11 to 20 of about 5,929,903 (194)
Spatial and Angular Resolution Enhancement of Light Fields Using Convolutional Neural Networks [PDF]
, 2018 Light field imaging extends the traditional photography by capturing both spatial and angular distribution of light, which enables new capabilities, including post-capture refocusing, post-capture aperture control, and depth estimation from a single shot.
Gul, M. Shahzeb Khan +1 more
core +2 more sources
Coherent population trapping in quantized light field [PDF]
, 2005 A full quantum treatment of coherent population trapping (CPT) is given for a system of resonantly coupled atoms and electromagnetic field. We develop a regular analytical method of the construction of generalized dark states (GDS). It turns out that GDS
A. M Tumaĭkin +9 more
core +1 more source
Tying Knots in Light Fields [PDF]
Physical Review Letters, 2013 We construct a new family of null solutions to Maxwell's equations in free space whose field lines encode all torus knots and links. The evolution of these null fields, analogous to a compressible flow along the Poynting vector that is both geodesic and shear-free, preserves the topology of the knots and links.
Kedia, Hridesh +3 more
openaire +3 more sources
Light field moment imaging [PDF]
Optics Letters, 2013 We introduce a novel imaging technique called light field moment imaging (LMI) that uses the continuity equation to extract the first angular moments of a light field. We use these moments to construct perspective views of a scene. Examples of LMI in photography and microscopy are presented.
Antony, Orth, Kenneth B, Crozier
openaire +2 more sources
Plasmonic metafiber for all-fiber Q-switched cylindrical vector lasers
Nanophotonics, 2023 Metafibers, by integrating metasurface at the optical fiber tip, are emerging as the significant optical coupling platforms for nanophotonics and fiber-optic communities. Here, we propose a plasmonic metafiber for converting the fundamental mode to first-
Hua He +6 more
doaj +1 more source
Light field super resolution through controlled micro-shifts of light field sensor [PDF]
, 2018 Light field cameras enable new capabilities, such as post-capture refocusing and aperture control, through capturing directional and spatial distribution of light rays in space.
Gunturk, Bahadir K., Mukati, M. Umair
core +2 more sources
Stokes meta-hologram toward optical cryptography
Nature Communications, 2022 Achieving optical cryptography scheme with both high capacity and security is highly desirable. Here, authors report a Stokes meta-hologram with a hierarchical encryption strategy that allows vector encryptions to produce depth-masked ciphertexts.
Xuyue Guo +7 more
doaj +1 more source
Silicon Nanocrystal Field-Effect Light-Emitting Devices [PDF]
, 2006 We describe the operation of a light-emitting device in which silicon nanocrystals are electrically pumped via the field-effect electroluminescence (EL) mechanism.
Atwater, Harry A. +4 more
core +1 more source
Compressive Light Field Sensing [PDF]
IEEE Transactions on Image Processing, 2012 We propose a novel design for light field image acquisition based on compressive sensing principles. By placing a randomly coded mask at the aperture of a camera, incoherent measurements of the light passing through different parts of the lens are encoded in the captured images.
S. Derin Babacan +5 more
openaire +2 more sources
A Multispectral Light Field Dataset and Framework for Light Field Deep Learning [PDF]
IEEE Access, 2020 Deep learning undoubtedly has had a huge impact on the computer vision community in recent years. In light field imaging, machine learning-based applications have significantly outperformed their conventional counterparts. Furthermore, multi- and hyperspectral light fields have shown promising results in light field-related applications such as ...
Maximilian Schambach, Michael Heizmann
openaire +4 more sources