检索结果-内蒙古大学图书馆

International Conference on Cognitive Infocommunications (CogInfoCom)

作者： Péter Galambos Christian Weidig Péter Baranyi Jan C. Aurich Bernd Hamann Oliver Kreylos Computer and Automation Research Institute Hungarian Academy of Sciences Budapest Hungary Department of Manufacturing Science and Technology Budapest University of Technology and Economics Hungary Institute for Manufacturing Technology and Production Systems University of Kaiserslautern Germany Department of Telecommunications and Media Informatics Budapest University of Technology and Economics Hungary Institute for Data Analysis and Visualization (IDAV) University of California Davis USA

To take up the challenge of global distributed companies, Manufacturing Engineering has to be accomplished in a worldwide collaborative way. Design and development of production processes and their execution are nowadays spread all over the world. To ensure quality standards and to create synergies between spatially distributed entities, distance collaboration tools must be provided to allow cooperation even over large distances. The Virtual Reality (VR) is thereby offering beneficial capabilities to exchange current planning stages, identify problems and solve them cooperatively. This paper introduces a new approach for distance collaboration, which enables users to work in a joint virtual space, nearly as if they were working together in the same place. Therefore two full-immersive CAVE-like systems are interconnected using the VirCA (Virtual Collaboration Arena) platform. The paper describes the requirements of Mechanical Engineers towards distance collaboration tools and the technical challenges solved with the enhanced VirCA framework. This working prototype is one premier application in the field of VR-enhanced spatially distributed collaboration. A typical use case scenario is provided to highlight the interaction and cooperation capabilities offered by VirCA NET.

关键词： Collaboration Planning Robots Production facilities Manufacturing Virtual reality Production systems

来源：评论

学校读者我要写书评

暂无评论

High-quality visualization for geographically distributed 3-D teleimmersive applications

High-quality visualization for geographically distributed 3-...

引用

作者： Vasudevan, Ramanarayan Kurillo, Gregorij Lobaton, Edgar Bernardin, Tony Kreylos, Oliver Bajcsy, Ruzena Nahrstedt, Klara Department of Electrical Engineering and Computer Sciences University of California Berkeley CA 94720 United States Department of Computer Science University of North Carolina at Chapel Hill Chapel Hill NC 27599 United States Institute for Data Analysis and Visualization University of California Davis Davis CA 95616 United States Department of Computer Science University of Illinois at Urbana Champaign Urbana IL 61801 United States

The growing popularity of 3-D movies has led to the rapid development of numerous affordable consumer 3-D displays. In contrast, the development of technology to generate 3-D content has lagged behind considerably. In spite of significant improvements to the quality of imaging devices, the accuracy of the algorithms that generate 3-D data, and the hardware available to render such data, the algorithms available to calibrate, reconstruct, and then visualize such data remain difficult to use, extremely noise sensitive, and unreasonably slow. In this paper, we present a multi-camera system that creates a highly accurate (on the order of a centimeter), 3-D reconstruction of an environment in real-time (under 30 ms) that allows for remote interaction between users. This paper focuses on addressing the aforementioned deficiencies by describing algorithms to calibrate, reconstruct, and render objects in the system. We demonstrate the accuracy and speed of our results on a variety of benchmarks and data collected from our own system. © 2011 IEEE.

关键词： Virtual reality

来源：评论

学校读者我要写书评

暂无评论

Topology-based visualization of transformation pathways in complex chemical systems

Topology-based visualization of transformation pathways in c...

引用

13th Eurographics / IEEE Symposium on visualization, EuroVis 2011

作者： Beketayev, K. Weber, G.H. Haranczyk, M. Bremer, P.-T. Hlawitschka, M. Hamann, B. Computational Research Division Lawrence Berkeley National Laboratory United States Center for Applied Scientific Computing Lawrence Livermore National Laboratory United States Institute for Data Analysis and Visualization Department of Computer Science University of California Davis CA United States

(Figure Presented) Studying transformation in a chemical system by considering its energy as a function of coordinates of the system's components provides insight and changes our understanding of this process. Currently, a lack of effective visualization techniques for high-dimensional energy functions limits chemists to plot energy with respect to one or two coordinates at a time. In some complex systems, developing a comprehensive understanding requires new visualization techniques that show relationships between all coordinates at the same time. We propose a new visualization technique that combines concepts from topological analysis, multi-dimensional scaling, and graph layout to enable the analysis of energy functions for a wide range of molecular structures. We demonstrate our technique by studying the energy function of a dimer of formic and acetic acids and a LTA zeolite structure, in which we consider diffusion of methane. © 2011 The Author(s) Journal compilation © 2011 The Eurographics Association and Blackwell Publishing Ltd. Published by Blackwell Publishing.

关键词： Dimers

来源：评论

学校读者我要写书评

暂无评论

Real Time Collaborative Video Annotation Using Google App Engine and XMPP Protocol

Real Time Collaborative Video Annotation Using Google App En...

引用

IEEE International Conference on Cloud Computing, CLOUD

作者： Abbas Attarwala Deepak Jagdish Ute Fischer Department of Computer Science University of Toronto Toronto ONT Canada Data Visualization & Design Nokia Research Center Palo Alto CA USA School of Literature & Communication Georgia Institute of Technology Atlanta GA USA

This WIP paper reports the status of a Windows based tool, 'Event Coding and visualization of data' (ECOVRD) that allows real time collaborative video annotation using Google App Engine (GAE) and XMPP protocol. ECOVRD facilitates classification of live or video recorded individual and team behavior. It is designed with the dual purpose of advancing behavioral (observational) research and of supporting applied uses such as performance assessment and feedback during professional coaching. Users of ECOVRD can initiate a shared real-time video annotation with their social network (Google Buzz) via XMPP protocol. The custom-built publish/subscribe architecture wrapped around GAE's channel service, pushes data from the cloud to subscribed clients resulting in real-time collaborative experience. ECORVD may be the first to successfully leverage the server push framework of GAE for desktop based video annotation applications.

关键词： Cloud computing Conferences

来源：评论

学校读者我要写书评

暂无评论

Large data visualization on distributed memory multi-GPU clusters 2

Large data visualization on distributed memory multi-GPU clu...

引用

2nd ACM SIGGRAPH / Eurographics on High-Performance Graphics, HPG 2010

作者： Fogal, Thomas Childs, Hank Shankar, Siddharth Krüger, Jens Bergeron, R. Daniel Hatcher, Philip Scientific Computing and Imaging Institute University of Utah United States Department of Computer Science University of New Hampshire United States Lawrence Berkeley National Laboratory United States Interactive Visualization and Data Analysis Group DFKI Germany

ISBN: (纸本)9783905674262

data sets of immense size are regularly generated on large scale computing resources. Even among more traditional methods for acquisition of volume data, such as MRI and CT scanners, data which is too large to be effectively visualized on standard workstations is now commonplace. One solution to this problem is to employ a 'visualization cluster,' a small to medium scale cluster dedicated to performing visualization and analysis of massive data sets generated on larger scale supercomputers. These clusters are designed to fit a different need than traditional supercomputers, and therefore their design mandates different hardware choices, such as increased memory, and more recently, graphics processing units (GPUs). While there has been much previous work on distributed memory visualization as well as GPU visualization, there is a relative dearth of algorithms which effectively use GPUs at a large scale in a distributed memory environment. In this work, we study a common visualization technique in a GPU-accelerated, distributed memory setting, and present performance characteristics when scaling to extremely large data sets. The Eurographics Association 2010.

关键词： Graphics processing unit

来源：评论

学校读者我要写书评

暂无评论

Quantitative visualization of ChIP-chip data by using linked views

Quantitative visualization of ChIP-chip data by using linked...

引用

IEEE International Conference on Bioinformatics and Biomedicine Workshops (BIBMW)

作者： Min-Yu Huang Gunther H. Weber Xiao-Yong Li Mark D. Biggin Bernd Hamann Institute for Data Analysis and Visualization (IDAV) Department of Computer Science University of California슠Davis Davis CA USA Visualization Group Lawrence Berkeley National Laboratory Berkeley CA USA Genomics Divisions Lawrence Berkeley National Laboratory Berkeley CA USA Institute for Data Analysis and Visualization (IDAV) Department of Computer Science University of California Davis Davis CA USA

Most analyses of ChIP-chip in vivo DNA binding have focused on qualitative descriptions of whether genomic regions are bound or not. There is increasing evidence, however, that factors bind in a highly overlapping manner to the same genomic regions and that it is quantitative differences in occupancy on these commonly bound regions that are the critical determinants of the different biological specificity of factors. As a result, it is critical to have a tool to facilitate the quantitative visualization of differences between transcription factors and the genomic regions they bind to understand each factor's unique roles in the network. We have developed a framework which combines several visualizations via brushing-and-linking to allow the user to interactively analyze and explore in vivo DNA binding data of multiple transcription factors. We describe these visualization types and also provide a discussion of biological examples in this paper.

关键词： Correlation Bioinformatics data visualization Genomics Image color analysis Browsers

来源：评论

学校读者我要写书评

暂无评论

Large data visualization on Distributed Memory Multi-GPU Clusters 10

Large Data Visualization on Distributed Memory Multi-GPU Clu...

引用

Conference on High-performance Graphics

作者： Thomas Fogal Hank Childs Siddharth Shankar Jens Kriiger R. Daniel Bergeron Philip Hatcher Scientific Computing & Imaging Institute University of UtahDepartment of Computer Science University of New Hampshire Lawrence Berkeley National Laboratory Scientific Computing & Imaging Institute University of Utah Interactive Visualization and Data Analysis Group DFKI Germany Department of Computer Science University of New Hampshire

ISBN: (纸本)9781617827242

关键词： distributed memory data visualisation visualization dataset supercomputer Representation of data performance characteristics

来源：评论

学校读者我要写书评

暂无评论

Out-of-core data management for path tracing on hybrid resources

Out-of-core data management for path tracing on hybrid resou...

引用

30th Annual Conference on European Association for Computer Graphics, EUROGRAPHICS 2009

作者： Budge, Brian Bernardin, Tony Stuart, Jeff A. Sengupta, Shubhabrata Joy, Kenneth I. Owens, John D. Institute for Data Analysis and Visualization Department of Computer Science Davis United States Department of Electrical and Computer Engineering University of California Davis United States

We present a software system that enables path-traced rendering of complex scenes. The system consists of two primary components: an application layer that implements the basic rendering algorithm, and an out-of-core scheduling and data-management layer designed to assist the application layer in exploiting hybrid computational resources (e.g., CPUs and GPUs) simultaneously. We describe the basic system architecture, discuss design decisions of the system's data-management layer, and outline an efficient implementation of a path tracer application, where GPUs perform functions such as ray tracing, shadow tracing, importance-driven light sampling, and surface shading. The use of GPUs speeds up the runtime of these components by factors ranging from two to twenty, resulting in a substantial overall increase in rendering speed. The path tracer scales well with respect to CPUs, GPUs and memory per node as well as scaling with the number of nodes. The result is a system that can render large complex scenes with strong performance and scalability. © 2008 The Author(s).

关键词： Information management

来源：评论

学校读者我要写书评

暂无评论

Maximizing adaptivity in hierarchical topological models using cancellation trees

Maximizing adaptivity in hierarchical topological models usi...

引用

Workshop on Mathematical Foundations of Scientific visualization, Computer Graphics, and Massive data Exploration, 2004

作者： Bremer, Peer-Timo Pascucci, Valerio Hamann, Bernd Department of Computer Science University of Illinois Urbana-Champaign United States Center for Applied Scientific Computing Lawrence Livermore National Laboratory United States Institute for Data Analysis and Visualization Department of Computer Science University of California Davis United States

ISBN: (纸本)9783642543005

We present a highly adaptive hierarchical representation of the topology of functions defined over two-manifold domains. Guided by the theory of Morse–Smale complexes, we encode dependencies between cancellations of critical points using two independent structures: a traditional mesh hierarchy to store connectivity information and a new structure called cancellation trees to encode the configuration of critical points. Cancellation trees provide a powerful method to increase adaptivity while using a simple, easy-to-implement data structure. The resulting hierarchy is significantly more flexible than the one previously reported (IEEE Trans. Vis. Comput. Graph. 10(4):385–396, 2004). In particular, the resulting hierarchy is guaranteed to be of logarithmic height. © 2009 Springer-Verlag Berlin Heidelberg.

关键词： Trees (mathematics)

来源：评论

学校读者我要写书评

暂无评论

Cataclysmic Variables and Other Compact Binaries in the Globular Cluster NGC 362: Candidates from Chandra and HST

引用

AIP Conference Proceedings 2010年第1期1314卷 163-168页

作者： B. Margon B. Beck‐Winchatz L. Homer D. Pooley C. G. Bassa S. F. Anderson W. H. G. Lewin F. Verbunt A. K. H. Kong R. M. Plotkin aDepartment of Astronomy & Astrophysics University of California Santa Cruz CA 95064 USA bScientific Data Analysis and Visualization Program DePaul University Chicago IL 60614 USA cDepartment of Astronomy University of Washington Box 351580 Seattle WA 98195 USA dEureka Scientific 5248 Valley View Road El Sobrante CA 94803 USA eJodrell Bank Centre for Astrophysics School of Physics and Astronomy University of Manchester Manchester M13 9PL UK fKavli Institute for Astrophysics and Space Research Massachusetts Institute of Technology Cambridge MA 02139 USA gAstronomical Institute Utrecht University PO Box 80000 3508 TA Utrecht The Netherlands hInstitute of Astronomy and Department of Physics National Tsing Hua University Hsinchu 30013 Taiwan iAstronomical Institute “Anton Pannekoek ” University of Amsterdam Science Park 904 1098 XH Amsterdam The Netherlands

Highly sensitive and precise X‐ray imaging from Chandra, combined with the superb spatial resolution of HST optical images, dramatically enhances our empirical understanding of compact binaries such as cataclysmic variables and low mass X‐ray binaries, their progeny, and other stellar X‐ray source populations deep into the cores of globular clusters. Our Chandra X‐ray images of the globular cluster NGC 362 reveal 100 X‐ray sources, the bulk of which are likely cluster members. Using HST color‐magnitude and color‐color diagrams, we quantitatively consider the optical content of the NGC 362 Chandra X‐ray error circles, especially to assess and identify the compact binary population in this condensed‐core globular cluster. Despite residual significant crowding in both X‐rays and optical, we identify an excess population of Hα‐emitting objects that is statistically associated with the Chandra X‐ray sources. The X‐ray and optical characteristics suggest that these are mainly cataclysmic variables, but we also identify a candidate quiescent low mass X‐ray binary. A potentially interesting and largely unanticipated use of observations such as these may be to help constrain the macroscopic dynamic state of globular clusters.

关键词：

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：