Results 41 to 50 of about 3,649,900 (278)

Deep Eyes: Binocular Depth-from-Focus on Focal Stack Pairs

open access: yes, 2020
Human visual system relies on both binocular stereo cues and monocular focusness cues to gain effective 3D perception. In computer vision, the two problems are traditionally solved in separate tracks.
A Newell   +10 more
core   +1 more source

D-wave Bose-Einstein condensation and the London penetration depth in superconducting cuprates [PDF]

open access: yes, 1998
We show that bipolaron formation leads to a d-wave Bose-Einstein condensate in cuprates. It is the bipolaron energy dispersion rather than a particular pairing interaction which is responsible for the d-wave symmetry.
A.S Alexandrov   +36 more
core   +2 more sources

Muon Spin Rotation Measurement of the Magnetic Field Penetration Depth in Ba(Fe0.93 Co0.07)2 As2 : Evidence for Multiple Superconducting Gaps [PDF]

open access: yes, 2009
We have performed transverse field muon spin rotation measurements of single crystals of Ba(Fe$_{0.93}$Co$_{0.07})_2$As$_2$ with the applied magnetic field along the $\hat{c}$ direction.
Aczel, A. A.   +11 more
core   +3 more sources

Use of Miniature Step Gauges to Assess the Performance of 3D Optical Scanners and to Evaluate the Accuracy of a Novel Additive Manufacture Process

open access: yesSensors, 2020
In this work, we show how miniature step gauges featuring unidirectional and bidirectional lengths can be used to assess the performance of 3D optical scanners as well as the accuracy of novel Additive Manufacturing (AM) processes. A miniature step gauge
Maria Grazia Guerra   +3 more
doaj   +1 more source

Integral Imaging Display System Based on Human Visual Distance Perception Model

open access: yesSensors, 2023
In an integral imaging (II) display system, the self-adjustment ability of the human eye can result in blurry observations when viewing 3D targets outside the focal plane within a specific range.
Lijin Deng   +3 more
doaj   +1 more source

Large Depth of Range Maxwellian-Viewing SMV Near-Eye Display Based on a Pancharatnam-Berry Optical Element

open access: yesIEEE Photonics Journal, 2022
In order to overcome the accommodation and convergence (A-C) conflict that commonly causes visual fatigue in AR display, we propose a Maxwellian-viewing-super-multi-view (MV-SMV) near-eye display system based on a Pancharatnam-Berry optical element (PBOE)
Lin Wang   +4 more
doaj   +1 more source

Flexible Depth of Field Photography [PDF]

open access: yesIEEE Transactions on Pattern Analysis and Machine Intelligence, 2008
The range of scene depths that appear focused in an image is known as the depth of field (DOF). Conventional cameras are limited by a fundamental trade-off between depth of field and signal-to-noise ratio (SNR). For a dark scene, the aperture of the lens must be opened up to maintain SNR, which causes the DOF to reduce.
Sujit, Kuthirummal   +3 more
openaire   +2 more sources

Joint Blind Motion Deblurring and Depth Estimation of Light Field

open access: yes, 2018
Removing camera motion blur from a single light field is a challenging task since it is highly ill-posed inverse problem. The problem becomes even worse when blur kernel varies spatially due to scene depth variation and high-order camera motion.
A Beck   +12 more
core   +1 more source

Depth-Enhanced Holographic Super Multi-View Maxwellian Display Based on Variable Filter Aperture

open access: yesMicromachines, 2023
The super multi-view (SMV) near-eye display (NED) effectively provides depth cues for three-dimensional (3D) displays by projecting multiple viewpoint images or parallax images onto the retina simultaneously. Previous SMV NED suffers from a limited depth
Kefeng Tu   +4 more
doaj   +1 more source

Depth of Field Affects Perceived Depth in Stereographs [PDF]

open access: yesACM Transactions on Applied Perception, 2014
Although it has been reported that depth of field influences depth perception in nonstereo photographs, it remains unclear how depth of field affects depth perception under stereo viewing conditions. We showed participants stereo photographs with different depths of field using a Wheatstone stereoscope and a commercially available 3D TV.
Zhang, Tingting   +4 more
openaire   +2 more sources

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