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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.

Research Tags

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

Research Projects

Project Title

TRANSMIXR - Ignite the Immersive Media Sector by Enabling New Narrative Visions

From

October 1, 2022

September 30, 2025

Summary

TRANSMIXR is a collaborative EU project involving 20 partners from industry and academia with the goal of creating novel human-centric tools for remote content production and consumption via social virtual reality. Members of the Graphics and Vision lab at Trinity College Dublin (TCD) are participating in the project by contributing technical expertise and experience in immersive technology, including Extended Reality (XR) development and Volumetric Video understanding. TCD will conduct research in the use of Computer Vision and Graphics techniques for the semantic understanding of Volumetric Video, an emergent digital media format comprising 3D geometry and appearance capture from the real world. Volumetric video has many potential novel applications in the areas of Augmented, Mixed and Virtual reality, for instance in the animation of personalized and photo-realistic 3D holograms of real people. The objective of our work in TRANSMIXR is to improve the quality of volumetric video and increase its ease of deployment and interoperability with other, more traditional, forms of digital media. The team at TCD will also contribute to the consortium's broader activities including the development of a collaborative XR Creation Environment for the application of multimodal Extended Reality in novel uses cases such as the newsrooms and museums of the future or XR applications in performing arts.

Funding Agency

European Commission

Programme

Horizon Europe Framework Program (HORIZON)

Project Type

Innovation Action

Project Title

aRTIVVIS: Real-time Time-variant Volume Visualisation

From

01/09/2014

31/08/2014

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

Programme

Investigators Program

Project Type

Basic Research

Person Months

192

Project Title

INFOCARVE: Focus and Context Visualisation for Augmented Reality

From

1/1/2015

31/12/2014

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

Programme

TIDA (Technology Innovation Development Award)

Project Type

Applied Research

Person Months

Project Title

The Book of Kells: Investigations of style and design through Non-photorealistic Rendering techniques

From

October 2010

September 2014

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

Programme

TCD Innovation Bursaries 2010

Project Title

Perceptually Optimized Rendering for Dynamic 3D Visualization

From

August 2008

July 2011

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)

Programme

Research Frontiers

Project Type

Basic Research

Person Months

Page 1 of 2

Representations

Details	Date
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

Languages

Language	Skill Reading	Skill Writing	Skill Speaking
English	Fluent	Fluent	Fluent
German	Basic	Basic	Basic
Hindi	Basic	Basic	Basic

Memberships

Membership of Professional Institutions, Associations, Societies

Details	Date From	Date To
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

Publications and other Research Outputs

Thuilier, E., Carey, J., Whelan, B., Dingliana, J., Dempsey, M., Biggins, S., Thuilier, K., & Brennan, A., Virtual Rehabilitation for Patients with Osteoporosis: Translating Physiotherapy Exercises into Exergames, Irish Machine Vision and Image Processing Conference 2023 (IMVIP2023), University of Galway, Ireland, 7 August, 2023, 2023, pp1 - 8, Conference Paper, PUBLISHED DOI

Eléa Thuilier, John Carey, John Dingliana, Mary Dempsey, Brian Whelan, Attracta Brennan, Virtual Rehabilitation training for people with Osteoporsis., VR4Rehab, Amsterdam, 29-30 June, 2023, 2023, Conference Paper, PUBLISHED

Ooi, C.W. and Dingliana, J., Perceptually enhanced shadows for OST AR, Proceedings of the 14th International Workshop on Immersive Mixed and Virtual Environment Systems, Athlone, Ireland, June 2022, ACM, 2022, pp30-36 , Conference Paper, PUBLISHED DOI URL

Ooi, C.W. and Dingliana, J., Color LightField: Estimation Of View-point Dependant Color Dispersion In Waveguide Display, (13), 2022, Notes: [cited By 0], Conference Paper, PUBLISHED DOI

Transfer Function Refinement for Exploring Volume Data in, editor(s)Veysi Isler, Hasmet Gurcay, Hasan Kemal Suher, Guven Catak , Contemporary Topics in Computer Graphics and Games : Selected Papers from the Eurasia Graphics Conference Series, Peter Lang, 2020, pp359 - 380, [Shengzhou Luo, John Dingliana], Notes: [https://doi.org/10.3726/b16279], Book Chapter, PUBLISHED

Alakkari, S. and Dingliana, J., An acceleration scheme for mini-batch, streaming PCA, 2020, Notes: [cited By 0], Conference Paper, PUBLISHED

Pisut Wisessing, Katja Zibrek, Douglas W. Cunningham, John Dingliana, Rachel McDonnell, Enlighten Me: Importance of brightness and shadow for character emotion and appeal, ACM Transactions on Graphics, 39, (3), 2020, Journal Article, PUBLISHED DOI

Ooi C.W., Dingliana J., Colored Cast Shadows for Improved Visibility in Optical See-Through AR, SIGGRAPH Asia 2020 Posters. SA 2020, 2020, Journal Article, PUBLISHED DOI

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, PUBLISHED DOI

Subhrajyoti Maji and John Dingliana, Perceptually Optimized Color Maps for Visualizing Large Numbers of Features, 2nd International Conference on Advanced Computational and Communication Paradigms, Sikkim Manipal Institute of Technology, Sikkim, India, February 2019, IEEE, 2019, pp1 - 6, Conference Paper, PUBLISHED DOI URL

Page 1 of 10

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

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

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, PRESENTED

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

Awards and Honours

Award	Date
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

Research Interests

Description Of Research Interests

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.

Trinity College Dublin, The University of Dublin

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Dr. John Dingliana

Dr. John Dingliana

Assistant Professor (Computer Science)

Non College Properties

john.dingliana@tcd.ie

3531896 3680

http://www.scss.tcd.ie/John.Dingliana

Biography

Research Tags

Research Projects

Representations

Languages

Memberships

Membership of Professional Institutions, Associations, Societies

Publications and other Research Outputs

Publications

Awards and Honours

Research Interests

Description Of Research Interests