Results 31 to 40 of about 3,238,598 (346)
Electromagnetic 3D subsurface imaging with source sparsity for a synthetic object [PDF]
Inverse Problems 31 (2015) 125004, 2016 This paper concerns electromagnetic 3D subsurface imaging in connection with sparsity of signal sources. We explored an imaging approach that can be implemented in situations that allow obtaining a large amount of data over a surface or a set of orbits but at the same time require sparsity of the signal sources.
arxiv +1 more source
Three-dimensional block matching using orthonormal tree-structured haar transform for multichannel images [PDF]
, 2020 Multichannel images, i.e., images of the same object or scene taken in different spectral bands or with different imaging modalities/settings, are common in many applications.
Ito, Izumi, Pizurica, Aleksandra
core +1 more source
Jitter Elimination in Shape Recovery by using Adaptive Neural Network Filter
Sensors, 2019 Three-dimensional (3D) cameras are expensive because they employ additional charged coupled device sensors and optical elements, e.g., lasers or complicated scanning mirror systems.
Sung-An Lee +2 more
doaj +1 more source
Volume Holographic Hyperspectral Imaging [PDF]
, 2004 A volume hologram has two degenerate Bragg-phase-matching dimensions and provides the capability of volume holographic imaging. We demonstrate two volume holographic imaging architectures and investigate their imaging resolution, aberration, and ...
Barbastathis, George +2 more
core +1 more source
Correlation Plenoptic Imaging With Entangled Photons
Technologies, 2016 Plenoptic imaging is a novel optical technique for three-dimensional imaging in a single shot. It is enabled by the simultaneous measurement of both the location and the propagation direction of light in a given scene.
Francesco V. Pepe +4 more
doaj +1 more source
Leptokurtic Portfolio Theory [PDF]
Eur. Phys. J. B 50, 141-145 (2006), 2005 The question of optimal portfolio is addressed. The conventional Markowitz portfolio optimisation is discussed and the shortcomings due to non-Gaussian security returns are outlined. A method is proposed to minimise the likelihood of extreme non-Gaussian drawdowns of the portfolio value.
arxiv +1 more source
General theorem of spatial coherence: application to three-dimensional imaging [PDF]
, 1996 Three-dimensional imaging of incoherent light sources by the Michelson stellar interferometer is considered. When the interferometer’s pinholes are arranged properly, its output result is equivalent to a two-dimensional Fourier hologram that stores ...
Rosen, Joseph, Yariv, Amnon
core +1 more source
A bright organic NIR-II nanofluorophore for three-dimensional imaging into biological tissues
Nature Communications, 2018 Fluorescence imaging of biological systems in the second near-infrared (NIR-II, 1000–1700 nm) window has shown promise of high spatial resolution, low background, and deep tissue penetration owing to low autofluorescence and suppressed scattering of long
Hao Wan +18 more
semanticscholar +1 more source
Single shot three-dimensional imaging of dilute atomic clouds [PDF]
, 2014 Light field microscopy methods together with three dimensional (3D) deconvolution can be used to obtain single shot 3D images of atomic clouds. We demonstrate the method using a test setup which extracts three dimensional images from a fluorescent $^{87}$
Kasevich, Mark, Sakmann, Kaspar
core +2 more sources
Artificial Intelligence Applications in Orthodontics
Journal of the California Dental Association, 2023 Objective This manuscript describes strategies for assessment of precision of several diagnostic artificial intelligence (AI) tools in orthodontics, available open-source image analysis platforms, as well as the use of three-dimensional (3D) surface ...
Felicia Miranda +18 more
doaj +1 more source