Modern mapping and remote sensing integrates themes from navigation, geodesy, photogrammetry, computer vision, machine learning and system control. This field is truly interdisciplinary both in the conception and operation of mobile mapping platforms, as well as in the calibration of their sensors and data processing. We study and develop new concepts of sensor calibration, quality control and data adjustment which are tested on platforms developed especially for this purpose. Together with the platforms we study and develop bespoke 3D reconstruction, digitalisation and analysis algorithms.
Our most resent interests are related to the area of fusion of novel LIDAR (Single-photon avalanche diode – SPAD) and RGB camera sensors for 3D digitalisation and mapping. We study the optimal fusion of classical 3D reconstruction algorithms such as photogrammetry with most resent developments in Machine Learning vision and data processing algorithms.
Particular focus is given to the following areas:
- Calibration and integration of active and passive optical sensors
- Sensor synchronisation and data acquisition
- Development of 3D reconstruction algorithms
- Composition of light-weight mapping systems and platforms (e.g.
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Airborne sensor fusion: Expected accuracy and behavior of a concurrent adjustment
ISPRS Open Journal of Photogrammetry and Remote Sensing. 2024-02-22. Vol. 12, num. April, p. 100057. DOI : 10.1016/j.ophoto.2023.100057.Methods of trajectory estimation in challenging mapping scenarios
IUGG General Assembly of the International Union of Geodesy and Geophysics, Berlin, Germany, July 11-20, 2023.Model-based constraints for trajectory determination of quad-copters: Design, calibration & merits for direct orientation
ISPRS Open Journal of Photogrammetry and Remote Sensing. 2023-01-24. Vol. 7, num. January, p. 100030. DOI : 10.1016/j.ophoto.2023.100030.On the benefit of concurrent adjustment of active and passive optical sensors with GNSS & raw inertial data
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences. 2022-06-02. Vol. V-1-2022, p. 161-168. DOI : 10.5194/isprs-annals-V-1-2022-161-2022.Lidar point-to-point correspondences for rigorous registration of kinematic scanning in dynamic networks
ISPRS Journal of Photogrammetry and Remote Sensing. 2022-05-19. Vol. 189, p. 185-200. DOI : 10.1016/j.isprsjprs.2022.04.027.Airborne and mobile LiDAR, which sensors for which application?
2020-08-11. XXIVth ISPRS Congress, Online, August 6, 2020. p. 397–405. DOI : 10.5194/isprs-archives-XLIII-B1-2020-397-2020.Fusion of Photo with Airborne Laser Scanning
2020. XXIV ISPRS Congress (2020 edition), [Virtual event], August 31 – September 2, 2020. p. 173-180. DOI : 10.5194/isprs-annals-V-1-2020-173-2020.Mapping quality prediction for RTK/PPK-equipped micro-drones operating in complex natural environment
ISPRS Journal of Photogrammetry and Remote Sensing. 2020. Vol. 167, p. 24-38. DOI : 10.1016/j.isprsjprs.2020.05.015.Camera Calibration Models and Methods for Corridor Mapping with UAVs
2020. International Society for Photogrammetry and Remote Sensing, Virtual, Septembre 1-2, 2020. p. 231-238. DOI : 10.5194/isprs-annals-V-1-2020-231-2020.Bundle adjustment with raw inertial observations
ISPRS Journal of Photogrammetry and Remote Sensing. 2017-05-23. Vol. 130, p. 1-12. DOI : 10.1016/j.isprsjprs.2017.05.008.Mapping GNSS Restricted Environment with a Drone Tandem and Indirect Position Control
2017. International Conference on Unmanned Aerial Vehicles in Geomatics, Bonn, Germany, September 4–7, 2017. p. 1-7. DOI : 10.5194/isprs-annals-IV-2-W3-1-2017.Performance assessment of integrated sensor orientation with a low-cost GNSS receiver
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences. 2017. Vol. 4, num. 2W3, p. 75-80. DOI : 10.5194/isprs-annals-IV-2-W3-75-2017.Time synchronization of consumer cameras on Micro Aerial Vehicles
Isprs Journal of Photogrammetry and Remote Sensing. 2017. Vol. 123, num. 1, p. 114-123. DOI : 10.1016/j.isprsjprs.2016.11.009.Accurate Optical Target Pose Determination For Applications In Aerial Photogrammetry
ISPRS Annals of Photogrammetry, Remote Sensing and Spatial Information Sciences. 2016. Vol. 3, p. 257-262. DOI : 10.5194/isprs-annals-III-3-257-2016.UAV Sensor Orientation with Pre-calibrated Redundant IMU/GNSS Observations: Preliminary Results
36te Dreiländertagung Photogrammetrie and Fernerkundung der SGPF, DGPF und OVG, Bern, June 7-9, 2016.UAV Sensor Orientation with Pre-calibrated Redundant IMU/GNSS Observations: Preliminary Results
2016. 36te Dreiländertagung Photogrammetrie and Fernerkundung der SGPF, DGPF und OVG, Bern, Switzerland, June 7-9, 2016. p. 26-33.Detection of crop properties by means of hyperspectral remote sensing from a micro UAV
2015. 20. und 21. Workshop Computer-Bildanalyse in der Landwirtschaft – 3. Workshop Unbemannte autonom fliegende Systeme (UAS) in der Landwirtschaft, Braunschweig, Germany, May 7, 2015. p. 129-137.Drohne für ein hoch genaues Korridor-Mapping
AHORN 2015 – der Alpenraum und seine Herausforderungen im Bereich Orientierung, Navigation und Informationsaustausch, Wildhaus, November 26-27,2015.Photogrammetric Mission Planner for RPAS
2015. UAV-g, Toronto, Canada, August 30-September 2, 2015. p. 61-65. DOI : 10.5194/isprsarchives-XL-1-W4-61-2015.Fixed-wing Micro Aerial Vehicle for Accurate Corridor Mapping
2015. UAV-g, Toronto, Canada, August 30-September 2, 2015. p. 23-31. DOI : 10.5194/isprsannals-II-1-W1-23-2015.Prediction of phase ambiguity resolution based on signal intensity and geometry
Gps Solutions. 2015. Vol. 19, num. 3, p. 467-474. DOI : 10.1007/s10291-014-0406-4.Ein Mikroflugzeug zur genauen Kartierung ohne Passpunkte am Boden
Géomatique Suisse. 2014. num. 9, p. 376-380. DOI : 10.5169/seals-389509.A Micro Aerial Vehicle with Precise Position and Attitude Sensors
Photogrammetrie, Fernerkundung, Geoinformation (PFG). 2014. Vol. 4, p. 0239-0251. DOI : 10.1127/1432-8364/2014/0220.Sensor Orientation on Micro Aerial Vehicles
Swiss GEOSummit meeting, Workshop “Facts & Trends: Nutzung von Drohnen in der Schweiz, Bern, Switzerland, June 6, 2014.Mapping with MAV: Experimental Study on the Contribution of Absolute and Relative Aerial Position Control
2014. European Calibration and Orientation Workshop, Castelldefels, Spain, February 12-14, 2014. p. 123-129.Spatial extent and ecotoxicological risk assessment of a micropollutant-contaminated wastewater plume in Lake Geneva
Aquatic Sciences. 2014. Vol. 76, num. 1, p. 7-19. DOI : 10.1007/s00027-013-0315-6.A micro-UAV with the capability of direct georeferencing
Fall Meeting of The Swiss Society of Photogrammetry and Remote Sensing (SSPT), EPFL, Lausanne, Switzerland, November 28, 2013.Challenges & solutions in sensor orientation
Fall Meeting of The Swiss Society of Photogrammetry and Remote Sensing (SSPT), EPFL, Lausanne, Switzerland, November 28, 2013.A Micro-Uav with the Capability of Direct Georeferencing
2013. UAV-g, Rostock, Germany, September 4-6, 2013. p. 317-323. DOI : 10.5194/isprsarchives-XL-1-W2-317-2013.SamBada in Uganda: landscape genomics study of traditional cattle breeds with a large SNP dataset
2013. The IALE 2013 European Congress, Manchester, UK, September 9-12, 2013.Soil Moisture & Snow Properties Determination with GNSS in Alpine Environments: Challenges, Status, and Perspectives
Remote Sensing. 2013. Vol. 5, num. 7, p. 3516-3543. DOI : 10.3390/rs5073516.Morphology of pillow-hollow and quilted-cover bedforms in Lake Geneva, Switzerland
2013. Marine and River Dune Dynamics – MARID IV, Bruges, Belgium, 15 – 16 April 2013. p. 159-166.Automated approach for rigorous light detection and ranging system calibration without preprocessing and strict terrain coverage requirements
Optical Engineering. 2012. Vol. 51, num. 7, p. 076201-1-19. DOI : 10.1117/1.Oe.51.7.076201.SEARCHING LOST PEOPLE WITH UAVS: THE SYSTEM AND RESULTS OF THE CLOSE-SEARCH PROJECT
2012. XXII Congress of the International Society for Photogrammetry and Remote Sensing, , Melbourne, Australia, August 25 – September 1, 2012. p. 441-446.Drones to the Rescue!
Inside GNSS. 2012. Vol. July/August.Collaborative Web-GIS platform for systematic exploration of Lake Geneva
2012. XXII Congress of the International Society for Photogrammetry and Remote Sensing, Melbourne, Australia, August 25 – September 1, 2012. p. 1-6.Cell-based Automatic Deformation Computation by Analyzing Terrestrial LIDAR Point Clouds
Photogrammetric Engineering and Remote Sensing. 2012. Vol. 78, num. 4, p. 317-329. DOI : 10.14358/PERS.78.4.317.Data Capture and Geosensor Networks
Springer Handbook of Geographic Information; Springer, 2012. p. 8.1-8.88.MAV-based real-time localisation of terrestrial targets with cm-level accuracy: Feasibility study
2011. UAV-g 2011 – Unmanned Aerial Vehicle in Geomatics, Zurich, Switzerland, September 14-16, 2011.Optimiser la performance de calcul pour la cartographie en temps réel avec un Laser Scanner aéroporté
Géomatique Suisse. 2011. num. 6, p. 284-289. DOI : 10.5169/seals-236796.An Integrated Methodology for Change Detection via Terrestrial Laserscanning: Case Study of the Landslide in Flamatt
2010. 8th Swiss Geoscience Meeting, Fribourg, Switzerland, November 19-20, 2010.A Split/Merge Approach for Change Detection via Terrestrial LIDAR
2010. Workshop on Remote Sensing Methods for Change Detection and Process Modeling, Cologne, Cologne, Germany, November 18-19, 2010.Optimizing Computational Performance for Real-Time Mapping with Airborne Laser Scanning
2010.Registration and Calibration
Airborne and Terrestrial Laser Scanning; Whittles Publishing, 2010. p. 83-133.In-flight Accuracy Estimation for Airborne Lidar Data
2009. ION GNSS 2009, Savannah, GA, USA, September 22 – 25, 2009. p. 434-441.Image-based indoor tracking device for detection and mitigation of NLOS effects
Navigation. 2009. Vol. Submitted.Airborne LiDAR In-flight Accuracy Estimation
GPS World. 2009. Vol. 20, num. 8, p. 37-41.Towards in-flight quality assessment of airborne laser scanning
2008. XXI ISPRS Congress, Beijing (China), July 3-11, 2008.On the calibration strategy of medium format cameras for direct georeferencing
International Calibration and Orientation Workshop EuroCOW, Castelldefels, Spain, 30.1.-1.2. 2008.Vers une analyse de qualité des données de laser aéroporté en temps réel
Geomatik Schweiz. 2008. Vol. 9, p. 460-464. DOI : 10.5169/seals-236536.Vision-aided inertial navigation system for robotic mobile mapping
Journal of Applied Geodesy. 2008. Vol. 2, p. 39-52. DOI : 10.1515/JAG.2008.005.Theory and Reality of Direct Georeferencing in National Coordinates
ISPRS Journal of Photogrammetry and Remote Sensing. 2008. Vol. 63, p. 272-282. DOI : 10.1016/j.isprsjprs.2007.09.002.Accuracy Estimation for Laser Point Cloud Including Scanning Geometry
2007. 5th International Symposium on Mobile Mapping Technology, Padova (Italy), May 29-31, 2007.Towards Automated LiDAR Boresight Self-calibration
2007. 5th International Symposium on Mobile Mapping Technology, Padova (Italy), May 29-31, 2007.An eye for landscape – rapid aerial mapping with handheld sensors
GPS World. 2006. Vol. 5, num. May, p. 27-33.Reliability of Direct Georeferencing Phase 2: A Case Study on Practical Problems and Solutions., Checking and Improving of Digital Terrain Models / Reliability of Direct Georeferencing.
2006
Reliability of Direct Georeferencing Phase 1: An Overview of the Current Approaches and Possibilities., Checking and Improving of Digital Terrain Models / Reliability of Direct Georeferencing.
2006