Staff profile

Personal web pages http://www.dur.ac.uk/ioannis.ivrissimtzis

I am an Associate Professor in the Department of Computer Science of Durham University. I have a degree in mathematics from the University of Thessaloniki, Greece and a PhD in mathematics from the University of Southampton. Before joining Durham University I was a lecturer at the Department of Creative Computing in Coventry University. Before that, I was a researcher at the Department of Computer Graphics of the
Max-Planck Institut fuer Informatik, in Saarbruecken, Germany and before that, a Research Associate at the Computer Laboratory of Cambridge University.

My research interests are in the area of computer graphics. In particular, I work on subdivision surfaces, polygonal mesh encoding and the application of statistical learning methods in surface reconstruction from scan data.

• 2003: Talk at Computer Science Colloquia, University of Wales Swansea, UK: I was invited to give a talk at Computer Science Colloquia, University of Wales Swansea, UK. The title was "Statistical Learning in Surface Reconstruction".
• 2002: Talk at Workshop on Geometric Modeling, Dagstuhl, Germany (Dagstuhl event 02201): I was invited to participate and give a tak at the Workshop on Geometric Modeling, in Dagstuhl, Germany, in May 2002. The title of the talk was "Evolving n-gons in subdivision schemes with small support".

Chapter in book

• User-Defined Hand Gesture Interface to Improve User Experience of Learning American Sign Language
  Wang, J., Ivrissimtzis, I., Li, Z., Zhou, Y., & Shi, L. (2023). User-Defined Hand Gesture Interface to Improve User Experience of Learning American Sign Language. In C. Frasson, P. Mylonas, & C. Troussas (Eds.), Augmented Intelligence and Intelligent Tutoring Systems: 19th International Conference, ITS 2023, Corfu, Greece, June 2-5, 2023, Proceedings (479-490). Springer Verlag. https://doi.org/10.1007/978-3-031-32883-1_43
• Subdivision Surfaces and Applications
  Catalano, C., Ivrissimtzis, I., & Nasri, A. (2008). Subdivision Surfaces and Applications. In L. De Floriani, & M. Spagnuolo (Eds.), Shape analysis and structuring (115-143). Springer Verlag. https://doi.org/10.1007/978-3-540-33265-7_4

Conference Paper

• A multiscale optimisation algorithm for shape and material reconstruction from a single X-ray image
  Westmacott, H., Ivrissimtzis, I., & Weinzierl, T. (2024, January). A multiscale optimisation algorithm for shape and material reconstruction from a single X-ray image. Presented at ICIGP 2024: The 7th International Conference on Image and Graphics Processing, Beijing, China
• Anomaly Detection with Transformers in Face Anti-spoofing
  Abduh, L., Omar, L., & Ivrissimtzis, I. (2023, May). Anomaly Detection with Transformers in Face Anti-spoofing. Presented at WSGC 2023: 31. International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision 2023, Plzen, Czech Republic
• Exploring the Potential of Immersive Virtual Environments for Learning American Sign Language
  Wang, J., Ivrissimtzis, I., Li, Z., Zhou, Y., & Shi, L. (2023, September). Exploring the Potential of Immersive Virtual Environments for Learning American Sign Language. Presented at ECTEL 2023: Eighteenth European Conference on Technology Enhanced Learning, Aveiro, Portugal
• Developing and Evaluating a Novel Gamified Virtual Learning Environment for ASL
  Wang, J., Ivrissimtzis, I., Li, Z., Zhou, Y., & Shi, L. (2023, August). Developing and Evaluating a Novel Gamified Virtual Learning Environment for ASL. Presented at INTERACT 2023: IFIP Conference on Human-Computer Interaction, York
• Race Bias Analysis of Bona Fide Errors in Face Anti-spoofing
  Abduh, L., & Ivrissimtzis, I. (2023, September). Race Bias Analysis of Bona Fide Errors in Face Anti-spoofing. Presented at CAIP 2023: The 20th International Conference on Computer Analysis of Images and Patterns, Limassol, Cyprus
• Quality perception and discrimination thresholds in quantised triangle meshes
  Almutairi, A., Saarela, T., & Ivrissimtzis, I. (2021, June). Quality perception and discrimination thresholds in quantised triangle meshes. Presented at Sixth International Workshop on Pattern Recognition, Beijing, China
• Colour Processing in Adversarial Attacks on Face Liveness Systems
  Abduh, L., & Ivrissimtzis, I. (2019, December). Colour Processing in Adversarial Attacks on Face Liveness Systems. Presented at Computer Graphics and Visual Computing (CGVC), Bangor, UK
• A Perceptual Difference Scaling Study on Quantized 3D Models
  Almutairi, A., Saarela, T., & Ivrissimtzis, I. (2018, December). A Perceptual Difference Scaling Study on Quantized 3D Models. Paper presented at ACM Symposium on Applied Perception, Vancouver, Canada
• Single Image Watermark Retrieval from 3D Printed Surfaces via Convolutional Neural Networks
  Zhang, X., Wang, Q., & Ivrissimtzis, I. (2018, December). Single Image Watermark Retrieval from 3D Printed Surfaces via Convolutional Neural Networks. Presented at EG UK Computer Graphics & Visual Computing, Swansea, UK
• Order-randomized Laplacian mesh smoothing
  Yang, Y., Rushmeier, H., & Ivrissimtzis, I. (2016, June). Order-randomized Laplacian mesh smoothing. Presented at 9th International Conference on Mathematical Methods for Curves and Surfaces, Tønsberg, Norway
• A user study on quantisation thresholds of triangle meshes
  Almutairi, A., Saarela, T., & Ivrissimtzis, I. (2017, September). A user study on quantisation thresholds of triangle meshes. Presented at Computer Graphics and Visual Computing (CGVC) 2017., Manchester, England
• Designing a facial spoofing database for processed image attacks
  Omar, L., & Ivrissimtzis, I. (2016, November). Designing a facial spoofing database for processed image attacks. Presented at 7th International Conference on Imaging for Crime Detection and Prevention., Madrid, Spain
• Resilience of Luminance based Liveness Tests under Attacks with Processed Imposter Images
  Omar, L., & Ivrissimtzis, I. (2023, May). Resilience of Luminance based Liveness Tests under Attacks with Processed Imposter Images. Presented at 24th International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision 2016 (WSCG 2016)., Plzen, Czech Republic
• Evaluating the Resilience of Face Recognition Systems Against Malicious Attacks
  Omar, L., & Ivrissimtzis, I. (2015, September). Evaluating the Resilience of Face Recognition Systems Against Malicious Attacks. Presented at 7th UK Computer Vision Student Workshop (BMVW), Swansea, UK
• Mesh Alignment using Grid based PCA
  Kaye, D., & Ivrissimtzis, I. (2015, March). Mesh Alignment using Grid based PCA. Presented at 10th International Conference on Computer Graphics Theory and Applications (VISIGRAPP 2015), Berlin, Germany
• A steganalytic algorithm for 3D polygonal meshes
  Yang, Y., Pintus, R., Rushmeier, H., & Ivrissimtzis, I. (2014, October). A steganalytic algorithm for 3D polygonal meshes. Presented at 2014 IEEE International Conference on Image Processing (ICIP), Paris, France
• An evaluation of reconstruction filters for a path-searching task in 3D
  Roberts, D., Ivrissimtzis, I., & Holliman, N. (2014, September). An evaluation of reconstruction filters for a path-searching task in 3D. Presented at 2014 Sixth International Workshop on Quality of Multimedia Experience (QoMEX), Singapore, Singapore
• A Geometric Approach for the Computation of Principal Directions in Point Sets
  Ivrissimtzis, I. (2014, September). A Geometric Approach for the Computation of Principal Directions in Point Sets. Presented at Theory and Practice of Computer Graphics: Computer Graphics & Visual Computing (CGVC) 2014, Leeds, UK
• Model selection for the Dubuc-Deslauriers family of subdivision schemes
  Mustafa, G., & Ivrissimtzis, I. (2013, September). Model selection for the Dubuc-Deslauriers family of subdivision schemes. Presented at 14th IMA Conference on Mathematics of Surfaces, Birmingham, England
• Effects of Noise on Quantized Triangle Meshes
  Ivrissimtzis, I. (2010, December). Effects of Noise on Quantized Triangle Meshes. Presented at Mathematical Methods for Curves and Surfaces, Tonsberg, Norway
• Implicit surface reconstruction and feature detection with a learning algorithm
  Kaye, D., & Ivrissimtzis, I. (2010, September). Implicit surface reconstruction and feature detection with a learning algorithm. Presented at Theory and Practice of Computer Graphics, Sheffield, UK
• Bootstrap test error estimations of polynomial fittings in surface reconstruction.
  Ramli, A., & Ivrissimtzis, I. (2009, November). Bootstrap test error estimations of polynomial fittings in surface reconstruction. Presented at Vision Modeling and Visualization, VMV09., Braunschweig, Germany
• Distance Based Feature Detection on 3D Point Sets.
  Ahmad, R., & Ivrissimtzis, I. (2009, June). Distance Based Feature Detection on 3D Point Sets. Presented at 6th Theory and Practice of Computer Graphics Conference, Cardiff
• Multi-Colour Sketch Recognition in a Learning Environment
  Don, L., & Ivrissimtzis, I. (2008, July). Multi-Colour Sketch Recognition in a Learning Environment. Presented at International Workshop on Interactive Digital Entertainment Technologies., Lanzhou, China
• Self-Organising Maps for Implicit Surface Reconstruction
  Yoon, M., Ivrissimtzis, I., & Lee, S. (2008, June). Self-Organising Maps for Implicit Surface Reconstruction. Presented at 6th Theory and Practice of Computer Graphics, Manchester, UK
• Surface Reconstruction with Neural Meshes.
  Ivrissimtzis, I., Jeong, W.-K., Lee, S., Lee, Y. L., & Seidel, H.-P. (2005, May). Surface Reconstruction with Neural Meshes. Presented at Mathematical Methods for Curves and Surfaces., Tromsoe, Norway

Journal Article

• Hand gesture recognition for user-defined textual inputs and gestures
  Wang, J., Ivrissimtzis, I., Li, Z., & Shi, L. (online). Hand gesture recognition for user-defined textual inputs and gestures. Universal Access in the Information Society, https://doi.org/10.1007/s10209-024-01139-6
• Bivariate non-uniform subdivision schemes based on L-systems
  Gérot, C., & Ivrissimtzis, I. (2023). Bivariate non-uniform subdivision schemes based on L-systems. Applied Mathematics and Computation, 457, Article 128156. https://doi.org/10.1016/j.amc.2023.128156
• Big data for human security: The case of COVID-19
  Cárdenas, P., Ivrissimtzis, I., Obara, B., Kureshi, I., & Theodoropoulos, G. (2022). Big data for human security: The case of COVID-19. Journal of Computational Science, 60, Article 101574. https://doi.org/10.1016/j.jocs.2022.101574
• Early Fault Diagnostic System for Rolling Bearing Faults in Wind Turbines
  Xu, L., Wang, Q., Ivrissimtzis, I., & Li, S. (2022). Early Fault Diagnostic System for Rolling Bearing Faults in Wind Turbines. Journal of Nondestructive Evaluation, Diagnostics and Prognostics of Engineering Systems, 5(1), Article 011004. https://doi.org/10.1115/1.4051222
• From Farey fractions to the Klein quartic and beyond
  Ivrissimtzis, I., Singerman, D., & Strudwick, J. (2021). From Farey fractions to the Klein quartic and beyond. Ars mathematica contemporanea (Spletna izd.), 20(1), 37-50. https://doi.org/10.26493/1855-3974.2046.cb6
• Using theoretical ROC curves for analysing machine learning binary classifiers
  Omar, L., & Ivrissimtzis, I. (2019). Using theoretical ROC curves for analysing machine learning binary classifiers. Pattern Recognition Letters, 128, 447-451. https://doi.org/10.1016/j.patrec.2019.10.004
• Trivalent expanders, $(Delta – Y)$-transformation, and hyperbolic surfaces
  Ivrissimtzis, I., Peyerimhoff, N., & Vdovina, A. (2019). Trivalent expanders, $(Delta – Y)$-transformation, and hyperbolic surfaces. Groups, Geometry, and Dynamics, 13(3), 1103-1131. https://doi.org/10.4171/ggd/518
• Reevaluating Reconstruction Filters for Path-Searching Tasks in 3D
  Roberts, D., & Ivrissimtzis, I. (2017). Reevaluating Reconstruction Filters for Path-Searching Tasks in 3D. Computer Graphics Forum, 36(6), 291-302. https://doi.org/10.1111/cgf.12939
• A 3D Steganalytic Algorithm and Steganalysis-Resistant Watermarking
  Yang, Y., Pintus, R., Rushmeier, H., & Ivrissimtzis, I. (2017). A 3D Steganalytic Algorithm and Steganalysis-Resistant Watermarking. IEEE Transactions on Visualization and Computer Graphics, 23(2), 1002-2626. https://doi.org/10.1109/tvcg.2016.2525771
• Quality measures of reconstruction filters for stereoscopic volume rendering
  Roberts, D. A., & Ivrissimtzis, I. (2016). Quality measures of reconstruction filters for stereoscopic volume rendering. Computational Visual Media, 2(1), 19-30. https://doi.org/10.1007/s41095-016-0035-7
• Mesh Discriminative Features for 3D Steganalysis
  Yang, Y., & Ivrissimtzis, I. (2014). Mesh Discriminative Features for 3D Steganalysis. ACM Transactions on Multimedia Computing, Communications and Applications, 10(3), Article 27. https://doi.org/10.1145/2535555
• Spectral representations of vertex transitive graphs, Archimedean solids and finite Coxeter groups
  Ivrissimtzis, I., & Peyerimhoff, N. (2013). Spectral representations of vertex transitive graphs, Archimedean solids and finite Coxeter groups. Groups, Geometry, and Dynamics, 7(3), 591-615. https://doi.org/10.4171/ggd/199
• Linear Correlations between Spatial and Normal Noise in Triangle Meshes
  Yang, Y., Norbert, P., & Ivrissimtzis, I. (2013). Linear Correlations between Spatial and Normal Noise in Triangle Meshes. IEEE Transactions on Visualization and Computer Graphics, 19(1), 45-55. https://doi.org/10.1109/tvcg.2012.106
• Efficient construction of the Čech complex
  Dantchev, S., & Ivrissimtzis, I. (2012). Efficient construction of the Čech complex. Computers and Graphics, 36(6), 708-713. https://doi.org/10.1016/j.cag.2012.02.016
• Polygonal mesh watermarking using Laplacian coordinates
  Yang, Y., & Ivrissimtzis, I. (2010). Polygonal mesh watermarking using Laplacian coordinates. Computer Graphics Forum, 29(5), 1585-1593. https://doi.org/10.1111/j.1467-8659.2010.01767.x
• Curve subdivision with arc-length control.
  Hernandez-Mederos, V., Estrada-Sarlabous, J., Morales, S., & Ivrissimtzis, I. (2009). Curve subdivision with arc-length control. Computing, 86(2-3), 151-169. https://doi.org/10.1007/s00607-009-0068-1
• Variational Bayesian noise estimation of point sets.
  Yoon, M., Ivrissimtzis, I., & Lee, S. (2009). Variational Bayesian noise estimation of point sets. Computers and Graphics, 33(3), 226 - 234. https://doi.org/10.1016/j.cag.2009.03.019
• Multi-pen Sketch Recognition in a Learning Environment.
  Don, L., & Ivrissimtzis, I. (2009). Multi-pen Sketch Recognition in a Learning Environment. Journal of multimedia, 4(2), 80-86. https://doi.org/10.4304/jmm.4.2.80-86
• Point Set Denoising using a Variational Bayesian Method
  Yoon, M., & Ivrissimtzis, I. (2008). Point Set Denoising using a Variational Bayesian Method. Jeongbo gwahaghoe nonmunji. keompyuting ui silje, 14(5), 527-531
• Surface and normal ensembles for surface reconstruction
  Yoon, M., Lee, Y., Lee, S., Ivrissimtzis, I., & Seidel, H.-P. (2007). Surface and normal ensembles for surface reconstruction. Computer-Aided Design, 39(5), 408-420. https://doi.org/10.1016/j.cad.2007.02.008
• Regular maps and principal congruence subgroups of Hecke groups.
  Ivrissimtzis, I., & Singerman, D. (2005). Regular maps and principal congruence subgroups of Hecke groups. European Journal of Combinatorics, 26(3-4), 437-356. https://doi.org/10.1016/j.ejc.2004.01.010
• On the support of recursive subdivision
  Ivrissimtzis, I., Sabin, M., & Dodgson, N. (2004). On the support of recursive subdivision. ACM Transactions on Graphics, 23(4), 1043-1060. https://doi.org/10.1145/1027411.1027417
• Evolutions of Polygons in the Study of Subdivision Surfaces
  Ivrissimtzis, I., & Seidel, H.-P. (2004). Evolutions of Polygons in the Study of Subdivision Surfaces. Computing, 72(1-2), 93-103. https://doi.org/10.1007/s00607-003-0049-8
• A generative classification of mesh refinement rules with lattice transformations
  Ivrissimtzis, I., Dodgson, N., & Sabin, M. (2004). A generative classification of mesh refinement rules with lattice transformations. Computer Aided Geometric Design, 21(1), 99-109. https://doi.org/10.1016/j.cagd.2003.08.001
• The refinability of the 4-point scheme.
  Ivrissimtzis, I., Dodgson, N., Hassan, M., & Sabin, M. (2002). The refinability of the 4-point scheme. Computer Aided Geometric Design, 19(4), 235-238
• An interpolating 4-point C2 ternary stationary subdivision scheme
  Hassan, M., Ivrissimtzis, I., Dodgson, N., & Sabin, M. (2002). An interpolating 4-point C2 ternary stationary subdivision scheme. Computer Aided Geometric Design, 19(1), 1-18. https://doi.org/10.1016/s0167-8396%2801%2900084-x