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Mr. Nick Zioulis -
Publications

Journals

  1. K. Konstantoudakis, D. Breitgand, A. Doumanoglou, N. Zioulis, A. Weit, K. Christaki, P. Drakoulis, E. Christakis, D. Zarpalas, P. Daras, "Serverless streaming for emerging media: towards 5G network-driven cost optimization", Multimedia Tools &Applications, 81(9), pp 12211-12250, 2022. https://doi.org/10.1007/s11042-020-10219-7
  2. G. Albanis, N. Zioulis, A. Chatzitofis, A. Dimou, D. Zarpalas, P. Daras, "On End-To-End 6DoF Object Pose Estimation and Robustness to Object Scale",RESCIENCE C, 2021.
  3. A. Chatzitofis, L. Saroglou, P. Boutis, P. Drakoulis, N. Zioulis, S. Subramanyam, B. Kevelham, C. Charbonnier, P. Cesar, D. Zarpalas, S. Kollias, P. Daras, "HUMAN4D: A Human-Centric Multimodal Dataset for Motions & Immersive Media",IEEE Access, Volume 8, pp 176241-176262, 2020. DOI: https://doi.org/10.1109/ACCESS.2020.3026276
  4. N. Zioulis, F. Alvarez, D. Zarpalas, P. Daras, "Monocular Spherical Depth Estimation with Explicitly Connected Weak Layout Cues",ISPRS Journal of Photogrammetry and Remote Sensing, Volume 183, pp. 269-285, 2022. DOI: https://doi.org/10.1016/j.isprsjprs.2021.10.016
  5. R. F. Ustok, U. Acar, S. Keskin, D. Breitgand, A. Weit, P. Drakoulis, A. Doumanoglou, N. Zioulis, D. Zarpalas, P. Daras, F. Iadanza, "Service Development Kit for Media-Type Virtualized Network Services in 5G Networks", IEEE Communications Magazine, 58(7), pp. 51-57, 2020. DOI: https://doi.org/10.1109/MCOM.001.1900613
  6. R. Ustok, U. Acar, S. Keskin, D. Breitgand, A. Weit, P. Drakoulis, A. Doumanoglou, N. Zioulis, D. Zarpalas, P. Daras, F. Iadanza, "Service Development Kit for Media-Type Virtualized Network Services in 5G Networks", IEEE Communications Magazine, 58(7), pp. 51-57, 2020. DOI: https://doi.org/10.1109/MCOM.001.1900613
  7. N. Zioulis, G. Albanis, P. Drakoulis, F. Alvarez, D. Zarpalas, P. Daras, "Hybrid Skip: A Biologically Inspired Skip Connection for the UNet Architecture", IEEE Access, ΙΕΕΕ, pp.TBA.(2022). https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=9775970
  8. N. Zioulis, F. Alvarez, D. Zarpalas, P. Daras, "Monocular spherical depth estimation with explicitly connected weak layout cues", . ISPRS Journal of Photogrammetry and Remote Sensing, Elsevier, pp.269-285.(2022).
  9. N. Zioulis, F. Alvarez, D. Zarpalas, P. Daras, "Single-Shot Cuboids: Geodesics-based End-to-end Manhattan Aligned Layout Estimation from Spherical Panoramas",Image and Vision Computing, p.104160, 2021
  10. K. Konstantoudakis, D. Breitgand, A. Doumanoglou, N. Zioulis, A. Weit, K. Christaki, P. Drakoulis, E. Christakis, D. Zarpalas, P. Daras, "Serverless Streaming for Emerging Media: Towards 5G Network-driven Cost Optimization",Multimedia Tools and Applications, 2021. DOI: https://doi.org/10.1007/s11042-020-10219-7
  11. A. Chatzitofis, L. Saroglou, P. Boutis, P. Drakoulis, N. Zioulis, S. Subramanyam, B. Kevelham, C. Charbonnier, P. Cesar, D. Zarpalas, S. Kollias, P. Daras, "HUMAN4D: A Human-Centric Multimodal Dataset for Motions & Immersive Media", IEEE Access, Volume 8, pp 176241-176262, 2020. DOI: https://doi.org/10.1109/ACCESS.2020.3026276
  12. B. Takacs, Z. Vincze, H. Fassold, A. Karakottas, N. Zioulis, D. Zarpalas, P. Daras, "Hyper 360—Towards a Unified Tool Set Supporting Next Generation VR Film and TV Productions",Journal of Software Engineering and Applications (JSEA), Vol 12, Number 5, May 2019
  13. F. Alvarez, D. Breitgand, D. Griffin, P. Adriani, S. Rizou, N. Zioulis, F. Moscatelli, J. Serrano, M. Keltsch, P. Trakadas, T. Khoa Phan, A. Weit, U. Acar, O. Prieto, F. Iadanza, G. Carrozzo, H. Koumaras, D. Zarpalas, D. Jimenez, "An Edge-to-Cloud Virtualized Multimedia Service Platform for 5G Networks",IEEE Transactions on Broadcasting, Special issue on 5G for Broadband Multimedia Systems and Broadcasting, 2019.
  14. A. Doumanoglou, P. Drakoulis, N. Zioulis, D. Zarpalas, P. Daras, "Benchmarking Open-Source Static 3D Mesh Codecs for Immersive Media Interactive Live Streaming",IEEE Journal on Emerging and Selected Topics in Circuits and Systems, Feb 2019, DOI: https://doi.org/10.1109/JETCAS.2019.2898768
  15. A. Doumanoglou, D. Griffin, J. Serrano, N. Zioulis, T.K. Phan, D. Jimenez, D. Zarpalas, F. Alvarez, M. Rio, P. Daras, "Quality of Experience for 3D Immersive Media Streaming",IEEE Transactions on Broadcasting, Special Issue on Quality of Experience for Advanced Broadcast Service, Volume: 64, Issue: 2, pp 379-391, June 2018.
  16. D. Alexiadis, N. Zioulis, D. Zarpalas, P. Daras, "Fast deformable model-based human performance capture and FVV using consumer-grade RGB-D sensors",ELSEVIER, Pattern Recognition, Volume 79, Pages 260-278, July 2018
  17. D. Alexiadis, A. Chatzitofis, N. Zioulis, O. Zoidi, G. Louizis, D. Zarpalas, P. Daras, "An integrated platform for live 3D human reconstruction and motion capturing",IEEE Transactions on Circuits and Systems for Video Technology, 27(4), 798 – 813, April 2017

Conference

  1. G. Albanis, N. Zioulis, P. Drakoulis, F. Alvarez, D. Zarpalas, P. Daras, "A Benchmark with Decomposed Distribution Shifts for 360 Monocular Depth Estimation",in Conference on Neural Information Processing Systems, 2021.
  2. H. Yuan, R. Veltkamp, G. Albanis, N. Zioulis, D. Zarpalas, P. Daras, "SHREC 2020 Track: 6D Object Pose Estimation",in Eurographics Workshop on 3D Object Retrieval, 2020. DOI: https://doi.org/10.2312/3dor.20201164
  3. K. Konstantoudakis, G. Albanis, E. Christakis, N. Zioulis, A. Dimou, D. Zarpalas, P. Daras, "Single-handed Gesture UAV Control for First Responders – A Usability and Performance User Study",in International Conference on Information Systems for Crisis Response and Management (ISCRAM), 2020.
  4. R. Whitehand, G. Albanis, N. Zioulis, W. Bailer, D. Zarpalas, P. Daras, "Towards User Generated AR Experiences: Enable consumers to generate their own AR experiences for planning indoor spaces.", IMX 2021: ACM International Conference on Interactive Media Experiences, Virtual. https://dl.acm.org/doi/pdf/10.1145/3452918.3465495
  5. G. Albanis, V. Gkitsas, N. Zioulis, S. Onsori-Wechtitsch, R. Whitehand, P. Ström, D. Zarpalas, "An AI-based system offering automatic DR-enhanced AR for indoor scenes.",International Conference on Artificial Intelligence and Virtual Reality (AIVR) 2022, Virtual.
  6. V. Gkitsas, N. Zioulis, V. Sterzentsenko, A. Doumanoglou, D. Zarpalas, "Towards Full-to-Empty Room Generation with Structure-Aware Feature Encoding and Soft Semantic Region-Adaptive Normalization.", VISIGRAPP 2021: International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications., Virtual. https://arxiv.org/pdf/2112.05396.pdf
  7. A. Doumanoglou, N. Zioulis, V. Sterzentsenko, A. Karakottas, D. Zarpalas, P. Daras, "Benchmarking Gradient-Free Optimizers for 3D Performance Capture in the Nevergrad Platform", in Genetic and Evolutionary Computation Conference, July 10-14, 2021.
  8. A. Doumanoglou, P. Drakoulis, K. Christaki, N. Zioulis, V. Sterzentsenko, A. Karakottas, D. Zarpalas, P. Daras, "Zeroth-Order Optimizer Benchmarking for 3D Performance Capture",in Genetic and Evolutionary Computation Conference, July 10-14, 2021.
  9. G. Albanis, N. Zioulis, P. Drakoulis, V. Gkitsas, V. Sterzentsenko, F. Alvarez, D. Zarpalas, P. Daras, "Pano3D: A Holistic Benchmark and a Solid Baseline for 360 Depth Estimation",in IEEE Conference on Computer Vision and Pattern Recognition Workshops (CVPRW), June, 2021.
  10. V. Gkitsas, V. Sterzentsenko, N. Zioulis, G. Albanis, D. Zarpalas, "PanoDR: Spherical Panorama Diminished Reality for Indoor Scenes",in IEEE Conference on Computer Vision and Pattern Recognition Workshops (CVPRW), June, 2021.
  11. E. Zell, F. Castan, S. Gasparini, A. Hilsmann, M. Kazhdan, A. Tagliasacchi, D. Zarpalas, N. Zioulis, "Volumetric Video - Acquisition, Compression, Interaction and Perception.",Eurographics 2021, Virtual. https://doi.org/10.2312/egt.20211035
  12. G. Albanis, N. Zioulis, A. Dimou, D. Zarpalas, P. Daras, "DronePose: Photorealistic UAV-Assistant Dataset Synthesis for 3D Pose Estimation via a Smooth Silhouette Loss",in European Conference on Computer Vision Workshops (ECCVW), Glasgow, UK, August 23-28, 2020.
  13. V. Gkitsas, N. Zioulis, F. Alvarez, D. Zarpalas, P. Daras, "Deep Lighting Environment Map Estimation from Spherical Panoramas",In 2020 Conference on Computer Vision and Pattern Recognition (CVPR). IEEE, June 2020.
  14. A. Karakottas, N. Zioulis, A. Doumanglou, V. Sterzentsenko, V. Gkitsas, D. Zarpalas, P. Daras, "XR360: A toolkit for mixed 360 and 3D productions",In IEEE International Conference on Multimedia and Expo (ICME) June 2020.
  15. V. Sterzentsenko, A. Doumanoglou, S. Thermos, N. Zioulis, D. Zarpalas, P. Daras, "Deep Soft Procrustes for Markerless Volumetric Sensor Alignment",In 2020 International Conference on Virtual Reality (IEEE VR), March 2020.
  16. R. Athanasoulas, P. Boutis, A. Chatzitofis, A. Doumanoglou, P. Drakoulis, L. Saroglou, V. Sterzentsenko, N. Zioulis, D. Zarpalas, P. Daras, "AVoidX: An Augmented VR Game",In 2020 International Conference on Virtual Reality (IEEE VR), March 2020.
  17. P. Athanasoulis, E. Christakis, K. Konstantoudakis, P. Drakoulis, S. Rizou, A. Weitz, A. Doumanoglou, N. Zioulis, D. Zarpalas, "Optimizing QoE and Cost in a 3D Immersive Media Platform: A Reinforcement Learning Approach",In International Conference on Advances in Multimedia (MMEDIA), Februrary 2020.
  18. V. Sterzentsenko, L. Saroglou, A. Chatzitofis, S. Thermos, N. Zioulis, A. Doumanoglou, D. Zarpalas, P. Daras, "Self-Supervised Deep Depth Denoising",In Proceedings of the IEEE International Conference on Computer Vision, 2019 (pp. 1242-1251)
  19. N. Zioulis, A. Karakottas, D. Zarpalas, F. Alvarez, P. Daras, "Spherical View Synthesis for 360o Self-Supervised Depth Estimation",The 7th International Conference on 3D Vision (3DV), Quebec City, Canada, 16-19 September 2019
  20. A. Karakottas, N. Zioulis, S. Samaras, D. Ataloglou, V. Gkitsas, D. Zarpalas, P. Daras, "360o Surface Regression with a Hyper-Sphere Loss",The 7th International Conference on 3D Vision (3DV), Quebec City, Canada, 16-19 September 2019
  21. K. Christaki, K. Apostolakis, A. Doumanoglou, N. Zioulis, D. Zarpalas, P. Daras, "Space Wars: An AugmentedVR Game",25th International Conference on MultiMedia Modeling (MMM), Thessaloniki, Greece, January 8-11, 2019.
  22. K. Christaki, E. Christakis, P. Drakoulis, A. Doumanoglou, N. Zioulis, D. Zarpalas, P. Daras, "Subjective Visual Quality Assessment of Immersive 3D Media Compressed by Open-Source Static 3D Mesh Codecs",25th International Conference on MultiMedia Modeling (MMM), Thessaloniki, Greece, January 8-11, 2019.
  23. V. Sterzentsenko, A. Karakottas, A. Papachristou, N. Zioulis, A. Doumanoglou, D. Zarpalas, P. Daras, "A low-cost, flexible and portable volumetric capturing system",The 14th International Conference on Signal Image Technology & Internet based Systems (SITIS 2018), Las Palmas de Gran Canaria, Spain, 26-29 November 2018.
  24. K. Konstantoudakis, E. Christakis, P. Drakoulis, A. Doumanoglou, N. Zioulis, D. Zarpalas, P. Daras, "Comparing CNNs and JPEG for Real-Time Multi-view Streaming in Tele-Immersive Scenarios",The 14th International Conference on Signal Image Technology & Internet based Systems (SITIS 2018), Las Palmas de Gran Canaria, Spain, 26-29 November 2018.
  25. N. Zioulis, A. Karakottas, D. Zarpalas, P. Daras, "OmniDepth: Dense Depth Estimation for Indoors Spherical Panoramas",European Conference on Computer Vision (ECCV), Munich, Germany, 8 – 14 September 2018
  26. A. Karakottas, N. Zioulis, D. Zarpalas, P. Daras, "360D: A dataset and baseline for dense depth estimation from 360 images",1st Workshop on 360o Perception and Interaction, European Conference on Computer Vision (ECCV) , Munich, Germany, 8 – 14 September 2018
  27. A. Doumanoglou, N. Zioulis, D. Griffin, J. Serrano, T. Khoa Phan, D. Jimenez, D. Zarpalas, F. Alvarez, M. Rio, P. Daras, "A System Architecture for Live Immersive 3D-Media Transcoding over 5G Networks", Workshop on Media delivery innovations using flexible network models in 5G, IEEE International Symposium on Broadband Multimedia Systems and Broadcasting (BMSB18), Valencia, Spain, 6th – 8th June 2018
  28. A. Doumanoglou, N. Zioulis, E. Christakis, D. Zarpalas, P. Daras, "Subjective quality assessment of textured human full-body 3D-reconstructions", International Conference on Quality of Multimedia Experience (QoMEX 2018), Sardinia, Italy, 29 May - 1 June 2018
  29. A. Papachristou, N. Zioulis, D. Zarpalas, P. Daras, "Markerless Structure-based Multi-sensor Calibration for Free Viewpoint Video Capture",the 26th International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision (WSCG 2018), Pilsen, Czech Republic, May 28 - June 1, 2018
  30. A. Karakottas, A. Papachristou, A. Doumanoglou, N. Zioulis, D. Zarpalas, P. Daras, "Augmented VR",IEEE VR, Reutlingen, Germany, 18-22 March 2018, https://www.youtube.com/watch?v=7O_TrhtmP5Q
  31. N. Zioulis, A. Papachristou, D. Zarpalas, P. Daras, "Improving Camera Pose Estimation via Temporal EWA Surfel Splatting",IEEE International Symposium on Mixed and Augmented Reality (ISMAR 2017), Nantes, France, October 9–13, 2017
  32. N. Zioulis, D. Alexiadis, A. Doumanoglou, G. Louizis, K. Apostolakis, D. Zarpalas, P. Daras, "3D Tele-Immersion Platform For Interactive Immersive Experiences Between Remote Users",IEEE International Conference on Image Processing, ICIP 2016, Sept 25-28, Phoenix, Arizona, USA
  33. F. Destelle, A. Ahmadi, K. Moran, N. E. O'Connor, N. Zioulis, A. Chatzitofis, D. Zarpalas, P. Daras, L. Unzueta, J. Goenetxea, M. Rodriguez, M. T. Linaza, Y. Tisserand, N. Magnenat-Thalmann, "A Multi-Modal 3D Capturing Platform for Learning and Preservation of Traditional Sports and Games",23rd ACM Multimedia Conference 2015, 26-30 Oct 2015, Brisbane, Australia

Books Chapters

  1. K. Apostolakis, N. Zioulis, A. Doumanoglou, D. Alexiadis, D. Zarpalas, P. Daras, "Beyond Online Multiplayer: Sharing and augmenting Tele-Immersive 3D game experiences with multiple geographically distributed users",IEEE COMSOC MMTC Communications – Frontiers, Vol. 12, No. 1, January 2017
  2. Y. Tisserand, N. Magnenat-Thalmann, L. Unzueta, M.T. Linaza, A. Ahmadi, N.E. O'Connor, N. Zioulis, D. Zarpalas, P. Daras, "Preservation and Gamification of Traditional Sports.",Mixed Reality and Gamification for Cultural Heritage, Springer-Nature, M Ioannides, N. Magnenat-Thalmann, G. Papagiannakis (Eds), ISBN 978-3-319-49607-8, DOI 10.1007/978-3-319-49607-8, 2016.
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