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4th International Workshop on Statistical Atlases and Computational Models of the Heart: Imaging and Modelling Challenges, STACOM 2013, Held in Conjunction with MICCAI 2013

作者： Neumann, Dominik Grbic, Sasa Mansi, Tommaso Voigt, Ingmar Rabbah, Jean-Pierre Siefert, Andrew W. Saikrishnan, Neelakantan Yoganathan, Ajit P. Yuh, David D. Ionasec, Razvan Ioan Imaging and Computer Vision Siemens Corporate Technology Princeton NJ United States Pattern Recognition Lab. University of Erlangen-Nuremberg Germany Computer Aided Medical Procedures Technical University Munich Germany Wallace H. Coulter Department of Biomedical Engineering Georgia Institute of Technology Emory University Atlanta GA United States Section of Cardiac Surgery Department of Surgery Yale University New Haven CT United States

ISBN: (纸本)9783642542671

Valvular heart disease affects a high number of patients, exhibiting significant mortality and morbidity rates. Mitral Valve (MV) Regurgitation, a disorder in which the MV does not close properly during systole, is among its most common forms. Traditionally, it has been treated with MV replacement. However, recently there is an increased interest in MV repair procedures, providing better long-term survival, better preservation of heart function, lower risk of complications, and usually eliminating the need for long-term use of blood thinners (anticoagulants). These procedures are complex and require an experienced surgeon and elaborate pre-operative planning. Hence, there is a need for efficient tools for training and planning of MV repair interventions. Computational models of valve function have been developed for these purposes. Nevertheless, state-of-the-art models remain approximations of real anatomy with considerable simplifications, since current modalities are limited by image quality. Hence, there is an important need to validate such low-fidelity models against comprehensive ex-vivo data to assess their clinical applicability. As a first step towards this aim, we propose an integrated pipeline for the validation of MV geometry and function models estimated in ex-vivo TEE data with respect to ex-vivo microCT data. We utilize a controlled experimental setup for ex-vivo imaging and employ robust machine learning and optimization techniques to extract reproducible geometrical models from both modalities. Using one exemplary case, we demonstrate the validity of our framework. © Springer-Verlag Berlin Heidelberg 2014.

关键词： Pipelines

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Multi-core based HEVC hardware decoding system

Multi-core based HEVC hardware decoding system

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IEEE International Conference on Multimedia and Expo Workshops (ICMEW)

作者： Hyunmi Kim Seunghyun Cho Kyungjin Byun Nak-Woong Eum Department of Computer Software Engineering Korea University of Science and Technology Korea Multimedia Processor Research Section Electronics and Telecommunications Research Institute Daejeon Korea

ISBN: (纸本)9781479947164

In this demo, a scalable HEVC hardware decoder is demonstrated for various applications including UHD. The architecture includes a control logic for multi-core management and flexible in-loop filters that can process boundaries of picture partitions without a separate in-loop filter unit from the pipeline. Two-level parallel processing approach makes the decoder operate in real-time for high-performance applications. The demonstration on FPGA prototype board shows the efficiency of the proposed scalable architecture achieved by multi-core design. The system is estimated to be able to decode UHD video coded by HEVC in real-time.

关键词： Decoding Multicore processing Pipelines Parallel processing Video coding Hardware Streaming media

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Search for heavy resonances decaying to a Z boson and a photon in pp collisions at s=13 TeV with the ATLAS detector

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Physics Letters, section B: Nuclear, Elementary Particle and High-Energy Physics 2017年 764卷 11-30页

作者： Aaboud, M. Aad, G. Abbott, B. Abdallah, J. Abdinov, O. Abeloos, B. Aben, R. AbouZeid, O.S. Abraham, N.L. Abramowicz, H. Abreu, H. Abreu, R. Abulaiti, Y. Acharya, B.S. Adachi, S. Adamczyk, L. Adams, D.L. Adelman, J. Adomeit, S. Adye, T. Affolder, A.A. Agatonovic-Jovin, T. Agricola, J. Aguilar-Saavedra, J.A. Ahlen, S.P. Ahmadov, F. Aielli, G. Akerstedt, H. Åkesson, T.P.A. Akimov, A.V. Alberghi, G.L. Albert, J. Albrand, S. Alconada Verzini, M.J. Aleksa, M. Aleksandrov, I.N. Alexa, C. Alexander, G. Alexopoulos, T. Alhroob, M. Ali, B. Aliev, M. Alimonti, G. Alison, J. Alkire, S.P. Allbrooke, B.M.M. Allen, B.W. Allport, P.P. Aloisio, A. Alonso, A. Alonso, F. Alpigiani, C. Alshehri, A.A. Alstaty, M. Alvarez Gonzalez, B. Álvarez Piqueras, D. Alviggi, M.G. Amadio, B.T. Amako, K. Amaral Coutinho, Y. Amelung, C. Amidei, D. Amor Dos Santos, S.P. Amorim, A. Amoroso, S. Amundsen, G. Anastopoulos, C. Ancu, L.S. Andari, N. Andeen, T. Anders, C.F. Anders, G. Anders, J.K. Anderson, K.J. Andreazza, A. Andrei, V. Angelidakis, S. Angelozzi, I. Anger, P. Angerami, A. Anghinolfi, F. Anisenkov, A.V. Anjos, N. Annovi, A. Antel, C. Antonelli, M. Antonov, A. Anulli, F. Aoki, M. Aperio Bella, L. Arabidze, G. Arai, Y. Araque, J.P. Arce, A.T.H. Arduh, F.A. Arguin, J-F. Argyropoulos, S. Arik, M. Armbruster, A.J. Armitage, L.J. Arnaez, O. Arnold, H. Arratia, M. Arslan, O. Artamonov, A. Artoni, G. Artz, S. Asai, S. Asbah, N. Ashkenazi, A. Åsman, B. Asquith, L. Assamagan, K. Astalos, R. Atkinson, M. Atlay, N.B. Augsten, K. Avolio, G. Axen, B. Ayoub, M.K. Azuelos, G. Baak, M.A. Baas, A.E. Baca, M.J. Bachacou, H. Bachas, K. Backes, M. Backhaus, M. Bagiacchi, P. Bagnaia, P. Bai, Y. Baines, J.T. Baker, O.K. Baldin, E.M. Balek, P. Balestri, T. Balli, F. Balunas, W.K. Banas, E. Banerjee, Sw. Bannoura, A.A.E. Barak, L. Barberio, E.L. Barberis, D. Barbero, M. Barillari, T. Barisits, M-S Barklow, T. Barlow, N. Barnes, S.L. Barnett, B.M. Barnett, R.M. Barnovska-Blenessy, Z. Baroncelli, A. Barone, G. Barr, A.J. Barranco Navarro, L. Barreiro, F. Barreiro Gui Department of Physics University of Adelaide Adelaide Australia Physics Department SUNY Albany Albany NY United States Department of Physics University of Alberta Edmonton AB Canada Department of Physics Ankara University Ankara Turkey Istanbul Aydin University Istanbul Turkey Division of Physics TOBB University of Economics and Technology Ankara Turkey LAPP CNRS/IN2P3 Université Savoie Mont Blanc Annecy-le-Vieux France High Energy Physics Division Argonne National Laboratory Argonne IL United States Department of Physics University of Arizona Tucson AZ United States Department of Physics The University of Texas at Arlington Arlington TX United States Physics Department University of Athens Athens Greece Physics Department National Technical University of Athens Zografou Greece Department of Physics The University of Texas at Austin Austin TX United States Institute of Physics Azerbaijan Academy of Sciences Baku Azerbaijan Institut de Física d'Altes Energies (IFAE) The Barcelona Institute of Science and Technology Barcelona Spain Institute of Physics University of Belgrade Belgrade Serbia Department for Physics and Technology University of Bergen Bergen Norway Physics Division Lawrence Berkeley National Laboratory University of California Berkeley CA United States Department of Physics Humboldt University Berlin Germany Albert Einstein Center for Fundamental Physics Laboratory for High Energy Physics University of Bern Bern Switzerland School of Physics and Astronomy University of Birmingham Birmingham United Kingdom Department of Physics Bogazici University Istanbul Turkey Department of Physics Engineering Gaziantep University Gaziantep Turkey Istanbul Bilgi University Faculty of Engineering and Natural Sciences Istanbul Turkey Bahcesehir University Faculty of Engineering and Natural Sciences Istanbul Turkey Centro de Investigaciones Universidad Antonio Narino Bogota Colombia INFN Sezione di Bologna Italy Dipartimento di Fis

This Letter presents a search for new resonances with mass larger than 250 GeV, decaying to a Z boson and a photon. The dataset consists of an integrated luminosity of 3.2 fb−1 of pp collisions collected at s=13 TeV w... 详细信息

This Letter presents a search for new resonances with mass larger than 250 GeV, decaying to a Z boson and a photon. The dataset consists of an integrated luminosity of 3.2 fb⁻¹ of pp collisions collected at s=13 TeV with the ATLAS detector at the Large Hadron Collider. The Z bosons are identified through their decays either to charged, light, lepton pairs (e⁺e⁻, μ⁺μ⁻) or to hadrons. The data are found to be consistent with the expected background in the whole mass range investigated and upper limits are set on the production cross section times decay branching ratio to Zγ of a narrow scalar boson with mass between 250 GeV and 2.75 TeV. © 2016 The Author(s)

关键词： Z bosons CROSS sections (Nuclear physics) PHOTON-photon interactions LARGE Hadron Collider (France & Switzerland) DILEPTON production NUCLEAR counters

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YaRep: A Personal 3D Printing Simulator

YaRep: A Personal 3D Printing Simulator

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International Conference on Virtual Reality and Visualization (ICVRV)

作者： Xun Luo Jingwen Wang Nan Liu Zhichen Zhao Yichen Zhou School of Computer and Communication Engineering Tianjin University of Technology Tianjin China Connected Universal Experiences SIGHT Group IEEE San Diego Section San Diego CA

Personal 3D printers and printing applications are being embraced by consumers across the world, thanks to the strong demands from both hobbyist makers and users. Despite of such popularity, several barriers hinder their wider adoption: affordability - financial burden to buy and try various printer designs and models; operability - requirement of skills to tune the printer and printing parameters; efficiency - lengthy time spent during the printing process, and sizable amount of printing materials used on unsatisfactory printouts. With these observations, we propose to use simulation technology for personal 3D printing. The proposed techniques were reduced to a preliminary implementation called YaRep simulator. Based on the study results on ease-of-use metrics of several state of art personal 3D printers, YaRep clearly exhibits benefits and potential to improve the user experience for 3D printing fans.

关键词： Three-dimensional displays Printing Printers Solid modeling Software Manufacturing computer numerical control

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Proxy Server Experiment and Network Security with Changing Nature of the Web

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International Journal of Communications, Network and System Sciences 2014年第12期7卷 519-528页

作者： Olatunde Abiona Adeniran Oluwaranti Ayodeji Oluwatope Surura Bello Clement Onime Mistura Sanni Lawrence Kehinde Department of Computer Information Systems Indiana University Northwest Garry USA Department of Computer Science and Engineering Obafemi Awolowo University Ile-Ife Nigeria Information and Communication Technology Section Abdus Salam International Centre for Theoretical Physics Trieste Italy Department of Electrical and Electronic Engineering Obafemi Awolowo University Ile-Ife Nigeria

The total reliance on internet connectivity and World Wide Web (WWW) based services is forcing many organizations to look for alternative solutions for providing adequate access and response time to the demand of their ever increasing users. A typical solution is to increase the bandwidth;this can be achieved with additional cost, but this solution does not scale nor decrease users perceived response time. Another concern is the security of their network. An alternative scalable solution is to deploy a proxy server to provide adequate access and improve response time as well as provide some level of security for clients using the network. While some studies have reported performance increase due to the use of proxy servers, one study has reported performance decrease due to proxy server. We then conducted a six-month proxy server experiment. During this period, we collected access logs from three different proxy servers and analyzed these logs with Webalizer a web server log file analysis program. After a few years, in September 2010, we collected log files from another proxy server, analyzed the logs using Webalizer and compared our results. The result of the analysis showed that the hit rate of the proxy servers ranged between 21% - 39% and over 70% of web pages were dynamic. Furthermore clients accessing the internet through a proxy server are more secured. We then conclude that although the nature of the web is changing, the proxy server is still capable of improving performance by decreasing response time perceived by web clients and improved network security.

关键词： Proxy Server Network Security Hit Ratio Webalizer Proxy Log Analysis

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Geo-ICT solutions for emergency response

Geo-ICT solutions for emergency response

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International Conference on Information and Communication Technologies for Disaster Management (ICT-DM)

作者： Sisi Zlatanova Ashfaq A. Khokhar Marcos R. S. Borges Shunroku Yamamoto Section GIS Technology Delft University of Technology The Netherlands Department of Electrical and Computer Engineering Illinois Institute of Technology Chicago Federal University of Rio de Janeiro Brazil Earthquake Disaster Prevention Disaster Prevention Technology Division Railway Technical Research Institute Japan

Geo-information technology and systems for emergency management have advanced greatly in the last few years. Systems for early warning, command and control, and decision-making have been successfully implemented in many countries and regions all over the world. Many of these systems can meet requirements for early warning and real-time response, and provide suitable models for elaborated predictions, simulations and visualizations. However, some new paradigms such as 3D modelling and semantics are still insufficiently addressed. It is expected that 3D models can greatly improve situational awareness and enhance spatial analysis and simulations. Appropriate vocabularies and semantics to enrich the spatial information are extremely beneficial in data integration and sharing of information at national and international level as well as for developing of context aware applications. This talk will make an overview on systems for emergency response and will present results of systems based on semantically enriched 3D models.

关键词： Educational institutions Earthquakes computers Teamwork Emergency services Three-dimensional displays

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Measurement of the centrality dependence of the charged-particle pseudorapidity distribution in proton–lead collisions at √sNN = 5.02 TeV with the ATLAS detector

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European Physical Journal C 2016年第4期76卷 1-30页

作者： Aad, G. Abajyan, T. Abbott, B. Abdallah, J. Abdel Khalek, S. Abdinov, O. Aben, R. Abi, B. Abolins, M. AbouZeid, O.S. Abramowicz, H. Abreu, H. Abulaiti, Y. Acharya, B.S. Adamczyk, L. Adams, D.L. Addy, T.N. Adelman, J. Adomeit, S. Adye, T. Agatonovic-Jovin, T. Aguilar-Saavedra, J.A. Agustoni, M. Ahlen, S.P. Ahmadov, F. Aielli, G. Åkesson, T.P.A. Akimoto, G. Akimov, A.V. Albert, J. Albrand, S. Alconada Verzini, M.J. Aleksa, M. Aleksandrov, I.N. Alexa, C. Alexander, G. Alexandre, G. Alexopoulos, T. Alhroob, M. Alimonti, G. Alio, L. Alison, J. Allbrooke, B.M.M. Allison, L.J. Allport, P.P. Allwood-Spiers, S.E. Almond, J. Aloisio, A. Alon, R. Alonso, A. Alonso, F. Alpigiani, C. Altheimer, A. Alvarez Gonzalez, B. Alviggi, M.G. Amako, K. Amaral Coutinho, Y. Amelung, C. Ammosov, V.V. Amor Dos Santos, S.P. Amorim, A. Amoroso, S. Amram, N. Amundsen, G. Anastopoulos, C. Ancu, L.S. Andari, N. Andeen, T. Anders, C.F. Anders, G. Anderson, K.J. Andreazza, A. Andrei, V. Anduaga, X.S. Angelidakis, S. Anger, P. Angerami, A. Anghinolfi, F. Anisenkov, A.V. Anjos, N. Annovi, A. Antonaki, A. Antonelli, M. Antonov, A. Antos, J. Anulli, F. Aoki, M. Aperio Bella, L. Apolle, R. Arabidze, G. Aracena, I. Arai, Y. Arce, A.T.H. Arguin, J.-F. Argyropoulos, S. Arik, M. Armbruster, A.J. Arnaez, O. Arnal, V. Arslan, O. Artamonov, A. Artoni, G. Asai, S. Asbah, N. Ask, S. Åsman, B. Asquith, L. Assamagan, K. Astalos, R. Atkinson, M. Atlay, N.B. Auerbach, B. Auge, E. Augsten, K. Aurousseau, M. Avolio, G. Azuelos, G. Azuma, Y. Baak, M.A. Bacci, C. Bach, A.M. Bachacou, H. Bachas, K. Backes, M. Backhaus, M. Backus Mayes, J. Badescu, E. Bagiacchi, P. Bagnaia, P. Bai, Y. Bailey, D.C. Bain, T. Baines, J.T. Baker, O.K. Baker, S. Balek, P. Balli, F. Banas, E. Banerjee, Sw. Bangert, A. Bansal, V. Bansil, H.S. Barak, L. Barber, T. Barberio, E.L. Barberis, D. Barbero, M. Barillari, T. Barisonzi, M. Barklow, T. Barlow, N. Barnett, B.M. Barnett, R.M. Department of Physics University of Adelaide Adelaide Australia Physics Department SUNY Albany AlbanyNY United States Department of Physics University of Alberta EdmontonAB Canada Department of Physics Ankara University Ankara Turkey Department of Physics Gazi University Istanbul Turkey Division of Physics TOBB University of Economics and Technology Ankara Turkey LAPP CNRS/IN2P3 and Université Savoie Mont Blanc Annecy-le-Vieux France High Energy Physics Division Argonne National Laboratory ArgonneIL United States Department of Physics University of Arizona TucsonAZ United States Department of Physics The University of Texas at Arlington ArlingtonTX United States Physics Department University of Athens Athens Greece Physics Department National Technical University of Athens Zografou Greece Institute of Physics Azerbaijan Academy of Sciences Baku Azerbaijan Institut de Física d’Altes Energies and Departament de Física de la Universitat Autònoma de Barcelona Barcelona Spain Institute of Physics University of Belgrade Belgrade Serbia Department for Physics and Technology University of Bergen Bergen Norway Physics Division Lawrence Berkeley National Laboratory and University of California BerkeleyCA United States Department of Physics Humboldt University Berlin Germany Albert Einstein Center for Fundamental Physics and Laboratory for High Energy Physics University of Bern Bern Switzerland School of Physics and Astronomy University of Birmingham Birmingham United Kingdom Department of Physics Bogazici University Istanbul Turkey Department of Physics Engineering Dogus University Istanbul Turkey Department of Physics Engineering Gaziantep University Gaziantep Turkey INFN Sezione di Bologna Bologna Italy Dipartimento di Fisica e Astronomia Università di Bologna Bologna Italy Physikalisches Institut University of Bonn Bonn Germany Department of Physics Boston University BostonMA United States Department of Physics Brandeis University Wa

The centrality dependence of the mean charged-particle multiplicity as a function of pseudorapidity is measured in approximately 1 (Formula presented.) b (Formula presented.) of proton–lead collisions at a nucleon–nucleon centre-of-mass energy of (Formula presented.) (Formula presented.) using the ATLAS detector at the Large Hadron Collider. Charged particles with absolute pseudorapidity less than 2.7 are reconstructed using the ATLAS pixel detector. The p + Pb collision centrality is characterised by the total transverse energy measured in the Pb-going direction of the forward calorimeter. The charged-particle pseudorapidity distributions are found to vary strongly with centrality, with an increasing asymmetry between the proton-going and Pb-going directions as the collisions become more central. Three different estimations of the number of nucleons participating in the p + Pb collision have been carried out using the Glauber model as well as two Glauber–Gribov inspired extensions to the Glauber model. Charged-particle multiplicities per participant pair are found to vary differently for these three models, highlighting the importance of including colour fluctuations in nucleon–nucleon collisions in the modelling of the initial state of p + Pb collisions. © 2016, The Author(s).

关键词： Charged particles

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Phase noise optimization of frequency synthesizers using harmonics of reference signal

Phase noise optimization of frequency synthesizers using har...

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IEEE International Workshop on Electromagnetics, Applications and Student Innovation (iWEM)

作者： Kang-Chun Peng Chan-Hung Lee Tse-Ta Wang Dept. of Computer and Communication Engineering National Kaohsiung First Univ. Science and Technology Kaohsiung Taiwan Development Dept. Hardware Section II Whetron Electronic Co. Ltd Kaohsiung Taiwan

ISBN: (纸本)9781479948147

This paper develops a novel frequency synthesizer using harmonics of the reference signal for the low power consumption and low phase noise requirements of advanced wireless systems. The innovation of our frequency synthesizer is developing an adaptive pulser whose output pulse-width is designed to decrease as the reference frequency increase for enhancing frequency synthesis range. The pulsed reference signal is then mixing with the signal from the voltage-controlled oscillator (VCO). It eliminates the use of high power consumption programmable divider during the steady state. This work have implemented a 2.4 ~ 2.6 GHz low noise frequency synthesizer using the 0.18μm CMOS technology. Comparing with the conventional synthesizer, the proposed synthesizer improves the in-band phase noise and power consumption by about 16 dB and and 21 mW, respectively.

关键词： Frequency synthesizers Phase noise Synthesizers Power harmonic filters Power demand Harmonic analysis

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A user interface for vision sensor based indirect teaching of a robotic manipulator

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Journal of Institute of Control, Robotics and Systems 2013年第10期19卷 921-927页

作者： Kim, Tae-Woo Lee, Hoo-Man Kim, Joong-Bae Computer Software Engineering University of Science and Technology Korea Republic of Intelligence and Robot Control Research Section Eletronics and Telecommunications research institute Korea Republic of

This paper presents a user interface for vision based indirect teaching of a robotic manipulator with Kinect and IMU (Inertial Measurement Unit) sensors. The user interface system is designed to control the manipulator more easily in joint space, Cartesian space and tool frame. We use the skeleton data of the user from Kinect and Wrist-mounted IMU sensors to calculate the user's joint angles and wrist movement for robot control. The interface system proposed in this paper allows the user to teach the manipulator without a pre-programming process. This will improve the teaching time of the robot and eventually enable increased productivity. Simulation and experimental results are presented to verify the performance of the robot control and interface system. © ICROS 2013.

关键词： User interfaces

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Image hiding by square fully exploiting modification directions

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Journal of Information Hiding and Multimedia Signal Processing 2013年第3期4卷 128-137页

作者： Kuo, Wen-Chung Department of Computer Science and Information Engineering National Yunlin University of Science and Technology 123 University Road Section 3 Douliou Yunlin 64002 Taiwan

In order to quick embedding secret and improve the data hiding capacity from 1 bpp to 4.5 bpp, a new data hiding scheme by square fully exploiting modification directions method will be proposed in this paper. According to experiment results, we can prove that proposed scheme not only to enhance the embedding rate and good embedding capacity but also to keep stego-image quality. © 2013.

关键词： Steganography

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