Publications (selected)
Book Chapters and Journals
2022
Seafloor-Invariant Caustics Removal from Underwater Imagery Panagiotis Agrafiotis, Konstantinos Karantzalos, Andreas Georgopoulos
2021
Learning from Synthetic Data: Enhancing Refraction Correction Accuracy for Airborne Image-Based Bathymetric Mapping of Shallow Coastal Waters Panagiotis Agrafiotis, Konstantinos Karantzalos, Andreas Georgopoulos, Dimitrios Skarlatos PFG (2021). https://doi.org/10.1007/s41064-021-00144-1 [article in publisher] [view-only article in publisher] [post-peer-review, pre-copyedit version in open access]
Needs and Gaps in Optical Underwater Technologies and Methods for the Investigation of Marine Animal Forest 3D-Structural Complexity Rossi, P., Ponti, M., Righi, S., Castagnetti, C., Simonini, R., Mancini, F., Agrafiotis, P., ... & Capra, A. Frontiers in Marine Science, 8, 171. [paper in OA]
2020
Correcting Image Refraction: Towards Accurate Aerial Image-Based Bathymetry Mapping in Shallow Waters Panagiotis Agrafiotis, Konstantinos Karantzalos, Andreas Georgopoulos, Dimitrios Skarlatos Remote Sens. 2020, 12, 322. [webpage] [paper in OA] [demo (TBA)]
Image-Based Underwater 3D Reconstruction for Cultural Heritage: From Image Collection to 3D. Critical Steps and Considerations Dimitrios Skarlatos and Panagiotis Agrafiotis(co-first authorship) Visual Computing for Cultural Heritage, pp. 141-158, Springer, Cham. [arXiv][paper]
2019
DepthLearn: Learning to Correct the Refraction on Point Clouds Derived from Aerial Imagery for Accurate Dense Shallow Water Bathymetry Based on SVMs-Fusion with LiDAR Point Clouds Panagiotis Agrafiotis, Dimitrios Skarlatos, Andreas Georgopoulos, Konstantinos Karantzalos Remote Sens. 2019, 11, 2225. [webpage] [paper in OA] [demo (TBA)]
2018
Guidelines for underwater image enhancement based on benchmarking of different methods Marino Mangeruga, Fabio Bruno, Marco Cozza, Panagiotis Agrafiotis and Dimitrios Skarlatos Remote Sens. 10, 1652, 2018 [paper in OA]
State of the art and applications in archaeological underwater 3D recording and mapping Fabio Menna, Panagiotis Agrafiotis, Andreas Georgopoulos Journal of Cultural Heritage, 33, 231-248, 2018 [paper]
A Novel Iterative Water Refraction Correction Algorithm for Use in Structure from Motion Photogrammetric Pipeline Dimitrios Skarlatos and Panagiotis Agrafiotis Journal of Marine Science and Engineering 6(3), 77, 2018 [paper in OA]
2017
Five-dimensional (5D) modelling of the holy aedicule of the church of the holy sepulchre through an innovative and interdisciplinary approach. Moropoulou, A., Georgopoulos, A., Korres, M., Bakolas, A., Labropoulos, K., Agrafiotis, P., ... & Pantazis, G. In Mixed Reality and Gamification for Cultural Heritage (pp. 247-270). Springer, Cham., 2017 [paper]
Conferences
2019
Shallow Water Bathymetry Mapping from UAV Imagery based on Machine Learning Panagiotis Agrafiotis, Dimitrios Skarlatos, Andreas Georgopoulos, Konstantinos Karantzalos Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLII-2/W10, 9-16, 2019.
2018
Underwater photogrammetry in very shallow waters: Main challenges and caustics effect removal Panagiotis Agrafiotis, Dimitrios Skarlatos, Timothy Forbes, Charalambos Poullis, Margarita Skamantzari, Andreas Georgopoulos Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLII-2, 15-22, 2018
Improving Marker-Based Tracking for Augmented Reality in Underwater Environments Jan Cejka, Marek Zuzi, Panagiotis Agrafiotis, Dimitrios Skarlatos, Fabio Bruno, Fotis Liarokapis Eurographics Workshop on Graphics and Cultural Heritage, 2018 [paper]
2017
The Effect of Underwater Imagery Radiometry on 3d Reconstruction and Orthoimagery P Agrafiotis, GI Drakonakis, A Georgopoulos, D Skarlatos Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLII-2/W3, 25-31, 2017 [paper in OA]
Human object detection using very low resolution thermal cameras for urban search and rescue Nikolaos Doulamis, Panagiotis Agrafiotis, George Athanasiou, Angelos Amditis Proceedings of the 10th International Conference on PErvasive Technologies Related to Assistive Environments, 2017 [paper]
3D modelling the invisible using ground penetrating radar Panagiotis Agrafiotis, K Lampropoulos, A Georgopoulos, A Moropoulou Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLII-2/W3, 33-37, 2017 [paper in OA]
2016
Project iMARECULTURE: advanced VR, iMmersive serious games and augmented REality as tools to raise awareness and access to European underwater CULTURal heritagE Dimitrios Skarlatos, Panagiotis Agrafiotis, Tibor Balogh, Fabio Bruno, Filipe Castro, B Davidde Petriaggi, Stella Demesticha, A Doulamis, Pierre Drap, Andreas Georgopoulos, F Kikillos, Phaedon Kyriakidis, Fotis Liarokapis, Charalambos Poullis, Selma Rizvic Euro-Mediterranean Conference, 2016 [paper]
Real Time Earthquake's Survivor Detection using a Miniaturized LWIR Camera Panagiotis Agrafiotis, Anastasios Doulamis, George Athanasiou, Angelos Amditis Proceedings of the 9th ACM International Conference on PErvasive Technologies Related to Assistive Environments, 2016 [paper]
2015
Camera constant in the case of two media photogrammetry Panagiotis Agrafiotis, Andreas Georgopoulos Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XL-5/W5, 1-6, 2015 [paper in OA]
Accurate 3D Scanning of Damaged Ancient Greek Inscriptions for Revealing Weathered Letters A. I. Papadaki, P. Agrafiotis, A. Georgopoulos, S. Prignitz Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XL-5/W4, 237-243, 2015 [paper in OA]
2012
Documentation of a submerged monument using improved two media techniques A Georgopoulos, P Agrafiotis 18th International Conference on Virtual Systems and Multimedia, IEEE, 2012 [paper]
Future Articles in related Press
2020
Bathymetry from UAV Imagery and Machine Learning. Improving Results with Refraction Corrections. Panagiotis Agrafiotis, Hydro International, 2020