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John Dingliana
Assistant Professor, Computer Science

Biography

Dr. John Dingliana graduated with a B.Sc. Honors degree in Computer Science from University College Dublin in 1998 and received his PhD in the Department of Computer Science, Trinity College Dublin in 2003. His PhD thesis was titled Adaptive Levels of Detail for Interactive Collision Handling. He was appointed as a Lecturer in Computer Science from 2000-2002 and Research Fellow in the Interaction Simulation and Graphics group, TCD from 2002-2005. Since July 2005 he is an Assistant Professor in the School of Computer Science and Statistics, Trinity College Dublin. His main research interests are in real-time computer graphics, interactive visualisation and augmented and virtual reality.

Publications and Further Research Outputs

Peer-Reviewed Publications

Subhrajyoti Maji and John Dingliana, Perceptually Optimized Color Maps for Visualizing Large Numbers of Features, Second International Conference on Advanced Computational and Communication Paradigms, Sikkim Manipal Institute of Technology, Sikkim, India, February 25 - 28, IEEE, 2019 Conference Paper, 2019 URL DOI

Salaheddin Alakkari and John Dingliana, An Acceleration Scheme for Mini-batch, Streaming PCA, British Machine Vision Conference (BMVC), Cardiff, UK, September 9-12, 201, 2019, pp1 - 12 Conference Paper, 2019 URL

Salaheddin Alakkari and John Dingliana, Modelling Large Scale Datasets Using Partitioning-based PCA, IEEE International Conference on Image Processing, Taipei, Taiwan, September 22-25, 2019, pp2646 - 2650 Conference Paper, 2019 DOI

Subhrajyoti Maji and John Dingliana, A Perceptually Optimized Color Selection Technique for Visualization , IEEE Visualization, Berlin, Germany, October 21 -- 26, 2018 Poster, 2018 TARA - Full Text

Shengzhou Luo and John Dingliana, Intuitive Transfer Function Editing Using Relative Visibility Histograms, 26, (1), 2018, p48-57 Journal Article, 2018 TARA - Full Text

Salaheddin Alakkari, A Multi-View Image-Based Volume Visualization Technique, IEEE Visualization, Berlin, Germany, October 21 -- 26, 2018 Poster, 2018 TARA - Full Text

Salaheddin Alakkari and John Dingliana, An Accelerated Online PCA with O(1) Complexity for Learning Molecular Dynamics Data, Workshop on Molecular Graphics and Visual Analysis of Molecular Data, Brno, Czech Republic, June 4, 2018, 2018, pp1-8 Conference Paper, 2018

Lazaro Campoalegre, Tom Noonan and John Dingliana, Exploiting Spatio-temporal Coherency in Time-Varying Visualization Over Network Environments, Computer Graphics, Visualization, Computer Vision and Image Processing, Lisbon, Portugal, 21 July, 2017, edited by Yingcai Xiao and Ajith P. Abraham , 2017, pp163 - 172 Conference Paper, 2017

Ran, L. and Dingliana, J., Infocarve: A Framework for Volume Visualization on Commodity Augmented Reality Displays, (7938241), 2017, pp473-479 Conference Paper, 2017 DOI

Shengzhou Luo and John Dingliana, Transfer function optimization using a combined measure of visibility and saliency, Spring Conference on Computer Graphics, Mikulov, Czech Republic, May 15 - 17, 2017, 2017 Conference Paper, 2017 DOI

Shengzhou Luo and John Dingliana, Intuitive Transfer Function Editing Using Relative Visibility Histograms, IEEE Vis, Phoenix, Arizona, USA, 1 - 6 October, 2017 Poster, 2017

Principal Component Analysis Techniques for Visualization of Volumetric Data in, editor(s)Ganesh Naik , Advances in Principal Component Analysis - Research and Development, Springer Verlag, 2017, pp99 - 120 , [Salaheddin Alakkari and John Dingliana] Book Chapter, 2017 DOI

Pisut Wisessing and John Dingliana and Rachel McDonnell, Perception of Lighting and Shading for Animated Virtual Characters , SAP '16 Proceedings of the ACM Symposium on Applied Perception , Anaheim, CA, USA, 22-23 July, 2016, 2016, pp1-5 Conference Paper, 2016

Salaheddin Alakkari and John Dingliana, Volume Visualization Using Principal Component Analysis, Eurographics Workshop on Visual Computing for Biology and Medicine, Bergen, Norway, 7 - 9 September, 2016 Conference Paper, 2016

Salaheddin Alakkari and John Dingliana, Volume Rendering using Principal Component Analysis., Eurographics and IEEE VGTC Conference on Visualization (EuroVis), Groningen, Netherlands, 6-10 June 2016, edited by T. Isenberg and F. Sadlo , Eurographics Association, 2016, pp1-3 Poster, 2016 TARA - Full Text URL Handle DOI

Lingqiang Ran and john Dingliana, A Framework for Volume Visualization on Commodity Augmented Reality Displays, International Conference on Virtual Reality and Visualization , Hangzhou, China, 23-25 September, 2016 Conference Paper, 2016

Shengzhou Luo and John Dingliana, Transfer Function Optimization Based on a Combined Model of Visibility and Saliency, Eurographics and IEEE VGTC Conference on Visualization, Gronigen, Netherlands, 6-10 June, 2016, edited by T. Isenberg and F. Sadlo , 2016, pp1-3 Poster, 2016 DOI

Lingqiang Ran, Niall Mullaly and John Dingliana, Interactive Focus and Context Augmented Reality Visualisation, COST Training School 3D-AVCom 2015, Lisbon, Portugal, 6 July, 2015, 2015 Poster, 2015

Shengzhou Luo and John Dingliana, Visibility-Weighted Saliency for Volume Visualisation, EGUK Computer Graphics and Visual Computing Conference, London, UK, 16 September 2015, 2015 Conference Paper, 2015 TARA - Full Text

Shengzhou Luo and John Dingliana, Selective Saturation and Brightness for Visualizing Time-Varying Data, EG / VGTC Conference on Visualization (EUROVIS 2015), Cagliari, Italy, 25 May, 2015, edited by R. Maciejewski and F. Marton , 2015 Poster, 2015 TARA - Full Text

Tom Noonan, Lazaro Campoalegre and John Dingliana, Temporal Coherence Predictor for Time Varying Volume Data Based on Perceptual Functions, 20th International Symposium on Vision, Modeling and Visualization (VMV 2015), Aachen, Germany, 07 October, 2015, edited by D. Bommes, T. Ritschel, and T. Schultz , 2015 Conference Paper, 2015 TARA - Full Text

Rowan Hughes, Jan Ondrej and John Dingliana, DAVIS : Density-Adaptive Synthetic-Vision Based Steering for Virtual Crowds , ACM SIGGRAPH Conference on Motion in Games 2015, Paris, France, 16 November, 2015, 2015, pp79 - 84 Conference Paper, 2015 TARA - Full Text

Shengzhou Luo and John Dingliana, Transfer Function Refinment for Exploring Volume Data, Eurasia Graphics - International Conference on Computer Graphics, Animation and Gaming Technologies, Ankara Turkey, October 14, 2014, pp1-8 Conference Paper, 2014 URL

Rowan Hughes, Jan Ondrej, John Dingliana, Holonomic Collision Avoidance for Virtual Crowds, Eurographics/ACM SIGGRAPH Symposium on Computer Animation, 2014, pp103 - 111 Conference Paper, 2014

Sayandeep Purkayasth, Roger Stalley, John Dingliana and Laura Cleaver, A new approach to analysis of interlace in the Book of Kells, Virtual Cultural Heritage Ireland, Dublin, Ireland, 27-28 February, 2014 Conference Paper, 2014 URL

Shengzhou Luo and John Dingliana, Information-Guided Transfer Function Refinement, Eurographics 2014 Short Papers, Strasbourg France, 7 - 11 April, 2014 Conference Paper, 2014 DOI

Rowan Hughes, Jan Ondrej and John Dingliana, Experiment-based Modelling and Simulation of Holonomic Collision Avoidance Strategies for Virtual Humans, Poster at Motion in Games 2013, Dublin, Ireland, 7 - 9 November, 2013 Poster, 2013

Computer-Assisted Repurposing of Existing Animations in, editor(s)Paul Rosin and John Collomosse , Image and Video-based Artistic Stylisation, London, Springer, 2013, pp285 - 208, [Daniel Sykora and John Dingliana] Book Chapter, 2013 URL

Andrew Corcoran and John Dingliana, Image Space Adaptive Volume Rendering, Conference on Visualisation and Data Analysis 2012, Burlingame, CA, USA, 23-25 January 2012, edited by P.C.Wong, D.L.Kao, M.C.Hao and C. Chen , 2012, pp82940M - 82940M-9 Conference Paper, 2012 URL DOI

Fintan McGee and John Dingliana, Visualising Small World Graphs: Agglomerative clustering of Small World Graphs Around Nodes of Interest, IVAPP 2012: International Conference on Information Visualisation Theory and Applications 2012, Rome, Italy, 24-26 February, 2012, INSTICC, 2012, pp678 - 689 Conference Paper, 2012 DOI

Andrew Corcoran and John Dingliana, Real-Time Illumination for Two-Level Volume Rendering, Lecture Notes in Computer Science, International Symposium on Visual Computing, Crete Greece, July 16 - 18, 2012, 7431, Springer Berlin Heidelberg, 2012, pp544 - 555 Conference Paper, 2012 URL DOI

Fintan McGee and John Dingliana, An empirical study on the impact of edge bundling on user comprehension of graphs, Advanced Visual Interfaces 2012, Naples, Italy, 21 - 25 May, 2012, edited by Stefano Levialdi and Genny Tortora , ACM, 2012, pp620 - 627 Conference Paper, 2012 DOI URL

Sayandeep Purkayasth, John Dingliana and Roger Stalley, Investigating the Style and Artforms in the Book of Kells, Poster at International Symposium on Computational Aesthetics in Graphics, Visualization, and Imaging, Vancouver, Canada, 5-7 August 2011, 2011 Poster, 2011 URL

Cormac O'Brien, John Dingliana and Steven Collins, Spacetime Vertex Constraints for Dynamically-based Adaptation of Motion-Captured Animation, Eurographics/ACM Siggraph Symposium on Computer Animation 2011, Vancouver, Canada, 5 - 7 August, 2011, edited by A. Bargteil and M. van de Panne , ACM, 2011, pp277 - 286 Conference Paper, 2011 DOI

Niall Redmond, Andrew Corcoran and John Dingliana, Evaluating the Stylistic Enhancement of Two-level Volume Rendering, International Symposium on Computational Aesthetics in Graphics, Visualization, and Imaging, London, UK, 14-15 June, 2010, edited by Peter Hall , 2010 Poster, 2010

Andrew Corcoran, Niall Redmond and John Dingliana, Perceptually Optimised Non-Photorealistic Rendering of Biological and Medical Volume Data, The second Eurographics Workshop on Visual Computing for Biology and Medicine , Leipzig, Germany, July 1-2, 2010, 2010 Poster, 2010

Andrew Corcoran, Niall Redmond and John Dingliana, Perceptual enhancement of two-level volume rendering, Computers & Graphics, 34, (4), 2010, p4009-4031 Journal Article, 2010 DOI TARA - Full Text

Fintan McGee and John Dingliana, An Evaluation of the Use of Clustering Coefficient as a Heuristic for the Visualisation of Small World Graphs, Theory and Practice of Computer Graphics, University of Sheffiled, UK, 6-8 September, 2010, edited by John Collonosse and Ian Grimstead , Eurographics Association, 2010 Conference Paper, 2010 DOI

Daniel Sykora, David Sedlacek, Sun Jinchao, John Dingliana, and Steven Collins, Adding Depth to Cartoons Using Sparse Depth (In)equalities, Computer Graphics Forum, 29, (2), 2010, p615 - 623 Journal Article, 2010 URL DOI

Bartosz Fabianowski, Colin Fowler and John Dingliana, A Cost Metric for Scene-Interior Ray Origins, Eurographics Short Paper, Munich, Germany, March 2009, edited by P. Alliez and M. Magnor , Eurographcis Association, 2009, pp49 - 52 Conference Paper, 2009

Bartosz Fabianowski and John Dingliana, Interactive Global Photon Mapping, Computer Graphics Forum, 28, (4), 2009, p1151 - 1159 Journal Article, 2009 URL DOI

Niall Redmond and John Dingliana, Investigating the effect of real-time stylisation techniques on user task performance, Symposium on Applied Perception in Graphics and Visualisation, Chania, Greece, 30 Septemeber, edited by Stephen Spencer , 2009, pp121 - 124 Conference Paper, 2009 DOI

Daniel Sykora, John Dingliana, and Steven Collins, LazyBrush: Flexible Painting Tool for Hand-drawn Cartoons, Computer Graphics Forum, 28, (2), 2009, p599 - 608 Journal Article, 2009 DOI URL

Bartosz Fabianowski and John Dingliana, Interactive Global Photon Mapping, Eurographics Symposium on Rendering (EGSR), Girona, Spain, June 29, 2009, edited by Hendrik P. A. Lensch and Peter-Pike Sloan , 2009, pp1151 - 1159 Conference Paper, 2009 DOI

Niall Redmond and John Dinglian, A Hybrid Approach to Real-Time Abstraction, Eurographics Ireland 2009, Trinity College Dublin, Ireland, December 2009, 2009, pp43 - 50 Conference Paper, 2009

Niall Redmond and John Dingliana, Influencing User Attention Using Real-Time Stylised Rendering, TPCG 2009: Theory and Practice of Computer Graphics, Cardiff, UK, 17-19 June, edited by Wen Tang and John Collomosse , 2009, pp173 - 180 Conference Paper, 2009 DOI TARA - Full Text

Andrew Corcoran and John Dingliana, Line Drawing Enhancement of Volume Rendering, International Symposium on Non-photorealistic Animation and Rendering NPAR2009, Los Angeles, CA, USA, August 1-2, 2009, 2009 Poster, 2009

Daniel Sykora, John Dingliana, and Steven Collins, As-Rigid-As-Possible Image Registration for Hand-drawn Cartoon Animations, Proceedings of the 7th International Symposium on Non-Photorealistic Animation and Rendering (NPAR'09), New Orleans, USA, 2009, pp25 - 33 Conference Paper, 2009 DOI

Bartosz Fabianowski and John Dingliana, Compact BVH Storage for Ray Tracing and Photon Mapping, Eurographics Ireland 2009, Trinity College Dublin, Ireland, edited by Y. Morvan and V. Sundstedt , 2009, pp1 - 8 Conference Paper, 2009

Nial Redmond and John Dingliana, Evaluation of Non-Photorealistic Abstraction Techniques in Influencing User Behaviour, Symposium on Applied Perception in Graphics and Visualisation (APGV '08), Los Angeles, CA, USA, 9-10 August, 2008, edited by S. Creem-Regehr and K. Myszkowski , ACM Press, 2008 Poster, 2008

Niall Redmond and John Dingliana, A Hybrid Technique for Creating Meaningful Abstractions of Dynamic 3D Scenes in Real-Time, International Conference in Eastern Europe on Computer Graphics, Visualization and Computer Vision (WSCG '08), Plzen, Czech Republic, February 4-7, 2008, edited by Steve Cunningham and Vaclav Skala , University of West Bohemia, 2008, pp105 - 112 Conference Paper, 2008

Marcos Garcia and John Dingliana and Carol O'Sullivan, Perceptual Evaluation of Cartoon Physics: Accuracy, Attention, Appeal, APGV'08 : Symposium on Applied Perception in Graphics and Visualisation , Los Angeles, CA, USA, 9-10 August, 2008, edited by S. Creem-Regehr and K. Myszkowski , ACM Press, 2008, pp107 - 114 Conference Paper, 2008

Muiris Woulfe, John Dingliana and Michael Manzke, Hardware Accelerated Broad Phase Collision Detection for Interactive Entertainment Applications, Irish Graduate Student Symposium on Vision, Graphics and Visualisation 2008 (VGV08), Dublin, Ireland, 5 June 2008, edited by Gerard Lacey, Alan Smeaton and Aaron Quigley , Trinity College Dublin, 2008, pp20 Poster, 2008 URL TARA - Full Text

Bartosz Fabianowski and John Dingliana, Sketching Complex Generalized Cylinder Spines, Computer Graphics International Conference CGI2008, Istanbul, Turkey, June 9-11, 2008, 2008, pp49 - 52 Conference Paper, 2008

Oscar Belmonte and John Dingliana, Acceleration techniques applied to non-photorealistic visualisation of polygonal models, Eurographics Irish Chapter Workshop 2007, Dublin, December 17, 2007, edited by John T. Ryan , 2007, pp81 - 87 Conference Paper, 2007

Marcos Garcia, John Dingliana and Carol O'Sullivan, A Physically Based Deformation Model for Interactive Cartoon Animation, The 4th International Workshop on Virtual Reality Interactions and Physical Simulations 2007, Dublin, 9th November 2007, edited by John Dingliana and Fabio Ganovelli , The Eurographics Association, 2007, pp27 - 34 Conference Paper, 2007 DOI URL

Muiris Woulfe, John Dingliana and Michael Manzke, Hardware Accelerated Broad Phase Collision Detection for Realtime Simulations, 4th Workshop on Virtual Reality Interaction and Physical Simulation (VRIPHYS 2007), Dublin, Ireland, 9 November 2007, edited by John Dingliana and Fabio Ganovelli , Eurographics Association, 2007, pp79 - 88 Conference Paper, 2007 TARA - Full Text DOI URL

Niall Redmond and John Dingliana, Adaptive Abstraction of 3D Scenes in Realtime, Eurographics 2007 Short Papers, Prague, Czech Republic, 3-7 September, 2007, edited by P. Cignoni and J Sochor , Eurographics Association, 2007, pp77 - 80 Conference Paper, 2007 URL TARA - Full Text

Ross Brennan, Michael Manzke, Keith O'Conor, John Dingliana and Carol O'Sullivan, A Scalable and Reconfigurable Shared-Memory Graphics Cluster Architecture, International Conference on Engineering of Reconfigurable Systems and Algorithms (ERSA'07), Las Vegas, US, June 28, 2007, pp284 - 290 Conference Paper, 2007

Bartosz Fabianowski and John Dingliana, Toward 3D Selection and Skeleton Construction by Sketching, Eurographics Irish Chapter Workshop 2007, Dublin, December 17, 2007, edited by John.T. Ryan , 2007, pp18 - 25 Conference Paper, 2007

John Dingliana and Fabio Ganovelli(ed.), The 4th International Workshop on Virtual Reality Interactions and Physical Simulations, VRIPhyS, Dublin, 9th November 2007, The Eurographics Association, 2007 Proceedings of a Conference, 2007 URL

Muiris Woulfe, John Dingliana and Michael Manzke, Hardware Accelerated Broad Phase Collision Detection, The 34th International Conference and Exhibition on Computer Graphics and Interactive Techniques (SIGGRAPH 2007), San Diego, California, USA, 5-9 August 2007, edited by Marc Alexa and Adam Finkelstein , ACM, 2007 Poster, 2007 URL TARA - Full Text DOI

John Dingliana, A Survey of Stylisation in Computer Animation, Eurographics Irish Chapter Annual Workshop 2006, IADT Dun Laoghaire, Dublin, 31st October 2006, edited by C. Noonan , 2006, pp36 - 43 Conference Paper, 2006 TARA - Full Text

Michael Manzke, Ross Brennan, Keith O'Conor, John Dingliana and Carol O'Sullivan, A scalable and reconfigurable shared-memory graphics architecture, International Conference on Computer Graphics and Interactive Techniques (ACM SIGGRAPH 2006 Sketches), Boston, 30 July - 3 August, 2006, pp182 - 182 Conference Paper, 2006 DOI TARA - Full Text URL URL

John Dingliana and Carol O'Sullivan, A Voxel-based Approach to Approximate Collision Handling, Journal of Graphics Tools, 10, (4), 2005, p33 - 48 Journal Article, 2005 URL DOI

John Dingliana and Fabio Ganovelli(ed.), Eurographics 2005, Short Paper Presentations, Dublin, Ireland, September 2005, Image Synthesis Group, 2005 Proceedings of a Conference, 2005 URL

Carol O'Sullivan and John Dingliana and Thanh Giang and Mary K. Kaiser, Evaluating the visual fidelity of physically based animations, ACM Transactions on Graphics, International Conference on Computer Graphics and Interactive Techniques (ACM Siggraph 2003), San Diego, California, 27-31 July, 2003, 22, (3), ACM, 2003, pp527 - 536 Conference Paper, 2003 DOI

John Dingliana, Adaptive Levels of Detail for Interactive Collision Handling, University Of Dublin, Trinity College, 2003 Thesis, 2003

Eye movements and interactive graphics in, editor(s)Hyona, J. Radach, R. and Deubel, H. , The Mind's Eyes: Cognitive and Applied Aspects of Eye Movement Research, Oxford, Elsevier Science, 2003, pp555 - 571, [O'Sullivan, C. Dingliana, J. and Howlett, S.] Book Chapter, 2003 URL URL

O'Sullivan, C. Dingliana, J. Giang, T. and Kaiser, M.K., Evaluating the Visual Fidelity of Physically Based Animations , ACM Transactions on Graphics, 22, (4), 2003, p527 - 536 Journal Article, 2003 URL DOI

John Dingliana, Ann McNamara, Carol O'Sullivan(ed.), Eurographics Ireland 2002, Dublin, 1, March 2002, Trinity College Dublin, 2002 Proceedings of a Conference, 2002 URL

Carol O"Sullivan, Justine Cassell, Hannes Vilhjalmsson, John Dingliana, Simon Dobbyn, Brian McNamee, Christopher Peters, Thanh Giang, Levels of detail for crowds and groups, Computer Graphics Forum, 21, (4), 2002, p733 - 742 Journal Article, 2002 DOI URL TARA - Full Text

Carol O'Sullivan, Justine Cassell, Hannes Vilhjalmsson, Simon Dobbyn, Christopher Peters, William Leeson, Thanh Giang, John Dingliana, Crowd and Group Simulation with Levels of Detail for Geometry, Motion and Conversational Behaviour., Eurographics Irish Chapter Worjkshop., Dublin, Ireland, 2002, pp15 - 20 Conference Paper, 2002 URL

Carol O'Sullivan and John Dingliana, Real vs. approximate collisions: when can we tell the difference , ACM SIGGRAPH 2001 Sketches and Applications, Los Angeles, CA, US, 2001, edited by Dena Slothower , 2001, pp249 - 249 Conference Paper, 2001 URL

Carol O'Sullivan, John Dingliana, Fabio Ganovelli and Gareth Bradshaw, T6: collision handling for virtual environments, Eurographics 2001 Tutorials, Manchester, UK, 2001, 2001, pp1 - 35 Conference Paper, 2001 URL URL

O'Sullivan, C. and Dingliana, J., Collisions and Perception, ACM TRANSACTIONS ON GRAPHICS, 20, 2001, p151 - 168 Journal Article, 2001 URL DOI

Dingliana, J. O'Sullivan, C. Bradshaw, G. , Collisions and Adaptive Levels of Detail, ACM SIGGRAPH 2001 Sketches and Applications, Los Angeles, USA , August, 2001, edited by Dena Slothower , ACM Press, 2001, pp156 - 156 Meeting Abstract, 2001 URL

Carol O'Sullivan, Marc Janott, Mark Watson, John Dingliana, Level of Detail Control for Real-time Computer Graphics and Virtual Reality: Applications of Eye-tracking. , First Irish Workshop on Eye-Tracking, Dublin, Ireland, May 2000, 2000, pp11 - 14 Meeting Abstract, 2000 URL

John Dingliana and Carol O'Sullivan, Graceful degradation of collision handling in physically based animation, Computer Graphics Forum (EG2000), 19, (3), 2000, p239 - 247 Journal Article, 2000 URL DOI

Fabio Ganovelli, John Dingliana and Carol O'Sullivan, BucketTree: improving collision detection between deformable objects, Spring Conference in Computer Graphics, Bratislava, Slovakia, 2000, pp156 - 163 Conference Paper, 2000 URL

Carol O'Sullivan, John Dingliana, Real-time Collision Detection and Response using Sphere-trees, Spring Conference on Computer Graphics, Bratislava, Slovakia, 1999, pp83 - 92 Conference Paper, 1999 URL URL

Non-Peer-Reviewed Publications

Sayandeep Purkayasth, A Hierarchical Image Processing Approach to Analysis of Early Medieval Manuscript Art, 2015 Thesis, 2015

John Dingliana, Expressive Volume Visualisation, Invited Seminar at Universitat Polytecnica de Catalunya, VIRVIG Group, UPC, Barcelona, Spain, 22 April, 2015 Invited Talk, 2015

John Dingliana, Architecture in Virtual Environments, LunchBytes series Panel on Society: Public Space/Architecture, Irish Museum of Modern Art, Kilmainham, Dublin, 17 October, 2014, Goethe Institute and Irish Museum of Modern Art Invited Talk, 2014

John Dingliana, The History of Video Games Technology, Cork Film Festival, Cork, Ireland, 14th October, 2008 Invited Talk, 2008

Research Expertise

Description

My research lies in the fields of Computer Graphics and Visualization, specifically areas including animation, rendering, perceptually-adaptive techniques, visualization, stylised images and Augmented & Virtual Reality. The consistent thread in my research is the question of how information is optimally conveyed through visual digital media, in the context of increasing complexity of data, evolving display technologies and their widening uptake in user domains beyond those traditionally associated with computer graphics. Recent technological advances have vastly increased the scale of digital data that we process on an everyday basis, while graphics technology has reached levels fidelity that match perceptual limits of the human visual system. This raises many new challenges but also opportunities for furthering human consumption of data and enriching visual applications. I investigate how the most important aspects of static, dynamic and interactive data can be emphasized to help users process visual information, and how to simplify where detail is not warranted. Visual output is thereby optimized for tasks ranging from leisurely goals such as enjoyment, engagement or aesthetics to precision-oriented objectives such as visual analysis in science and medicine. My early publications were amongst the first to apply adaptive detail mechanisms in Physically-based animation and to leverage human perceptual studies of movement to optimize this adaptation. In more recent, work I conducted analogous studies applying perceptually-driven adaptation to other areas such as rendering and ultimately to solve real-world scientific problems such as real-time visualization of time-varying data, for which I received an SFI Investigator award. A key outputs of this project was one for the first models to provide automated measures for perceptual effectiveness of 3D spatial data visualization, and to use this model to automatically enhance such visualizations.

Projects

  • Title
    • aRTIVVIS: Real-time Time-variant Volume Visualisation
  • Summary
    • This proposal addresses the problem of real-time interactive visualisation of 3D scientific data, namely volumetric datasets, which are ubiquitous in many application domains such as Medicine, Biology, BioMechanics, Neuroscience, Fluid Dynamics and Veterinary Medicine. Specifically, we deal with the problem of time-variant and multivariate volume data sets which have become more readily available in recent years due to improved scanning technologies and simulation techniques. Such data sets are particularly difficult to deal with due to their computational complexity as well as the information overload that can arise from such visually challenging data. We will employ graphics hardware and parallel computing strategies to address the performance issue, whilst information overload will be dealt with using techniques from perceptually adaptive graphics, computational aesthetics and non-photorealistic rendering which apply smart techniques to improve usability and understandability of data.
  • Funding Agency
    • Science Foundation Ireland
  • Date From
    • 01/09/2014
  • Date To
    • 31/08/2014
  • Title
    • INFOCARVE: Focus and Context Visualisation for Augmented Reality
  • Summary
    • Leveraging our previous work in interactive 3D visualisation, we propose to develop a system for optimised 3D visualisation overlays in Augmented Reality (AR). The system will provide visualisation functions specific for AR that will be reusable in a number of different application domains. In order to achieve improved visualisation, we employ illustrative rendering techniques (e.g. line drawings) that occupy less screen space, minimally obscuring the real scene. Our previous work has shown that such visualisation can still convey extremely useful information about the shape and structure of virtual objects. In addition we apply user guided techniques to highlight specific parts of the data set important to the user, whilst abstracting extraneous information employing a focus-and context paradigm commonly used in visualisation.
  • Funding Agency
    • SFI
  • Date From
    • 1/1/2015
  • Date To
    • 31/12/2014
  • Title
    • The Book of Kells: Investigations of style and design through Non-photorealistic Rendering techniques
  • Summary
    • The project will tackle some long standing problems associated with the style and design of decoration within the Book of Kells through the use of digital media. Employing the methods of non-photorealistic rendering, specific stylistic and design features will be captured and analysed, with the aim of exploring geometrical patterns and compositions, colour palettes and material properties, as well as visceral mood and style. The aim is to place traditional methods of style analysis employed by the art historian on a deeper, more objective and scientific basis. The project will provide an innovative approach to long standing problems, while at the same time giving the Book itself a new and more dynamic relevance in 21st century society. This project will involve developing innovative techniques for the interactive visualisation of digitally scanned imagery from the Book of Kells. Technical contributions will include the segmentation of the imagery into its stylistic components, which will enable the interactive exploration of the images for scholarly academic analysis in particular by art historians. We will develop techniques for generating high-fidelity interactive renderings of the pages of the book, complete with accurate modelling of material and surface properties of the vellum and pigments under varying simulated lighting conditions. Analysis and modelling of the styles, colours and techniques used in the creation of its pages will allow us to develop tools for producing imagery and digital content themed on the book. We will also develop techniques for remote and online exploration of this historical and artistic content in order to facilitate applications that can reach and engage students and the general public.
  • Funding Agency
    • Trinity College Dublin
  • Date From
    • October 2010
  • Date To
    • September 2014
  • Title
    • Perceptually Optimized Rendering for Dynamic 3D Visualization
  • Summary
    • This project addresses the problem of interactive/real-time visualization of highly complex dynamic 3D geometric data, including but not limited to high-resolution volumetric data, highly tessellated surface meshes or point-clouds obtained from 3D scanners. In particular, we are concerned with the issue of visualizing dynamic data whilst it undergoes change. Naïve renderings of complex volumetric data often have a tendency to inflict "information overload" on the user due to too much visual data being presented at once, which is exacerbated when the data is dynamic. Our solution will draw on previous research from perception, volume rendering and non-photorealistic rendering (NPR) literature and combine it with previously explored strategies in interaction design (e.g. cutaway/exploded views) towards a system which is perceptually optimized for interactive visualization. One specific implementation goal is to facilitate the visualisation of time-variant volumetric data such as 3D Ultrasound or 4D MRI.
  • Funding Agency
    • Science Foundation Ireland (SFI)
  • Date From
    • August 2008
  • Date To
    • July 2011
  • Title
    • Interactive 3D Authoring and Non-Photo-realistically Rendered Interfaces
  • Summary
    • Interactive 3D environments have become ubiquitous in recent years however free-form modelling and authoring detailed environments is still a skill that is reserved for technically-experienced animators and 3D modellers. Using non-traditional interfaces such as sketching tablets, haptic interfaces and simple motion capture coupled with Non-photorealistically rendered views, we seek to make 3D scene authoring and interaction more accessible for a more general class of users, possibly including first time users, children and disabled users.
  • Funding Agency
    • IRCSET
  • Date From
    • 01/10/2006
  • Date To
    • 30/09/2009
  • Title
    • Perceptually Optimised Interactive Visualization
  • Summary
    • The goal is to develop techniques for interactive visualisation of complex large scale dynamic data sets. This will incorporate novel interaction and input interfaces and perceptually optimised rendering strategies.
  • Funding Agency
    • IRCSET
  • Date From
    • Nov. 2007
  • Date To
    • Oct. 2010

Keywords

3-D MODELLING; ALGORITHMS; ANIMATION; COLLISION HANDLING; Computer Animation; Computer Graphics; Computer graphics, Meta computing; Computer Science; Computer Science/Engineering; Digital systems, representation; Interactive Visualisation; Modelling, modelling tools, 3D modelling; Non-photorealistic Animation and Rendering (NPAR); Programming, Information systems; Real-Time Computing; Scientific Visualisation; Virtual Reality; Volume Graphics

Recognition

Representations

Chair of the Irish Chapter of the European Association for Computer Graphics (EUROGRAPHICS) May 2014

Co-chair VRIPhys 2007: International Workshop on Virtual Reality Interactions and Physical Simulations 2007

Co-chair: EUROGRAPHICS 2005 Short Paper programme 2005

Programme Co-chair - Eurographics Ireland Workshop March 2002

Reviewer - IEEE Transactions on Visualization and Computer Graphics Journal

Reviewer - Computer Graphics Forum Journal

Reviewer - ACM Transactions on Applied Perception Journal

Reviewer - International Journal of Systems & Applications in Computer Graphics

Reviewer for International Journal of Interactive Worlds

Reviewer - Electronics and Telecommunications Research Institute (ETRI) Journal

Reviewer - Frontiers of Information Technology & Electronic Engineering Journal

Reviewer IEEE Spectrum magazine

Reviewer - ACM SIGGRAPH Asia Courses

Reviewer - ACM Siggraph

Awards and Honours

Günter Enderle Award for Best Paper at Eurographics Annual Conference 2010 7 May, 2010

Best Paper Award - International Conference on Computer Graphics, Visualization , Computer Vision and Image Processing (CGCVIP) July 2017

Best Poster Award - Eurographics / IEEE-VGTC Conference on Visualization (EuroVis) June, 2016

Memberships

EUROGRAPHICS: European Association for Computer Graphics 1999 – 2019

Association for Computing Machinery (ACM) - SIGGRAPH Member 2001 – 2019

IEEE Visualization and Graphics Technical Committee 2014 – 2019