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Displaying 1-39 out of 39 total
Visualization in Teleimmersive Environments
Found in: Computer
By Jason Leigh, Andrew E. Johnson, Maxine Brown, Daniel J. Sandin, Thomas A. DeFanti
Issue Date:December 1999
pp. 66-73
<p>In collaborative virtual reality (VR), the goal is to reproduce a face-to-face meeting in minute detail. Teleimmersion moves beyond this idea, integrating collaborative VR with audio- and video- conferencing that may involve data mining and heavy ...
 
A Review of Tele-Immersive Applications in the CAVE Research Network
Found in: Virtual Reality Conference, IEEE
By Jason Leigh, Andrew E. Johnson, Thomas A. DeFanti, Maxine Brown
Issue Date:March 1999
pp. 180
This paper presents an overview of the Tele-Immersion applications that have been built by collaborators around the world using the CAVERNsoft toolkit, and the lessons learned from building these applications. In particular the lessons learned are presente...
 
Scalable Parallel I/O on a Blue Gene/Q Supercomputer Using Compression, Topology-Aware Data Aggregation, and Subfiling
Found in: 2014 22nd Euromicro International Conference on Parallel, Distributed and Network-Based Processing (PDP)
By Huy Bui,Hal Finkel,Venkatram Vishwanath,Salma Habib,Katrin Heitmann,Jason Leigh,Michael Papka,Kevin Harms
Issue Date:February 2014
pp. 107-111
In this paper, we propose an approach to improving the I/O performance of an IBM Blue Gene/Q supercomputing system using a novel framework that can be integrated into high performance applications. We take advantage of the system's tremendous computing res...
 
Poster: Evaluating Communication Performance in BlueGene/Q and Cray XE6 Supercomputers
Found in: 2012 SC Companion: High Performance Computing, Networking, Storage and Analysis (SCC)
By Huy Bui,Venkatram Vishwanath,Jason Leigh,Michael E. Papka
Issue Date:November 2012
pp. 1515
Evaluation of the communication performance in supercomputers Blue Gene/Q and Cray XE6 using MPI and lower level libraries are presented. MPI is widely used for to its simplicity, portability and straightforwardness, however it also introduces overhead tha...
 
Scalable Visual Queries for Data Exploration on Large, High-Resolution 3D Displays
Found in: 2012 SC Companion: High Performance Computing, Networking, Storage and Analysis (SCC)
By Khairi Reda,Andrew Johnson,Victor Mateevitsi,Catherine Offord,Jason Leigh
Issue Date:November 2012
pp. 196-205
As the scale and complexity of data continue to grow at unprecedented rates, scientists are increasingly relying on Large, High-Resolution Displays to visualize and analyze scientific datasets. Recent studies have demonstrated the effectiveness of these di...
 
Tiled Display System for Improved Communication Efficiency
Found in: P2P, Parallel, Grid, Cloud, and Internet Computing, International Conference on
By Kukimoto Nobuyuki, Guillaume Fleury, Jason Leigh
Issue Date:November 2010
pp. 446-449
Visual information such as images, graphs and figures are a very efficient way to share information between members of a team. Tiled display is one-way of gathering and presenting a large amount of information simultaneously to multiple users. In this pape...
 
Ultrascale Collaborative Visualization Using a Display-Rich Global Cyberinfrastructure
Found in: IEEE Computer Graphics and Applications
By Byungil Jeong, Jason Leigh, Andrew Johnson, Luc Renambot, Maxine Brown, Ratko Jagodic, Sungwon Nam, Hyejung Hur
Issue Date:May 2010
pp. 71-83
The Scalable Adaptive Graphics Environment (SAGE) is high-performance graphics middleware that enables ultrascale collaborative visualization using a display-rich global cyberinfrastructure. Distributed ultraresolution displays and high-performance-computi...
 
Planetary-Scale Terrain Composition
Found in: IEEE Transactions on Visualization and Computer Graphics
By Robert Kooima, Jason Leigh, Andrew Johnson, Doug Roberts, Mark SubbaRao, Thomas A. DeFanti
Issue Date:September 2009
pp. 719-733
Many interrelated planetary height map and surface image map data sets exist, and more data are collected each day. Broad communities of scientists require tools to compose these data interactively and explore them via real-time visualization. While relate...
 
The Rails Toolkit
Found in: eScience, IEEE International Conference on
By Venkatram Vishwanath, Jason Leigh, Sungwon Nam, Luc Renambot, Takashi Shimizu, Hirokazu Takahashi, Makoto Takizawa, Osamu Kamatani
Issue Date:December 2008
pp. 309-316
We present a novel rails approach so that future e-Science applications can effectively exploit future system architectures, including multi-core and many-core architectures, multiple network cards, multiple graphical processing units and hybrid hierarchic...
 
Advances in the Dynallax Solid-State Dynamic Parallax Barrier Autostereoscopic Visualization Display System
Found in: IEEE Transactions on Visualization and Computer Graphics
By Tom Peterka, Robert L. Kooima, Daniel J. Sandin, Andrew Johnson, Jason Leigh, Thomas A. DeFanti
Issue Date:May 2008
pp. 487-499
A solid-state dynamic parallax barrier autostereoscopic display mitigates some of the restrictions present in static barrier systems, such as fixed view-distance range, slow response to head movements, and fixed stereo operating mode. By dynamically varyin...
 
Tele-Immersive Collaboration Using High-Resolution Video in Tiled Displays Environment
Found in: Advanced Information Networking and Applications Workshops, International Conference on
By Yasuo Ebara, Nobuyuki Kukimoto, Jason Leigh, Koji Koyamada
Issue Date:May 2007
pp. 953-958
In tele-communication via WAN, the existence of co-researchers by transmission of a video in real scene is important in order to realize high-presence, and its display by the large-scale screen is effective. However, the video image by wide-area display us...
 
Dynallax: Solid State Dynamic Parallax Barrier Autostereoscopic VR Display
Found in: Virtual Reality Conference, IEEE
By Tom Peterka, Robert L. Kooima, Javier I. Girado, Jinghua Ge, Daniel J. Sandin, Andrew Johnson, Jason Leigh, Jurgen Schulze, Thomas A. DeFanti
Issue Date:March 2007
pp. 155-162
A novel barrier strip autostereoscopic (AS) display is demonstrated using a solid-state dynamic parallax barrier. A dynamic barrier mitigates restrictions inherent in static barrier systems such as fixed view distance range, slow response to head movements...
 
High-Performance Dynamic Graphics Streaming for Scalable Adaptive Graphics Environment
Found in: SC Conference
By Byungil Jeong, Luc Renambot, Ratko Jagodic, Rajvikram Singh, Julieta Aguilera, Andrew Johnson, Jason Leigh
Issue Date:November 2006
pp. 24
The Scalable Adaptive Graphics Environment (SAGE) is specialized middleware for enabling data, high-definition video and extremely high-resolution graphics to be streamed in real-time from remotely distributed rendering and storage clusters to scalable dis...
 
Real Time Change Detection and Alerts from Highway Traffic Data
Found in: SC Conference
By Robert Grossman, Michal Sabala, Anushka Aanand, Steve Eick, Leland Wilkinson, Pei Zhang, John Chaves, Steve Vejcik, John Dillenburg, Peter Nelson, Doug Rorem, Javid Alimohideen, Jason Leigh, Mike Papka, Rick Stevens
Issue Date:November 2005
pp. 69
We developed a testbed containing: real time data from over 830 highway traffic sensors in the Chicago region, data about weather, and text data about events that might affect traffic. The goal was to detect in real time interesting changes in traffic cond...
 
Vol-a-Tile — A Tool for Interactive Exploration of Large Volumetric Data on Scalable Tiled Displays
Found in: Visualization Conference, IEEE
By Nicholas Schwarz, Shalini Venkataraman, Luc Renambot, Naveen Krishnaprasad, Venkatram Vishwanath, Jason Leigh, Andrew Johnson, Graham Kent, Atul Nayak
Issue Date:October 2004
pp. 19p
We present the current state of Vol-a-Tile, an interactive tool for exploring large volumetric data on scalable tiled displays. Vol-a-Tile presents a variety of features employed by scientists at the Scripps Institution of Oceanography on data collected fr...
   
Pre-surgical Cranial Implant Design using the PARIS™ Prototype
Found in: Virtual Reality Conference, IEEE
By Chris Scharver, Ray Evenhouse, Andrew Johnson, Jason Leigh
Issue Date:March 2004
pp. 199
Repairing severe human skull injuries requires customized cranial implants, and current visualization research aims to develop a new approach to create these implants. Following pre-surgical design techniques pioneered at the University of Illinois at Chic...
 
Reliable Blast UDP : Predictable High Performance Bulk Data Transfer
Found in: Cluster Computing, IEEE International Conference on
By Eric He, Jason Leigh, Oliver Yu, Thomas A. DeFanti
Issue Date:September 2002
pp. 317
High speed bulk data transfer is an important part of many data-intensive scientific applications. This paper describes an aggressive bulk data transfer scheme, called Reliable Blast UDP (RBUDP), intended for extremely high bandwidth, dedicated- or Quality...
 
Virtual Harlem
Found in: IEEE Computer Graphics and Applications
By Andrew Johnson, Jason Leigh, Bryan Carter, Jim Sosnoski, Steve Jones
Issue Date:September 2002
pp. 61-67
<p>Virtual Harlem is a learning environment that lets students experience the Harlem Renaissance of the 1920s and 1930s as a cultural field trip. This virtual reality experience is designed to augment the books, photographs, and documentaries typical...
 
Distance Learning Classroom Using Virtual Harlem
Found in: Virtual Systems and MultiMedia, International Conference on
By Kyoung S. Park, Jason Leigh, Andrew Johnson, Bryan Carter, Jennifer Brody, James Sosnoski
Issue Date:October 2001
pp. 489
Virtual Harlem is a virtual reality reconstruction of Harlem, New York, during the 1920s. It was designed to immerse students of the Harlem Renaissance directly in the historical context of the literature of that period. The goal of this prototype is to de...
 
Exploring Multiple Representations In Elementary School Science Education
Found in: Virtual Reality Conference, IEEE
By Andrew Johnson, Thomas Moher, Stellan Ohlsson, Jason Leigh
Issue Date:March 2001
pp. 201
This paper presents our findings after the first year and a half of a multi-year deployment of an ImmersaDesk(r) to a local elementary school, investigating its effectiveness in enhancing science education. These findings deal with how VR can aid in the co...
 
A Methodology for Supporting Collaborative Exploratory Analysis of Massive Data Sets in Tele-Immersive Environments
Found in: High-Performance Distributed Computing, International Symposium on
By Jason Leigh, Andrew E. Johnson, Thomas A. DeFanti, Stuart Bailey, Robert Grossman
Issue Date:August 1999
pp. 8
This paper proposes a methodology for employing collaborative, immersive virtual environments as a high-end visualization interface for massive data-sets. The methodology employs feature detection, partitioning, summarization and decimation to significantl...
 
Multiway Tele-Immersion at Supercomputing 97 Or, Why We Used $6,000,000 Worth of VR Equipment to Do the Hokey Pokey
Found in: IEEE Computer Graphics and Applications
By Andy Johnson, Jason Leigh, Jim Costigan
Issue Date:July 1998
pp. 6-9
No summary available.
 
Issues in the Design of a Flexible Distributed Architecture for Supporting Persistence and Interoperability in Collaborative Virtual Environments
Found in: SC Conference
By Jason Leigh
Issue Date:November 1997
pp. 21
CAVERN, the CAVE Research Network, is an alliance of industrial and research institutions equipped with CAVE-based virtual reality hardware and high performance computing resources, interconnected by high-speed networks, to support collaboration in design,...
 
Supporting Transcontinental Collaborative Work in Persistent Virtual Environments
Found in: IEEE Computer Graphics and Applications
By Jason Leigh, Andrew E. Johnson
Issue Date:July 1996
pp. 47-51
A collaborative design laboratory supports co-presence, VR interfaces, and database technology for sustaining persistence in virtual worlds between sites.
 
Colorplate: Pre-surgical Cranial Implant Design using the PARIS™ Prototype
Found in: Virtual Reality Conference, IEEE
By Chris Scharver, Ray Evenhouse, Andrew Johnson, Jason Leigh
Issue Date:March 2004
pp. 291
No summary available.
   
Visualizing Object-Oriented Software in Virtual Reality
Found in: International Conference on Program Comprehension
By Jonathan I. Maletic, Andrian Marcus, Greg Dunlap, Jason Leigh
Issue Date:May 2001
pp. 0026
Abstract: The paper describes a system, Imsovision, for visualizing object-oriented software in a Virtual Reality Environment. A visualization language (COOL) is defined that maps C++ source code to a visual representation. Our aim is to develop a language...
 
The Virtual Mail System
Found in: Virtual Reality Conference, IEEE
By Tomoko Imai, Andrew E. Johnson, Jason Leigh, David E. Pape, Thomas A. DeFanti
Issue Date:March 1999
pp. 78
Companies conduct world-wide collaborations which often involve asynchronous work with group members in different time-zones. In asynchronous work, the participants can easily waste days just clarifying questions because feedback is slow. For efficient col...
 
The health bar: a persuasive ambient display to improve the office worker's well being
Found in: Proceedings of the 5th Augmented Human International Conference (AH '14)
By Andrew Johnson, Jason Leigh, Khairi Reda, Victor Mateevitsi
Issue Date:March 2014
pp. 1-2
Recent research studies have shown the serious health risks associated with prolonged sitting. Standing up and walking on a regular basis has been proved to improve an office worker's well-being. Small behavioral changes like the aforementioned are the bas...
     
Case study: designing an advanced visualization system for geological core drilling expeditions
Found in: Proceedings of the 28th of the international conference extended abstracts on Human factors in computing systems (CHI EA '10)
By Andrew Johnson, HyeJung Hur, Jason Leigh, Luc Renambot, Sangyoon Lee, Yu-Chung Chen
Issue Date:April 2010
pp. 4645-4660
We present the design and process of an interactive high-resolution visualization system for diverse and distributed real-world geological core drilling expeditions. The high domain knowledge barrier makes it difficult for a person who is outside this fiel...
     
Multi-application inter-tile synchronization on ultra-high-resolution display walls
Found in: Proceedings of the first annual ACM SIGMM conference on Multimedia systems (MMSys '10)
By Byungil Jeong, Jason Leigh, Luc Renambot, Sachin Deshpande, Sungwon Nam, Venkatram Vishwanath
Issue Date:February 2010
pp. 145-156
Ultra-high-resolution tiled-display walls are typically driven by a cluster of computers. Each computer may drive one or more displays. Synchronization between the computers is necessary to ensure that animated imagery displayed on the wall appears seamles...
     
Remote visualization of large scale data for ultra-high resolution display environments
Found in: Proceedings of the 2009 Workshop on Ultrascale Visualization (UltraVis '09)
By Andrew Johnson, Byungil Jeong, Jason Leigh, Kelly Gaither, Luc Renambot, Sungwon Nam
Issue Date:November 2009
pp. 42-44
ParaView is one of the most widely used scientific tools that support parallel visualization of large scale data. The Scalable Adaptive Graphics Environment (SAGE) is a graphics middleware that enables real-time streaming of ultra-high resolution visual co...
     
Design an interactive visualization system for core drilling expeditions using immersive empathic method
Found in: Proceedings of the 27th international conference extended abstracts on Human factors in computing systems (CHI EA '09)
By Andrew Johnson, HyeJung Hur, Jason Leigh, Luc Renambot, Sangyoon Lee, Yu-Chung Chen
Issue Date:April 2009
pp. 1-4
In this paper, we propose an immersive empathic design method and used it to create an interactive high-resolution core visualization system for real-world geological core drilling expeditions. A high domain knowledge barrier makes it difficult for a perso...
     
Cyber-commons: merging real and virtual worlds
Found in: Communications of the ACM
By Jason Leigh
Issue Date:January 2008
pp. 95-100
Cyber-mashups of very large data sets let users explore, analyze, and comprehend the science behind the information being streamed.
     
Designing cranial implants in a haptic augmented reality environment
Found in: Communications of the ACM
By Andrew Johnson, Chris Scharver, Jason Leigh, Ray Evenhouse
Issue Date:August 2004
pp. 32-38
Medical sculptors and neurosurgeons create virtual 3D cranial models based on patient CT data superimposed over their hands as if they were sculpting physical models.
     
CAVERNsoft G2: a toolkit for high performance tele-immersive collaboration
Found in: Proceedings of the ACM symposium on Virtual reality software and technology (VRST '00)
By Andrew E. Johnson, Chris Scharver, Jason Leigh, Kyoung S. Park, Michael J. Lewis, Naveen K. Krishnaprasad, Yong J. Cho
Issue Date:October 2000
pp. 8-15
This paper describes the design and implementation of CAVERNsoft G2, a toolkit for building collaborative virtual reality applications. G2's special emphasis is on providing the tools to support high-performance computing and data intensive systems that ar...
     
Lessons learned from employing multiple perspectives in a collaborative virtual environment for visualizing scientific data
Found in: Proceedings of the third international conference on Collaborative virtual environments (CVE '00)
By Abhinav Kapoor, Jason Leigh, Kyoung S. Park
Issue Date:September 2000
pp. 73-82
This paper explores the concept of multiple perspectives to enhance collaboration by allowing remote participants to tailor their views, user-interfaces and roles to their particular needs and expertise. It describes a preliminary design study conducted on...
     
Global tele-immersion at the Electronic Visualization Laboratory
Found in: ACM SIGGRAPH 99 Electronic art and animation catalog (SIGGRAPH '99)
By Andrew Johnson, Jason Leigh, Maxine Brown, Samroeng Thongrong, Thomas DeFanti
Issue Date:August 1999
pp. 143
This paper describes a physically-based rendering system tailored to the demands of lighting design and architecture. The simulation uses a light-backwards ray-tracing method with extensions to efficiently solve the rendering equation under most conditions...
     
Issues in the design of a flexible distributed architecture for supporting persistence and interoperability in collaborative virtual environments
Found in: Proceedings of the 1997 ACM/IEEE conference on Supercomputing (CDROM) (Supercomputing '97)
By Andrew E. Johnson, Jason Leigh, Thomas A. DeFanti
Issue Date:November 1997
pp. 1-14
CAVERN, the CAVE Research Network, is an alliance of industrial and research institutions equipped with CAVE-based virtual reality hardware and high-performance computing resources, interconnected by high-speed networks, to support collaboration in design,...
     
CALVIN: collaborative architectural layout via immersive navigation
Found in: ACM SIGGRAPH 96 Visual Proceedings: The art and interdisciplinary programs of SIGGRAPH '96 (SIGGRAPH '96)
By Jason Leigh
Issue Date:August 1996
pp. 168
This paper describes a physically-based rendering system tailored to the demands of lighting design and architecture. The simulation uses a light-backwards ray-tracing method with extensions to efficiently solve the rendering equation under most conditions...
     
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