Filters








6,546 Hits in 4.0 sec

Comparative study of autostereoscopic displays for mobile devices

Atanas Boev, Atanas Gotchev, David Akopian, Reiner Creutzburg, Cees G. M. Snoek, Nicu Sebe, Lyndon Kennedy
2011 Multimedia on Mobile Devices 2011; and Multimedia Content Access: Algorithms and Systems V  
The first group is related with the optical parameters of the displays, such as crosstalk or size of sweet spots.  ...  We perform comparative analysis of the visual quality of multiple 3D displays -seven portable ones, and a large 3D television set.  ...  The calculations for our set of 3D displays are shown in Figure 12a . For comparison, we include the 2D displays used in Nokia N900 and Apple iPhone mobile devices.  ... 
doi:10.1117/12.879225 fatcat:q7xlvalkuveo5poaacuc25ut6a

FlashFusion: Real-time Globally Consistent Dense 3D Reconstruction using CPU Computing

Lei Han, Lu Fang
2018 Robotics: Science and Systems XIV  
Aiming at the practical usage of dense 3D reconstruction on portable devices, we propose FlashFusion, a Fast LArge-Scale High-resolution (sub-centimeter level) 3D reconstruction system without the use  ...  using highly-constrained computation, i.e., the CPU computing on portable device.  ...  Abstract-Aiming at the practical usage of dense 3D reconstruction on portable devices, we propose FlashFusion, a Fast LArge-Scale High-resolution (sub-centimeter level) 3D reconstruction system without  ... 
doi:10.15607/rss.2018.xiv.006 dblp:conf/rss/HanF18 fatcat:j4dfhlwbmveddgylzliqswrtzq

Sub-Decimeter VLC 3D Indoor Localization With Handover Probability Analysis

Seyed Mohammad Sheikholeslami, Fahimeh Fazel, Jamshid Abouei, Konstantinos N. Plataniotis
2021 IEEE Access  
Simulation results show an average positioning error of 4.31 centimeters for the proposed localization algorithm in a 5×4×3 m 3 smart environment.  ...  a sample to train a CNN model for indoor localization.  ...  As shown in this figure, the proposed CNN architecture for 3D indoor localization reaches sub-decimeter positioning error for a majority of test samples.  ... 
doi:10.1109/access.2021.3108173 fatcat:l3iwfzkvujcm7al6hlshnufkiu

Evaluation of a UWB localization system in static and dynamic

Mickael Delamare, Rémi Boutteau, Xavier Savatier, Nicolas Iriart
2019 International Conference on Indoor Positioning and Indoor Navigation  
We have evaluated an UWB system to obtain results of the 3D localization of a moving person in buildings environment in real time.  ...  Applications in the context of the industry 4.0 need a precise localization. Indoor localization remains an open problem.  ...  This system can reach sub-centimeter accuracy and can cover 30m 2 .  ... 
dblp:conf/ipin/DelamareBSI19 fatcat:y57hp4a35fg3vg2tzjs6aksuym

Digital Cultural Heritage Preservation in Art Painting: A Surface Roughness Approach to the Brush Strokes

Anna Mironova, Frederic Robache, Raphael Deltombe, Robin Guibert, Ludovic Nys, Maxence Bigerelle
2020 Sensors  
The notion of HyperHeritage highlights the creation of new means of communication for the perception and data processing in cultural heritage.  ...  The Digital Surface HyperHeritage approach also includes the development of a database for archiving and sharing the topographic signature of a painting.  ...  A1A2 3D roughness parameters values computed for a homogenous part of the petal of Van Gogh's sunflower topography.  ... 
doi:10.3390/s20216269 pmid:33153178 pmcid:PMC7663586 fatcat:4dqs5riaijaupbjxp2z5ngpfsi

A Comprehensive Survey of Indoor Localization Methods Based on Computer Vision

Anca Morar, Alin Moldoveanu, Irina Mocanu, Florica Moldoveanu, Ion Emilian Radoi, Victor Asavei, Alexandru Gradinaru, Alex Butean
2020 Sensors  
It provides a survey of indoor localization research solutions, proposing a new classification based on the configuration stage (use of known environment data), sensing devices, type of detected elements  ...  Methods in the first category employ object tracking, while the others map images from mobile cameras with images acquired during a configuration stage or extracted from 3D reconstructed models of the  ...  The centimeter or even sub-centimeter level position accuracy is achieved due to the precise matching mechanism when dealing with synthesized images.  ... 
doi:10.3390/s20092641 pmid:32384605 fatcat:nje6cdhfsrht5krn3z5uavixv4

Fast, large area multiphoton exoscope (FLAME) for macroscopic imaging with microscopic resolution of human skin

Alexander Fast, Akarsh Lal, Amanda F. Durkin, Griffin Lentsch, Ronald M. Harris, Christopher B. Zachary, Anand K. Ganesan, Mihaela Balu
2020 Scientific Reports  
With the ability to provide rapid access to depth resolved images of skin over cm2 area and to generate 3D distribution maps of key sub-cellular skin components such as melanocytic dendrites and melanin  ...  tissue within minutes and provide means for a comprehensive analysis of live or resected thick human skin tissue.  ...  It has the ability to provide 3D images encompassing sub-millimeter to centimeter scale areas of skin tissue within minutes. It allows fast discrimination and 3D virtual staining of melanin.  ... 
doi:10.1038/s41598-020-75172-9 pmid:33093610 fatcat:nrrr225pvnetvimfjzpwqpno6u

The investigation on high-rise building tilting from the issue of land subsidence in Jakarta City

Heri Andreas, Hasanuddin Zainal Abidin, Dina Anggreni Sarsito, Dhota Pradipta, R.D. Wirahadikusumah, B. Hasiholan, P. Kusumaningrum
2019 MATEC Web of Conferences  
Jakarta is a mega city in Indonesia where significant land subsidence (e.g. 1-26 centimeter per year) is happening today.  ...  This technology has capability to create 3D object with milimeter accuracy. Tilting on the building can be seen simply by their verticality.  ...  [4] the yearly value of Jakarta's subsidence generally ranging from 1 to10 centimeter per-year and may reach 20-26 centimeter in certain place, especially in northern part of Jakarta for the recent  ... 
doi:10.1051/matecconf/201927006002 fatcat:daxjh4tp2bbhjksemmj4o75whm

Assembly of Advanced Materials into 3D Functional Structures by Methods Inspired by Origami and Kirigami: A Review

Xin Ning, Xueju Wang, Yi Zhang, Xinge Yu, Dongwhi Choi, Ning Zheng, Dong Sung Kim, Yonggang Huang, Yihui Zhang, John A. Rogers
2018 Advanced Materials Interfaces  
A final section highlights recent work on sub-micrometer scale structures and materials. The article concludes with a summary of opportunities, challenges, and directions for future research.  ...  systems in 3D designs that were previously unachievable. [14] [15] [16] [17] [18] In this way, the techniques of origami/kirigami can enable many classes of nontraditional devices not only at the macroscale  ...  [113] www.advmatinterfaces.de semiconductor industry, and 3) a broad range of length scales and feature sizes, from centimeters to nanometers.  ... 
doi:10.1002/admi.201800284 fatcat:mwaan6nunjeufgdqxor776of4y

Biomedical Engineering II Recent Developments

C. William Hall
1983 Journal of Clinical Engineering  
Challenges and emerging concepts include functionality, powering, robot localization, communication and safety have been proposed, thereby leading to enable an extensive range of medical operations locomotion  ...  This review provides details insight of medical micro-robot developments and the existing solutions for challenges and emerging concepts paving the way for designing such a medical micro-robot for operation  ...  This issue comes to center-stage with sub-mm sized micro-robots for cardiovascular or ophthalmic applications.  ... 
doi:10.1097/00004669-198310000-00014 fatcat:sluitjhtkvhhvfoy7trmianua4

Real-time Quantitative Visual Inspection using Extended Reality

Zaid Abbas Al-Sabbag, Jason Paul Connelly, Chul Min Yeum, Sriram Narasimhan
2021 Journal of Computational Vision and Imaging Systems  
The experiment shows that the proposed method provides sub-centimeter accuracy for the size estimation.  ...  The size of the damage region is computed from the 3D locations of its boundary.  ...  To measure the size of damage, the segmented damage region is geometrically evaluated using 3D scene geometry and camera pose information obtained from the XR device.  ... 
doi:10.15353/jcvis.v6i1.3557 fatcat:po5z2lf2enhydkeetgyqizapji

Enabling Optimization Based Localization for IoT Devices

Paul N. Beuchat, Henrik Hesse, Alexander Domahidi, John Lygeros
2019 IEEE Internet of Things Journal  
In this paper we propose an embedded optimization approach for the localization of IoT devices making use of range measurements from ultra-wideband (UWB) signals.  ...  in a 3D environment.  ...  and to compete in the Microsoft Indoor Localization Competition 2017.  ... 
doi:10.1109/jiot.2019.2904559 fatcat:s4npuecjnrgnxdgvpe7m5nodum

The Newer College Dataset: Handheld LiDAR, Inertial and Vision with Ground Truth [article]

Milad Ramezani, Yiduo Wang, Marco Camurri, David Wisth, Matias Mattamala, Maurice Fallon
2020 arXiv   pre-print
Using the map we inferred centimeter-accurate 6 Degree of Freedom (DoF) ground truth for the position of the device for each LiDAR scan to enable better evaluation of LiDAR and vision localisation, mapping  ...  The dataset combines both built environments, open spaces and vegetated areas so as to test localization and mapping systems such as vision-based navigation, visual and LiDAR SLAM, 3D LIDAR reconstruction  ...  We also thank the personnel of New College for facilitating our data collection. This research was supported by the Innovate UK-funded ORCA Robotics Hub (EP/R026173/1) and the EU H2020 Project THING.  ... 
arXiv:2003.05691v1 fatcat:cf6um7n4gff3ldstt56lwxerpi

High linearity SPAD and TDC array for TCSPC and 3D ranging applications

Federica Villa, Rudi Lussana, Danilo Bronzi, Alberto Dalla Mora, Davide Contini, Simone Tisa, Alberto Tosi, Franco Zappa, Manijeh Razeghi, Eric Tournié, Gail J. Brown
2015 Quantum Sensing and Nanophotonic Devices XII  
Both optical and electrical crosstalk among SPADs and TDCs are negligible. 2D fast movies and 3D reconstructions with centimeter resolution are reported.  ...  provides photon-numberresolved intensity movies at 100 kfps, whereas in photon-timing mode the 10-bit in-pixel TDC provides time-resolved maps (Time-Correlated Single-Photon Counting measurements) or 3D  ...  This array can acquire 2D fast movies at high frame rate up to 100,000 fps, and 3D images with centimeter resolution.  ... 
doi:10.1117/12.2077847 fatcat:zhxd5v5lybhithni7dsvbj2q4m

Multi-functional volumetric meta-optics for color and polarization image sensors [article]

Philip Camayd-Muñoz, Conner Ballew, Gregory Roberts, Andrei Faraon
2020 arXiv   pre-print
Three-dimensional elements, with refractive index distribution structured at sub-wavelength scale, provide an expansive optical design space that can be harnessed for demonstrating multi-functional free-space  ...  optical devices.  ...  The authors thank Maria Alonso-delPino for  ... 
arXiv:2002.12890v1 fatcat:3zj2fm2anjbi7ivr33pizrhke4
« Previous Showing results 1 — 15 out of 6,546 results