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A study of stereoscopic 3D technology development trends on mobile

International Conference on IT Convergence and Security, ICITCS 2012

作者： Kim, Cheong-Ghil Park, Se-Hwan Back, Bong-Jin Whangbo, Taeg-Keun Department of Computer Science Namseoul University Cheonan Korea Republic of ReSEAT Program Korea Institute of Science and Technology Information Seoul Korea Republic of Department of Computer Science Gachon University Seongnam Korea Republic of

ISBN: (纸本)9789400758599

The rapid increase of mobile internet and digital technologies has shown an increased interest in demand for stereoscopic 3D to provide 3D digital contents on mobile. Furthermore, the fast growing LCD technology has already allowed 3D viewings even in Smartphone. As a result, the issues related with stereo imaging have been spotlighted greatly. This paper presents a brief overview of rapid developments in stereoscopic technologies for mobile devices to gain some perspective on the changes and progress with special emphasis on mobile 3D TV services. © 2013 Springer science+Business Media.

关键词： Smartphones

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Measurements of the temperature and E-mode polarization of the cmb from 500 square degrees of sptpol data

arXiv

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arXiv 2017年

作者： Henning, J.W. Sayre, J.T. Reichardt, C.L. Ade, P.A.R. Anderson, A.J. Austermann, J.E. Beall, J.A. Bender, A.N. Benson, B.A. Bleem, L.E. Carlstrom, J.E. Chang, C.L. Chiang, H.C. Cho, H.-M. Citron, R. Corbett Moran, C. Crawford, T.M. Crites, A.T. de Haan, T. Dobbs, M.A. Everett, W. Gallicchio, J. George, E.M. Gilbert, A. Halverson, N.W. Harrington, N. Hilton, G.C. Holder, G.P. Holzapfel, W.L. Hoover, S. Hou, Z. Hrubes, J.D. Huang, N. Hubmayr, J. Irwin, K.D. Keisler, R. Knox, L. Lee, A.T. Leitch, E.M. Li, D. Lowitz, A. Manzotti, A. McMahon, J.J. Meyer, S.S. Mocanu, L. Montgomery, J. Nadolski, A. Natoli, T. Nibarger, J.P. Novosad, V. Padin, S. Pryke, C. Ruhl, J.E. Saliwanchik, B.R. Schaffer, K.K. Sievers, C. Smecher, G. Stark, A.A. Story, K.T. Tucker, C. Vanderlinde, K. Veach, T. Vieira, J.D. Wang, G. Whitehorn, N. Wu, W.L.K. Yefremenko, V. Kavli Institute for Cosmological Physics University of Chicago 5640 South Ellis Avenue ChicagoIL60637 United States Department of Astronomy and Astrophysics University of Chicago 5640 South Ellis Avenue ChicagoIL60637 United States Center for Astrophysics and Space Astronomy Department of Astrophysical and Planetary Sciences University of Colorado BoulderCO80309 United States School of Physics University of Melbourne ParkvilleVIC3010 Australia School of Physics and Astronomy Cardiff University CF24 3AA United Kingdom Fermi National Accelerator Laboratory MS209 P.O. Box 500 BataviaIL60510 United States NIST Quantum Sensors Group 325 Broadway Mailcode 687.08 BoulderCO80305 United States High Energy Physics Division Argonne National Laboratory 9700 S. Cass Avenue ArgonneIL60439 United States Department of Physics University of Chicago 5640 South Ellis Avenue ChicagoIL60637 United States Enrico Fermi Institute University of Chicago 5640 South Ellis Avenue ChicagoIL60637 United States School of Mathematics Statistics & Computer Science University of KwaZulu-Natal Durban South Africa SLAC National Accelerator Laboratory 2575 Sand Hill Road Menlo ParkCA94025 United States TAPIR Walter Burke Institute for Theoretical Physics California Institute of Technology 1200 E California Blvd PasadenaCA91125 United States California Institute of Technology MS 249-17 1216 E. California Blvd. PasadenaCA91125 United States Department of Physics University of California BerkeleyCA94720 United States Department of Physics McGill University 3600 Rue University MontrealQCH3A 2T8 Canada Canadian Institute for Advanced Research CIFAR Program in Cosmology and Gravity TorontoONM5G 1Z8 Canada Harvey Mudd College 301 Platt Blvd. ClaremontCA91711 United States European Southern Observatory Karl-Schwarzschild-Str. 2 Garching85748 Germany Department of Physics University of Colorado BoulderCO80309 United States Astronomy Department University

We present measurements of the E-mode polarization angular auto-power spectrum (EE) and temperature-E-mode cross-power spectrum (TE) of the cosmic microwave background (CMB) using 150 GHz data from three seasons of SPTpol observations. We report the power spectra over the spherical harmonic multipole range 50 1050 and ` > 1475, respectively. The observations cover 500 deg2, a fivefold increase in area compared to previous SPTpol analyses, which increases our sensitivity to the photon diffusion damping tail of the CMB power spectra enabling tighter constraints on ΛCDM model extensions. After masking all sources with unpolarized flux > 50 mJy we place a 95% confidence upper limit on residual polarized point-source power of D` = `(` + 1)C`/2π 2 at ` = 3000, suggesting that the EE damping tail dominates foregrounds to at least ` = 4050 with modest source masking. We find that the SPTpol dataset is in mild tension with the ΛCDM model (2.1 σ), and different data splits prefer parameter values that differ at the ∼ 1 σ level. When fitting SPTpol data at ` 1000 results in a preference for a higher value of the expansion rate (H0 = 71.3 ± 2.1 km s−1Mpc−1 ) and a lower value for present-day density fluctuations (σ8 = 0.77 ± 0.02). Copyright © 2017, The Authors. All rights reserved.

关键词： Power spectrum

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Dark energy survey year 1 results: Methodology and projections for joint analysis of galaxy Clustering, galaxy lensing, and CMB lensing two-point functions

arXiv

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arXiv 2018年

作者： Baxter, E.J. Omori, Y. Chang, C. Giannantonio, T. Kirk, D. Krause, E. Blazek, J. Bleem, L. Choi, A. Crawford, T.M. Dodelson, S. Gruen, D. Holder, G.P. Jain, B. Jarvis, M. MacCrann, N. Nicola, A. Pandey, S. Prat, J. Samuroff, S. Sánchez, C. Sheldon, E. Troxel, M.A. Zuntz, J. Abbott, T.M.C. Abdalla, F.B. Annis, J. Avila, S. Bechtol, K. Bertin, E. Brooks, D. Buckley-Geer, E. Burke, D.L. Rosell, A. Carnero Kind, M. Carrasco Carretero, J. Castander, F.J. Cawthon, R. Cunha, C.E. D'Andrea, C.B. Da Costa, L.N. Davis, C. De Vicente, J. DePoy, D.L. Diehl, H.T. Doel, P. Eifler, T.F. Estrada, J. Evrard, A.E. Flaugher, B. Fosalba, P. Frieman, J. García-Bellido, J. Gaztanaga, E. Gerdes, D.W. Gruendl, R.A. Gschwend, J. Gutierrez, G. Hartley, W.G. Hollowood, D. Hoyle, B. James, D.J. Kent, S. Kuehn, K. Kuropatkin, N. Lahav, O. Lima, M. Maia, M.A.G. March, M. Marshall, J.L. Melchior, P. Menanteau, F. Miquel, R. Plazas, A.A. Roodman, A. Rykoff, E.S. Sanchez, E. Schindler, R. Schubnell, M. Sevilla-Noarbe, I. Smith, M. Smith, R.C. Soares-Santos, M. Sobreira, F. Suchyta, E. Swanson, M.E.C. Tarle, G. Walker, A.R. Weller, J. Department of Physics and Astronomy University of Pennsylvania PhiladelphiaPA19104 United States Kavli Institute for Particle Astrophysics and Cosmology Stanford University 452 Lomita Mall StanfordCA94305 United States Dept. of Physics Stanford University 382 Via Pueblo Mall StanfordCA94305 United States Department of Physics McGill Space Institute McGill University MontrealQCH3A 2T8 Canada Kavli Institute for Cosmological Physics University of Chicago ChicagoIL60637 United States Institute of Astronomy University of Cambridge Madingley Road CambridgeCB3 0HA United Kingdom Kavli Institute for Cosmology University of Cambridge Madingley Road CambridgeCB3 0HA United Kingdom Universitäts-Sternwarte Fakultät für Physik Ludwig-Maximilians Universität München Scheinerstr. 1 München81679 Germany Department of Physics & Astronomy University College London Gower Street LondonWC1E 6BT United Kingdom Department of Astronomy/Steward Observatory 933 North Cherry Avenue TucsonAZ85721-0065 United States Jet Propulsion Laboratory California Institute of Technology 4800 Oak Grove Dr. PasadenaCA91109 United States Center for Cosmology and Astro-Particle Physics Ohio State University ColumbusOH43210 United States Observatoire de Sauverny Versoix1290 Switzerland Department of Physics University of Chicago 5640 South Ellis Avenue ChicagoIL60637 United States Argonne National Laboratory 9700 South Cass Avenue LemontIL60439 United States Scottish Universities Physics Alliance Institute for Astronomy University of Edinburgh Royal Observatory Blackford Hill EdinburghEH9 3HJ United Kingdom Center for Cosmology and AstroParticle Physics Ohio State University 191 West Woodruff Avenue ColumbusOH43210 United States Department of Astronomy and Astrophysics University of Chicago ChicagoIL60637 United States Observatories of the Carnegie Institution of Washington 813 Santa Barbara St. PasadenaCA91101 United States Kavli Institute for Particle

Optical imaging surveys measure both the galaxy density and the gravitational lensing-induced shear fields across the sky. Recently, the Dark Energy Survey (DES) collaboration used a joint fit to two-point correlations between these observables to place tight constraints on cosmology (DES Collaboration et al. 2018). In this work, we develop the methodology to extend the DES year one joint probes analysis to include cross-correlations of the optical survey observables with gravitational lensing of the cosmic microwave background (CMB) as measured by the South Pole Telescope (SPT) and Planck. Using simulated analyses, we show how the resulting set of five two-point functions increases the robustness of the cosmological constraints to systematic errors in galaxy lensing shear calibration. Additionally, we show that contamination of the SPT+Planck CMB lensing map by the thermal Sunyaev-Zel'dovich effect is a potentially large source of systematic error for two-point function analyses, but show that it can be reduced to acceptable levels in our analysis by masking clusters of galaxies and imposing angular scale cuts on the two-point functions. The methodology developed here will be applied to the analysis of data from the DES, the SPT, and Planck in a companion work. Copyright © 2018, The Authors. All rights reserved.

关键词： Galaxies

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Q&A

引用

Design Management Review 2016年第1期27卷

作者： Hillary Hartley Garren Givens Jennifer Pahlka The deputy executive director of 18F the US government's in‐house digital services consultancy based inside the General Services Administration. (18F got its name from its address. The GSA is located at the intersection of 18th Street and F Street in Washington DC.) Hartley co‐founded 18F to be a laboratory of sorts—staffed by developers and designers hailing from both inside and outside government working together to build digital services that could be used across agencies. The executive director of the Presidential Innovation Fellows (PIF) program which was established by the White House's Office of Science and Technology Policy in 2012 to pair talented diverse technologists and innovators with top civil servants and change‐makers working at the highest levels of the federal government. In August 2015 President Obama signed an Executive Order making the Presidential Innovation Fellows program a permanent part of the federal government going forward housed within the General Services Administration (GSA). He is also the deputy director of 18F (see Q&A page 13). Jennifer Pahlka is the founder and executive director of Code for America a San Francisco‐based nonprofit organization that according to the Washington Post “is the technology world's equivalent of the Peace Corps or Teach for America.” Known for her TED talk “Coding a Better Government” Pahlka came to the job after several years and various roles in the computer game industry. She was also one of the founders of the US Digital Service (see page 35).

She was a founder of 18F, the US government's in‐house digital services consultancy, and now she sees her workplace as a laboratory of sorts, staffed by designers as well as developers. As the executive director of the Presidential Innovation Fellows program, he looks to recruit the best and the brightest in technical, design, and entrepreneurial talent. Known for her TED talk, “Coding a Better Government,” Jennifer Pahlka helps design and technology professionals live the idea of government by the people, for the people .

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Error analysis for RADAR neighbor matching localization in linear logarithmic strength varying Wi-Fi environment

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The Scientific World Journal 2014年第1期2014卷 647370页

作者： Zhou, Mu Tian, Zengshan Xu, Kunjie Yu, Xiang Wu, Haibo Chongqing Key Lab of Mobile Communications Technology Chongqing University of Posts and Telecommunications Chongqing 400065 China Department of Electronic and Computer Engineering Hong Kong University of Science and Technology Kowloon Hong Kong Graduate Telecommunications and Networking Program University of Pittsburgh Pittsburgh PA 15260 United States China Internet Research Lab Computer Network Information Center Chinese Academy of Sciences Beijing 100190 China

This paper studies the statistical errors for the fingerprint-based RADAR neighbor matching localization with the linearly calibrated reference points (RPs) in logarithmic received signal strength (RSS) varying Wi-Fi environment. To the best of our knowledge, little comprehensive analysis work has appeared on the error performance of neighbor matching localization with respect to the deployment of RPs. However, in order to achieve the efficient and reliable location-based services (LBSs) as well as the ubiquitous context-awareness in Wi-Fi environment, much attention has to be paid to the highly accurate and cost-efficient localization systems. To this end, the statistical errors by the widely used neighbor matching localization are significantly discussed in this paper to examine the inherent mathematical relations between the localization errors and the locations of RPs by using a basic linear logarithmic strength varying model. Furthermore, based on the mathematical demonstrations and some testing results, the closed-form solutions to the statistical errors by RADAR neighbor matching localization can be an effective tool to explore alternative deployment of fingerprint-based neighbor matching localization systems in the future. © 2014 Mu Zhou et al.

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Restoring surfaces after removing objects in indoor 3D point clouds

Restoring surfaces after removing objects in indoor 3D point...

引用

4th Symposium on Information and Communication technology, SoICT 2013

作者： Doan, Nghia Huu Pham, Duy Dinh, Tien Ba Dinh, Thang Ba Advanced Program in Computer Science VNU-University of Science Ho Chi Minh City Viet Nam Faculty of Information Technology VNU-University of Science Ho Chi Minh City Viet Nam

ISBN: (纸本)9781450324540

In this paper, we present fast approaches for object segmentation and surface restoration of indoor 3D point clouds, which are the results of 3D reconstruction methods or range scanners. These two problems are significant in constructing a augmented reality system using a range camera to build a virtual environment and provide the interaction mechanisms to the virtual model. For point-cloud segmentation, we apply a density-based clustering algorithm to extract the desired object after removing its ground planes. This low-complexity method gives stable results with high accuracy. After the segmented object has been removed, a restoration algorithm is proposed in such a case that the holes on the ground plane are revealed by removed objects. These holes are there because the corresponding surfaces are hidden by the segmented objects in the scanner phase. The process of filling the holes includes an object-ground-plane detection, a geometric restoration and a color fusion step. The newly added points are directly interpolated from the existing object points, which cover the holes in the original point clouds. Our approaches are experimented through a variety of test datasets and yield promising results. Copyright © 2013 ACM.

关键词： Restoration

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Towards bio-inspired place recognition over multiple spatial scales

Towards bio-inspired place recognition over multiple spatial...

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2013 Australasian Conference on Robotics and Automation, ACRA 2013

作者： Chen, Zetao Jacobson, Adam Erdem, Uʇur M. Hasselmo, Michael E. Milford, Michael School of Electrical Engineering and Computer Science Queensland University of Technology Australia Center for Memory and Brain and Graduate Program for Neuroscience Boston University United States

ISBN: (纸本)9780980740448

This paper presents a new multi-scale place recognition system inspired by the recent discovery of overlapping, multi-scale spatial maps stored in the rodent brain. By training a set of Support Vector Machines to recognize places at varying levels of spatial specificity, we are able to validate spatially specific place recognition hypotheses against broader place recognition hypotheses without sacrificing localization accuracy. We evaluate the system in a range of experiments using cameras mounted on a motorbike and a human in two different environments. At 100% precision, the multiscale approach results in a 56% average improvement in recall rate across both datasets. We analyse the results and then discuss future work that may lead to improvements in both robotic mapping and our understanding of sensory processing and encoding in the mammalian brain.

关键词： Brain mapping

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Using emotional context from article for contextual music recommendation 13

Using emotional context from article for contextual music re...

引用

21st ACM International Conference on Multimedia, MM 2013

作者： Chen, Chih-Ming Tsai, Ming-Feng Liu, Jen-Yu Yang, Yi-Hsuan Department of Computer Science Program in Digital Content and Technology National Chengchi University Taipei 11605 Taiwan Research Center for Information Technology Innovation Academia Sinica Taipei 11564 Taiwan

ISBN: (纸本)9781450324045

This paper proposes a context-aware approach that recommends music to a user based on the user's emotional state predicted from the article the user writes. We analyze the association between user-generated text and music by using a real-world dataset with tripartite information collected from the social blogging website LiveJournal. The audio information represents various perceptual dimensions of music listening, including danceability, loudness, mode, and tempo;the emotional text information consists of bag-of-words and three dimensional affective states within an article: valence, arousal and dominance. To combine these factors for music recommendation, a factorization machine- based approach is taken. Our evaluation shows that the emotional context information mined from user-generated articles does improve the quality of recommendation, com- paring to either the collaborative filtering approach or the content-based approach. Copyright © 2013 ACM.

关键词： Collaborative filtering

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A statistical learning method for identification of analysis classes from requirements in korean

International Journal of Multimedia and Ubiquitous Engineeri...

引用

International Journal of Multimedia and Ubiquitous Engineering 2013年第1期8卷 255-264页

作者： Jeong, Hyoungil Seo, Jungyun Park, Soojin Department of Computer Science and Engineering Sogang University 121-742 Korea Republic of Interdisciplinary Program of Integrated Biotechnology Sogang University 121-742 Korea Republic of Sogang Institute of Advanced Technology Sogang University 121-742 Korea Republic of

Identification of analysis classes is a critical design decision to be made early in the design phase in software development. Although incorrect identification of analysis classes can diminish the quality of a whole software design, it still heavily relies on the expertise and experience of the developer and has been ad-hoc. The majority existing works on identification of analysis classes focus on the rule-based approaches. However, the rule-based approaches which are used for analyzing sentence structures cannot be adopted for the language, which has very flexible word order like Korean. In this paper, we proposed a statistical learning method for identification of analysis classes from requirements sentences in Korean. The approach is evaluated using the precision and recall of the automatically extracted candidate classes from real requirements sentences in Korean. The result shows that we can promise numerically measurable enhancement of performance on solving the automatic identification problem of analysis classes using statistical methods, in the real use case specifications of a banking system.

关键词： Software design

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A technique to package fiber bragg grating sensors for strain and temperature measurements

A technique to package fiber bragg grating sensors for strai...

引用

作者： Dreyer, Uilian De Morais Sousa, Kleiton Somenzi, Jonas De Lourenço Junior, Ivo Da Silva, Jean Carlos Cardozo De Oliveira, Valmir Kalinowski, Hypolito José Electrical Engineering Graduated Program-PPGEE Federal University of Technology-Paraná Pato Branco 85503-390 Brazil Graduate Program on Electrical Engineering and Applied Computer Science-CPGEI Federal University of Technology-Paraná Curitiba ZIP 80230-901 Brazil

This paper reports an effective method of packaging a fiber Bragg grating (FBG) for the simultaneous measurement of temperature and strain. The technique consists of embedding two fiber Bragg grating sensors inside a polymeric material with different geometrical characteristics. The mechanical and thermal characterizations of the optical transducer were performed. Then a matrix equation used measurements of the wavelength shifts from the two sensors and yielded information about the temperature and strain coefficients. The preliminary results demonstrate the feasibility of the encapsulation technique allowing measurements of temperature and strain in smart structures and harsh environments. The experimental procedure provides robustness to the sensor and the matrix equation approach has the potential to determine simultaneously the strain and temperature coefficients. © 2013 SBMO/SBMag.

关键词： Fiber Bragg gratings

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