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Roger Crawfis

  • Associate Professor, Computer Science & Engineering
  • 395 Dreese Laboratories
    2015 Neil Ave
    Columbus, OH 43210
  • 614-292-2566

Honors

  • 20130501

    Best Paper Award. DeVry Institute of Technology.

  • 20120101

    Best paper award for Effective Texture Models for Three Dimensional Flow Visualization.

  • 20040101

    Best paper award for Volume Interval Segmentation and Rendering.

  • 20030101

    Best panel award for the panel Do I Really See a Bone?.

  • 20000101

    Lumley Award for outstanding research and teaching.

  • 19990101

    NSF CAREER Awards.

  • 19990101

    Annual Research Accomplishment Award.

  • 19990101

    Best Hot Topics Paper.

  • 19980601

    Naval Notable Achievement Award for Splatting Errors and Anti-Aliasing.

  • 19970101

    Best paper award for An Anti-Aliasing Technique for Splatting.

  • 19970101

    Best panel award for Terascale Visualization: Approaches, Pitfalls, and Issues.

  • 19930101

    Best paper award for Texture Splats for 3D Vector and Scalar Field Visualization.

  • 19920101

    Grand Prix in the category of Scientific Visualization for the video Global Climate Visualization.

Books

2011

2002

  • Crawfis, Roger, Johnson, Chris, Mueller, K., IEEE Computer Society. Technical Committee--Computer Graphics.,, SIGGRAPH.,. 2002. "IEEE/ACM SIGGRAPH Symposium on Volume Visualization and Graphics 2002 : Boston, Massachusetts, October 28-29, 2002." IEEE.

1996

Chapters

2014

  • 2014. "Adaptively Represented Complete Distance Fields." In Geometric Modelling for Scientific Visualization, edited by Guido Brunnet, Bernd Hamann, Heinrich Mueller,

2006

  • 2006. "A Practical System for Constrained Interactive Walkthroughs of Arbitrarily Complex Scenes." In Scientific visualization: the visual extraction of knowledge from data,

2004

  • 2004. "Volume Rendering Using Splatting." In Visualization Handbook, edited by Charles D. Hansen, Christopher R. Johnson,

2003

  • 2003. "High-Quality Splatting and Volume Synthesis." In Data Visualization: The State of the Art, edited by Frits H. Post, Gregory M. Nielson, Georges-Pierre Bonneau,

1999

  • 1999. "Applications of Texture Mapping to Volume and Flow Visualization." In Data Visualization, edited by C. Bajaj,
  • 1999. "Vector Field Visualization Techniques." In Data Visualization, edited by C. Bajaj,

1993

  • 1993. "Multiple visualization techniques allow correlation of three scalar fields, one vector field and mesh topology." In Visual Cues, edited by Peter Keller and Mary Keller,
  • 1993. "Depth cues and position correlate 3-D to 2-D." In Visual Cues, edited by Peter Keller and Mary Keller,
  • 1993. "Color and textures correlate variables." In Visual Cues, edited by Peter Keller and Mary Keller,

Journal Articles

2014

  • Mishchenko,O; Crawfis,R, 2014, "On Perception of Semi-Transparent Streamlines for Three-Dimensional Flow Visualization." COMPUTER GRAPHICS FORUM 33, no. 1, 210-221 - 210-221.

2004

  • Bhaniramka,P; Wenger,R; Crawfis,R, 2004, "Isosurface construction in any dimension using convex hulls." IEEE TRANSACTIONS ON VISUALIZATION AND COMPUTER GRAPHICS 10, no. 2, 130-141 - 130-141.

2003

  • Caixia Zhang and Roger Crawfis, 2003, "Shadows and Soft Shadows with Participating Media Using Splatting." IEEE Transactions on Visualization and Computer Graphics 9, no. 2, 139-149 - 139-149.

2000

  • Stredney,D; Agrawal,A; Barber,D; Crawfis,R; Feng,W,C; Hou,J; Panda,D,K; Sadayappan,P; Powell,K; Schmalbrock,P; Sessanna,D; Wiet,G,J; Shareef,N; Bryan,J, 2000, "Interactive medical data on demand: a high-performance imaged-based approach across heterogeneous environments.." Studies in health technology and informatics 70, 327-333 - 327-333.

1999

  • Mueller,K; Shareef,N; Huang,J; Crawfis,R, 1999, "High-quality splatting on rectilinear grids with efficient culling of occluded voxels." IEEE TRANSACTIONS ON VISUALIZATION AND COMPUTER GRAPHICS 5, no. 2, 116-134 - 116-134.

1998

  • Mueller,K; Moller,T; Swan,J,E; Crawfis,R; Shareef,N; Yagel,R, 1998, "Splatting errors and antialiasing." IEEE TRANSACTIONS ON VISUALIZATION AND COMPUTER GRAPHICS 4, no. 2, 178-191 - 178-191.
  • Rudman,D,T; Stredney,D; Sessanna,D; Yagel,R; Crawfis,R; Heskamp,D; Edmond,C,V; Wiet,G,J, 1998, "Functional endoscopic sinus surgery training simulator." LARYNGOSCOPE 108, no. 11, 1643-1647 - 1643-1647.

1994

  • Crawfis,R; Max,N; Becker,B, 1994, "VECTOR FIELD VISUALIZATION." IEEE COMPUTER GRAPHICS AND APPLICATIONS 14, no. 5, 50-56 - 50-56.

1993

  • Daqing Xue and Roger Crawfis, 1993, "A Modern Implementation of Textured Splats." Journal of Graphics Tools, ACM Press 8, no. 3, 1-21 - 1-21.
  • Max,N; Crawfis,R; Williams,D, 1993, "VISUALIZATION FOR CLIMATE MODELING." IEEE COMPUTER GRAPHICS AND APPLICATIONS 13, no. 4, 34-40 - 34-40.

1990

  • Max, Nelson, Pat Hanrahan and Roger Crawfis, 1990, "Area and Volume Coherence for Efficient Visualization of 3D Scalar Functions." Computer Graphics 24, no. 5, 27-33 - 27-33.

Presentations

  • "Volume Synthesis using Splatting." 2000, Presented at 2000 Dagstuhl Workshop on Visualization,
  • "Bone Hunting (active tense)." 2003, Presented at IEEE Visualization 2003 conference,
  • "A Panoramic Walk-through System with Occlusion Culling." 2003, Presented at Ninth Eurographics Workshop on Virtual Environments,
  • "Rail-track Viewer, An Image-Based Virtual Walkthrough System." 2003, Presented at Rail-track Viewer, An Image-Based Virtual Walkthrough System,
  • "Hardware Accelerated Volume Rendering: splatting on modern graphics hardware." 2003, Presented at US Army workshop on Visualization,
  • "Volumetric Shadows and Soft Shadows." 2004, Presented at Ohio Supercomputer Center,
  • "Construction and Rendering of Implicit Flow Fields." 2004, Presented at Ohio Supercomputer Center,
  • "Optimal Cover Placement Against Static Enemy Positions." 2013, Presented at Foundations of Digital Games,
  • "Delivery of Constraint-Induced Movement therapy through a video game for individuals with hemiparesis post-stroke." 2013, Presented at Ohio State Biomedical Engineering Conference,
  • "Towards Effective Visualizations and Fun Procedural Content." 2013, Presented at 9th Annual International Conference on Information Technology & Computer Science,
  • "Railtrack Viewer – An Image-Based Virtual Walkthrough System." 2002, Presented at Eighth Eurographics Workshop on Virtual Environments,
  • "Efficient Data Redistribution With Occlusion Acceleration For Parallel Image-Aligned Sheet-Based Splatting." 2014, Presented at Eurographics Workshop on Parallel Graphics and Visualization,
  • "Development of Recovery Rapids - A Game For Cost Effective Stroke Therapy." 2014, Presented at Foundations of Digital Games,
  • "Advanced Techniques for Scientific Visualization." 1995, Presented at SIGGRAPH '95 Course Notes CD,
  • "Scientific Visualization." 1995, Presented at IEEE Visualization 95 Course Notes,
  • "Futures: MPP Visualization." 1997, Presented at DOE Graphics Forum,
  • "Eliminating Popping in Sheet Buffer-Based Splatting." 1998, Presented at IEEE Visualization,
  • "Rendering Multiple Vector Fields." 1998, Presented at Vector Field Visualization Symposium,
  • "Parallel Rendering and Image-based Rendering." 1999, Presented at Large Data Visualization Workshop,
  • "Parallel Rendering and Image-based Rendering." 1999, Presented at Large Data Visualization Workshop 1999,
  • "Marching Cubes in Four and Higher Dimensions: Extended Abstract." 1999, Presented at 4th CGC Workshop on Computational Geometry,
  • "Remote User-Driven Exploration of Large Scale Volume Data." 2004, Presented at Ohio Supercomputer Center,
  • "Hardware Accelerated Volume Rendering: Splatting on Modern Graphics Hardware." 2004, Presented at Ohio Supercomputer Center,
  • "Tile-Based 3D Display Using A Reconfigurable Display Matrix." 2004, Presented at Ohio Supercomputer Center,
  • "Procedural Textures Using Tilings With Perlin Noise." 2012, Presented at Computer Games (CGAMES), 17th International Conference,
  • "LOOKING FORWARD: PROCEDURAL CONTENT FOR GAMES AND LESSONS LEARNED FROM VISUALIZATION." 2012, Presented at CGVCVIP,
  • "Procedural Terrain Generation for Medical Rehabilitation." 2013, Presented at Procedural Content Generation Workshop,
  • "Games for Therapy: Defining a Grammar and Implementation for the Recognition of Therapeutic Gestures." 2013, Presented at Foundations of Digital Games,
  • "Virtual Flow Visualization." 2014, Presented at Ninth International Flow Visualization Symposium,
  • "Advanced Techniques for Scientific Visualization." 1994, Presented at SIGGRAPH '94 Course Notes CD,
  • "Scientific Visualization." 1995, Presented at CG International 95 Course Notes,
  • "Visualization of Three-Dimensional Vector Fields." 2006, Presented at Computer Graphics and Visualization,
  • "Defining Fun." 2012, Presented at CGVCVIP,
  • "Canyon Run demo." 2013, Presented at FDG 2013,
  • Demo. 2013, Presented at Ohio Game Developer Expo,
  • "Startup Snapshot, VC pitch." 2014, Presented at Tech Columbus,
  • "Startup Snapshot, demo of Recovery Rapids: A gamified CI Therapy." 2014, Presented at Tech Columbus,
  • "A Tile-Based 3D Frame Using Reconfigurable Display Matrix." 2003, Presented at SIGGRAPH Sketches,
  • "Looking Forward: Procedural Content for Games and Lessons Learned From Visualization." 2012, Presented at IADIS International Conference on Computer Graphics and Visualization (CGVCVIP),
  • "Delivery of Constraint-Induced Movement therapy through a video game for individuals with hemiparesis post-stroke." 2013, Presented at The Personalized Health Care Conference of The Ohio State University Wexner Medical Center,

Papers in Proceedings

2015

  • Maung, D., Crawfis, R., Gauthier, L.V., Worthen-Chaudhari, L., Lowes, L.P., Borstad, A., McPherson, R., Grealy, J., Adams, J "Development of Recovery Rapids - A Game For Cost Effective Stroke Therapy." in FDG 2015. (5 2015).
  • Liang, Jiongqian, Fuhry, David, Maun, David, Crawfis, Roger, Gauthier, Lynne, Nandi, Arnab, Parthasarathy, Srinivasan "Data Analytics Framework for A Game-based Rehabilitation System." in 2015 SDM Workshop on Data Mining for Medicine and Healthcare. (4 2015).

2014

  • Jaffe J, Lowes L, Borstad A, Worthen-Chaudhari L, Crawfis C, Phillips K, Maung D, Adams J, Siles A, Marlin A, McPherson R, Gauthier L. "Gaming for the brain: video game based arm rehabilitation." in International Research Congress on Integrative Medicine and Health. (5 2014).
  • Shi, Yinxuan, Crawfis, Roger "Group Tactics Utilizing Suppression and Shelter." in Computer Games: AI, Animation, Mobile, Multimedia, Educational and Serious Games (CGAMES). (7 2014).

2013

  • Yinxuan Shi, Roger Crawfis "Optimal Cover Placement Against Static Enemy Positions." in 8th International Conference on the Foundations of Digital Games. (5 2013).

2012

  • Oleg Mishchenko and Roger Crawfis "Effective Texture Models for Three Dimensional Flow Visualization." (5 2012).

2011

  • Lee,Teng-Yok; Mishchenko,Oleg; Shen,Han-Wei; Crawfis,Roger "View Point Evaluation and Streamline Filtering for Flow Visualization." in Proceedings of the IEEE Pacific Visualization Symposium 2011. (3 2011).

2010

  • Mishchenko,Oleg; Raman,Sundaresan; Crawfis,Roger "Distributed Visualization Framework Architecture." in Conference on Visualization and Data Analysis 2010. (1 2010).
  • Matt Boggus and Roger Crawfis "Prismfields: A Framework for Interactive Modeling of Three Dimensional Caves." in Proceedings of the 6th International Symposium on Visual Communication. (11 2010).
  • Boggus,Matt; Crawfis,Roger "Prismfields: A Framework for Interactive Modelling of Three Dimensional Caves." in 6th International Symposium on Visual Computing. (1 2010).
  • Boggus, Mathew and Crawfis, Roger Distance based illumination as a navigational aid. in Proceedings of the 2010 ACM SIGGRAPH Symposium on interactive 3D Graphics and Games. http://doi.acm.org/10.1145/1730971.1730979, (1 2010).
  • Boggus,Matt; Crawfis,Roger "Distance Field Illumination: A Rendering Method to Aid in Navigation of Virtual Environments." in 6th International Symposium on Visual Computing. (1 2010).

2009

  • Matt Boggus, Roger Crawfis "Procedural Creation of 3D Solution Cave Models." in International Conference on Modelling and Simulation. (7 2009).
  • Matt Boggus and Roger Crawfis "Explicit Generation of 3D Models of Solution Caves for Virtual Environments." in International Conference on Computer Graphics and Virtual Reality. (7 2009).

2008

  • Sundaresan Raman, Oleg Mishchenko, and Roger Crawfis "Layers for Effective Volume Rendering." (8 2008).

2006

  • Crawfis, Roger, Frederic Kuck, Eric Wagner "Asynchronous Continuous Level-Of-Detail and Texture-Mapping for Large-Scale Terrain Rendering Systems." (1 2006).

2005

  • Zhang,C,X; Xue,D,Q; Crawfis,R "Light propagation for mixed polygonal and volumetric data." in Computer Graphics International Conference (CGI 2005). (1 2005).
  • Xue,D,Q; Zhang,C,X; Crawfis,R "iSBVR: Isosurface-aided hardware acceleration techniques for slice-based volume rendering." in 4th International Workshop on Volume Graphics. (1 2005).
  • Xue,D,Q; Wallace,D; Crawfis,R "A new 3D display using a dynamically reconfigurable display matrix surface." in Computer Graphics International Conference (CGI 2005). (1 2005).
  • Zhang,C,X; Xue,D,Q; Crawfis,R; Wenger,R "Time-varying interval volumes." in Proceedings of the Fourth Eurographics / IEEE VGTC conference on Volume Graphics. (7 2005).

2004

  • Xue,D,Q; Crawfis,R "Fast dynamic flow volume rendering using textured splats on modern graphics hardware." in Conference on Visualization and Data Analysis 2004. (1 2004).
  • Bhaniramka,P; Zhang,C,X; Xue,D,Q; Crawfis,R; Wenger,R "Volume interval segmentation and rendering." in IEEE/SIGGRAPH Symposium on Volume Visualization and Graphics (VolVis 2004). (1 2004).
  • Xue,D,Q; Zhang,C,X; Crawfis,R "Rendering Implicit Flow Volumes." in Proceedings of the conference on Visualization '04. (1 2004).

2003

  • Lining Yang, Roger Crawfis "A panoramic walkthrough system with occlusion culling." in Proceedings of the workshop on Virtual environments 2003. (1 2003).
  • Zhang,C,X; Crawfis,R "Shadows and soft shadows with participating media using splatting." in IEEE Volume Visualization and Graphics Symposium. (4 2003).

2002

  • Lining Yang, Roger Crawfis "Rail-track viewer: an image-based virtual walkthrough system." in Proceedings of the workshop on Virtual environments 2002. (1 2002).
  • Zhang,C; Crawfis,R "Volumetric shadows using splatting." in Proceedings of the conference on Visualization '02. (1 2002).
  • Shareef,N; Crawfis,R "A view-dependent approach to MIP for very large data." in Conference on Visualization and Data Analysis 2002. (1 2002).

2001

  • Huang, J., R. Crawfis, S, Lu, C. Shu "A Complete Distance Specification." (1 2001).

2000

  • Meissner, Micheal, Jian Haung, Dirk Bartz, Klaus Mueller, Roger Crawfis "Comparison of the Four Predominant Volume Rendering Techniques." (1 2000).
  • Camuto,M; Crawfis,R; Becker,B "Approximating scatterplots of large datasets using distribution splats." in 7th Meeting on Visual Data Exploration and Analysis. (1 2000).
  • Huang,J; Mueller,K; Shareef,N; Crawfis,R "FastSplats: Optimized splatting on rectilinear grids." in IEEE Visualization Conference. (1 2000).
  • Bhaniramka,P; Wenger,R; Crawfis,R "Isosurfacing in higher dimensions." in IEEE Visualization Conference. (1 2000).

1999

  • Jian Huang, Klaus Mueller, Naeem Shareef and Roger Crawfis "VOXBLT: An Efficient and High-Quality Splat Primitive." (1 1999).
  • Mueller, Klaus, Torsten Moeller, Roger Crawfis "Splatting without the Blur." (1 1999).
  • Stredney,D; Crawfis,R; Wiet,G,J; Sessanna,D; Shareef,N; Bryan,J "Interactive volume visualizations for synchronous end asynchronous remote collaboration." in Conference on Medicine Meets Virtual Reality 7. (1 1999).
  • Mueller, K., Shareef, N., Huang, J., and Crawfis, R. "IBR-Assisted Volume Rendering." (1 1999).
  • King, Scott A., Roger A. Crawfis and Wayland Reid "Fast Animation of Amorphous and Gaseous Volumes." (1 1999).

1998

  • Huang,J; Crawfis,R; Stredney,D "Edge preservation in volume rendering using splatting." in IEEE Symposium on Volume Visualization. (1 1998).
  • Hazard, Chris, Jian Huang and Roger Crawfis "2D Image Reconstruction with Simultaneous Edge Preservation and Blur." (1 1998).

1997

  • Swan,J,E; Mueller,K; Moller,T; Shareef,N; Crawfis,R; Yagel,R "An anti-aliasing technique for splatting." in 8th Annual IEEE Conference on Visualization. (1 1997).

1995

  • Max,N; Crawfis,R ADVANCES IN SCIENTIFIC VISUALIZATION. in Conference on Visual Data Exploration and Analysis II. http://www.llnl.gov/graphics, (1 1995).
  • Max, Nelson, Crawfis, Roger and Barry Becker "Applications of Texture Mapping to Volume and Flow Visualization." (1 1995).

1994

  • Max,N; Crawfis,R; Grant,C "VISUALIZING 3D VELOCITY FIELDS NEAR CONTOUR SURFACES." in Visualization 94 Conference. (1 1994).

1993

  • Max,N; Becker,B; Crawfis,R "FLOW VOLUMES FOR INTERACTIVE VECTOR FIELD VISUALIZATION." in Visualization 93, the 4th Annual IEEE Conference on Visualization. (10 1993).
  • Max, Nelson, Roger Crawfis and Barry Becker "New Techniques in 3D Scalar and Vector Field Visualization." (8 1993).
  • Crawfis,R; Max,N; Becker,B; CABRAL,B "VOLUME RENDERING OF 3D SCALAR AND VECTOR-FIELDS AT LLNL." in Supercomputing 93 Conference. (1 1993).

1992

  • Max,N; Crawfis,R; Williams,D "VISUALIZING WIND VELOCITIES BY ADVECTING CLOUD TEXTURES." in 3RD ANNUAL CONF ON VISUALIZATION - VISUALIZATION 92. (10 1992).
  • Crawfis, Roger and Nelson Max "Direct Volume Visualization of Three-Dimensional Vector Fields." (1 1992).

1991

  • CRAWFIS,R,A; ALLISON,M,J "A Scientific Visualization Synthesizer." in 2ND ANNUAL CONF OF THE IEEE ON VISULIZATION ( VISUALIZATION 91 ). (10 1991).

Patents

  • Crawfis, Roger, F. C. Kuck, E. Noble, E. Wagner. "Obelisk Textures: A Multi-texturing Approach to Clip-maps." Patent number: 7626591
  • Becker,Barry,Glenn; Crawfis,Roger,A. "Method, system and computer program product for visually approximating scattered data using color to represent values of a categorical variable." Patent number: 6373483