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 (pp. 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. (pp. 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). A multiscale optimisation algorithm for shape and material reconstruction from a single X-ray image. In ICIGP ’24: Proceedings of the 2024 7th International Conference on Image and Graphics Processing (pp. 252-259). ACM. https://doi.org/10.1145/3647649.3647690
• Anomaly Detection with Transformers in Face Anti-spoofing
  
  Abduh, L., Omar, L., & Ivrissimtzis, I. (2023). 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. https://doi.org/10.24132/JWSCG.2023.10
• Exploring the Potential of Immersive Virtual Environments for Learning American Sign Language
  
  Wang, J., Ivrissimtzis, I., Li, Z., Zhou, Y., & Shi, L. (2023). Exploring the Potential of Immersive Virtual Environments for Learning American Sign Language. In Responsive and Sustainable Educational Futures: 18th European Conference on Technology Enhanced Learning, EC-TEL 2023, Aveiro, Portugal, September 4–8, 2023, Proceedings (pp. 459-474). Springer Verlag. https://doi.org/10.1007/978-3-031-42682-7_31
• Developing and Evaluating a Novel Gamified Virtual Learning Environment for ASL
  
  Wang, J., Ivrissimtzis, I., Li, Z., Zhou, Y., & Shi, L. (2023). Developing and Evaluating a Novel Gamified Virtual Learning Environment for ASL. In Human-Computer Interaction – INTERACT 2023: 19th IFIP TC13 International Conference, York, UK, August 28 – September 1, 2023, Proceedings, Part I (pp. 459-468). Springer Verlag. https://doi.org/10.1007/978-3-031-42280-5_29
• Race Bias Analysis of Bona Fide Errors in Face Anti-spoofing
  
  Abduh, L., & Ivrissimtzis, I. (2023). Race Bias Analysis of Bona Fide Errors in Face Anti-spoofing. In CAIP 2023: Computer Analysis of Images and Patterns (pp. 23-32). Springer. https://doi.org/10.1007/978-3-031-44240-7_3
• Quality perception and discrimination thresholds in quantised triangle meshes
  
  Almutairi, A., Saarela, T., & Ivrissimtzis, I. (2021). Quality perception and discrimination thresholds in quantised triangle meshes. Presented at Sixth International Workshop on Pattern Recognition, Beijing, China. https://doi.org/10.1117/12.2604720
• Colour Processing in Adversarial Attacks on Face Liveness Systems
  
  Abduh, L., & Ivrissimtzis, I. (2019). Colour Processing in Adversarial Attacks on Face Liveness Systems. In F. P. Vidal, G. K. L. Tam, & J. C. Roberts (Eds.), Proceedings of Computer Graphics and Visual Computing 2019 (CGVC). (pp. 149-152). The Eurographics Association. https://doi.org/10.2312/cgvc.20191272
• A Perceptual Difference Scaling Study on Quantized 3D Models
  
  Almutairi, A., Saarela, T., & Ivrissimtzis, I. (2018). A Perceptual Difference Scaling Study on Quantized 3D Models [Conference 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). Single Image Watermark Retrieval from 3D Printed Surfaces via Convolutional Neural Networks. In G. Tam & F. Vidal (Eds.), Computer Graphics & Visual Computing (CGVC) 2018 : Eurographics UK Chapter proceedings. (pp. 117-120). Eurographics Association. https://doi.org/10.2312/cgvc.20182019
• Order-randomized Laplacian mesh smoothing
  
  Yang, Y., Rushmeier, H., & Ivrissimtzis, I. (2017). Order-randomized Laplacian mesh smoothing. In M. S. Floater, T. Lyche, M. Mazure, K. Mørken, & L. L. Schumaker (Eds.), Mathematical methods for curves and surfaces : 9th International Conference, MMCS 2016, Tønsberg, Norway, June 23 - June 28, 2016. Revised selected papers. (pp. 312-323). Springer Verlag. https://doi.org/10.1007/978-3-319-67885-6_17
• A user study on quantisation thresholds of triangle meshes
  
  Almutairi, A., Saarela, T., & Ivrissimtzis, I. (2017). A user study on quantisation thresholds of triangle meshes. In T. R. Wan & F. Vidal (Eds.), Computer Graphics & Visual Computing (CGVC) 2017. Eurographics UK Chapter Proceedings, anchester Metropolitan University, United Kingdom, 14 – 15 September 2017. The Eurographics Association. https://doi.org/10.2312/cgvc.20171283
• Designing a facial spoofing database for processed image attacks
  
  Omar, L., & Ivrissimtzis, I. (2016). Designing a facial spoofing database for processed image attacks. In 7th International Conference on Imaging for Crime Detection and Prevention (ICDP 2016) : Madrid, Spain, 23-25 November 2016 ; proceedings. IET. https://doi.org/10.1049/ic.2016.0073
• Resilience of Luminance based Liveness Tests under Attacks with Processed Imposter Images
  
  Omar, L., & Ivrissimtzis, I. (2016). Resilience of Luminance based Liveness Tests under Attacks with Processed Imposter Images. In V. Skala (Ed.), Computer Science Research Notes (pp. 79-82). WSCG.
• Evaluating the Resilience of Face Recognition Systems Against Malicious Attacks
  
  Omar, L., & Ivrissimtzis, I. (2015). Evaluating the Resilience of Face Recognition Systems Against Malicious Attacks. In X. Xie, M. W. Jones, & G. K. L. Tam (Eds.), Proceedings of the 7th UK Computer Vision Student Workshop (BMVW). (pp. 5.1-5.9). BMVA Press. https://doi.org/10.5244/c.29.bmvw.5
• Mesh Alignment using Grid based PCA
  
  Kaye, D., & Ivrissimtzis, I. (2015). Mesh Alignment using Grid based PCA. In J. Braz, J. Pettré, & P. Richard (Eds.), Proceedings of the 10th International Conference on Computer Graphics Theory and Applications (VISIGRAPP 2015) : Berlin, Germany, 11-14 March 2015. (pp. 174-181). SciTePress. https://doi.org/10.5220/0005313801740181
• A steganalytic algorithm for 3D polygonal meshes
  
  Yang, Y., Pintus, R., Rushmeier, H., & Ivrissimtzis, I. (2014). A steganalytic algorithm for 3D polygonal meshes. In ICIP 2014 : 2014 IEEE International Conference on Image Processing (ICIP). (pp. 4782-4786). Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/icip.2014.7025969
• An evaluation of reconstruction filters for a path-searching task in 3D
  
  Roberts, D., Ivrissimtzis, I., & Holliman, N. (2014). An evaluation of reconstruction filters for a path-searching task in 3D. In 2014 Sixth International Workshop on Quality of Multimedia Experience (QoMEX 2014) : Singapore, 18-20 September 2014. (pp. 165-170). Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/qomex.2014.6982314
• A Geometric Approach for the Computation of Principal Directions in Point Sets
  
  Ivrissimtzis, I. (2014). A Geometric Approach for the Computation of Principal Directions in Point Sets. In R. Borgo & W. Tang (Eds.), Computer Graphics & Visual Computing (CGVC) 2014 : University of Leeds, Leeds, United Kingdom 10 – 11 September 2014 ; proceedings. Eurographics Association. https://doi.org/10.2312/cgvc.20141210
• Model selection for the Dubuc-Deslauriers family of subdivision schemes
  
  Mustafa, G., & Ivrissimtzis, I. (2013). Model selection for the Dubuc-Deslauriers family of subdivision schemes. In R. J. Cripps, G. Mullineux, & M. A. Sabin (Eds.), Mathematics of surfaces - XIV. The proceedings of a conference on the Mathematics of Surfaces, organised by the Institute of Mathematics and its Applications held at the University of Birmingham in September 2013. (pp. 155-162). Institute of Mathematics and its Applications.
• Effects of Noise on Quantized Triangle Meshes
  
  Ivrissimtzis, I. (2010). Effects of Noise on Quantized Triangle Meshes. In M. Dahlen, M. Floater, T. Lyche, J. Merrien, K. Morken, & L. Schumaker (Eds.), Mathematical methods for curves and surfaces : 7th International Conference, MMCS 2008, 26 June - 1 July, 2008, Tønsberg, Norway ; revised selected papers. (pp. 274-284). Springer Verlag. https://doi.org/10.1007/978-3-642-11620-9_18
• Implicit surface reconstruction and feature detection with a learning algorithm
  
  Kaye, D., & Ivrissimtzis, I. (2010). Implicit surface reconstruction and feature detection with a learning algorithm (J. Collomosse & I. Grimstead, Eds.). European Association for Computer Graphics.
• Bootstrap test error estimations of polynomial fittings in surface reconstruction.
  
  Ramli, A., & Ivrissimtzis, I. (2009). Bootstrap test error estimations of polynomial fittings in surface reconstruction. In M. Magnor, B. Rosenhahn, & H. Theisel (Eds.), Proceedings of the Vision, Modeling, and Visualization Workshop 2009: November 16 - 18, 2009, Braunschweig, Germany (pp. 101-109). Institut für Simulation und Graphik.
• Distance Based Feature Detection on 3D Point Sets.
  
  Ahmad, R., & Ivrissimtzis, I. (2009). Distance Based Feature Detection on 3D Point Sets. In W. Tang & J. Collomosse (Eds.), Theory and practice of computer graphics 2009: Eurographics UK Chapter proceedings ; Cardiff University, United Kingdom, 17th to 19th June 2009; [papers presented at the 6th Theory and Practice of Computer Graphics Conference (TP.CG.09)] (pp. 53-56). Switzerland Eurographics Association.
• Multi-Colour Sketch Recognition in a Learning Environment
  
  Don, L., & Ivrissimtzis, I. (2008). Multi-Colour Sketch Recognition in a Learning Environment. In L. Li, T. Shih, Q. L. Li, S. Yang, & Q. Zhou (Eds.), 1st IEEE International Conference on Ubi-Media Computing, 15-16 July 2008, Lanzhou, China ; proceedings. (pp. 441-443). Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/umedia.2008.4570932
• Self-Organising Maps for Implicit Surface Reconstruction
  
  Yoon, M., Ivrissimtzis, I., & Lee, S. (2008). Self-Organising Maps for Implicit Surface Reconstruction (I. S. Lim & W. Tang, Eds.). European Association for Computer Graphics.
• Surface Reconstruction with Neural Meshes.
  
  Ivrissimtzis, I., Jeong, W., Lee, S., Lee, Y. L., & Seidel, H. (2005). Surface Reconstruction with Neural Meshes (M. Daehlen, K. Morken, & L. Schumaker, Eds.). Nashboro Press.

Journal Article

• Hand gesture recognition for user-defined textual inputs and gestures
  
  Wang, J., Ivrissimtzis, I., Li, Z., & Shi, L. (2025). Hand gesture recognition for user-defined textual inputs and gestures. Universal Access in the Information Society, 24, 1315–1329. 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, 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 & 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. 정보과학회논문지 : 컴퓨팅의 실제, 14(5), 527-531.
• Surface and normal ensembles for surface reconstruction
  
  Yoon, M., Lee, Y., Lee, S., Ivrissimtzis, I., & Seidel, H. (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. (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