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Martin Hämmerle was a PostDoc researcher with the 3D Spa­tial Data Processing Group at the Chair of GIScience, Institute of Geography, University of Heidelberg.

Research Interests

• GIS-based Algorithm Development for 3D Laser Scanning / LiDAR data
• 3D Geoinformation Extraction and Analysis
• Low-cost 3D geodata capturing, crowdsourcing

Publications

Peer-reviewed papers

• Hämmerle, M.; Lukač, N.; Chen, K.-C.; Koma, Zs.; Wang, C.-K.; Anders, K.; Höfle, B. (2017): Simulating various terrestrial and UAV LiDAR scanning configurations for understory forest structure modelling. ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences IV-2/W4, pp. 59-65. doi:10.5194/isprs-annals-IV-2-W4-59-2017
• Lin, T.-P., Lin, F.-Y., Wu, P.-R., Hämmerle, M., Höfle, B., Bechtold, S., Hwang, R.-L., Chen, Y.-C. (2017): Multiscale analysis and reduction measures of urban carbon dioxide budget based on building energy consumption. Energy and Buildings 153, pp. 356-367. doi:10.1016/j.enbuild.2017.07.084
• Klopfer, F., Hämmerle, M., Höfle, B. (2017): Assessing the Potential of a Low-Cost 3-D Sensor in Shallow-Water Bathymetry. IEEE Geoscience and Remote Sensing Letters 14(8), pp. 1388-1392. doi:10.1109/LGRS.2017.2713991
• Profe, J., Höfle, B., Hämmerle, M., Steinbacher, F., Yang, M.-S., Schröder-Ritzrau, A. & Frank, N. (2016). Characterizing tufa barrages in relation to channel bed morphology in a small karstic river by airborne LiDAR topo-bathymetry. Proceedings of the Geologists' Association, 127(6), pp. 664-675. doi:10.1016/j.pgeola.2016.10.004
• Hämmerle, M. & Höfle, B. (2016): Direct derivation of maize plant and crop height from low‑cost time‑of‑flight camera measurements. Plant Methods 2016(12:50). doi:10.1186/s13007-016-0150-6
• Hämmerle, M., Schütt, F. & Höfle, B. (2016): Terrestrial and unmanned aerial system imagery for deriving photogrammetric three-dimensional point clouds and volume models of mass wasting sites. Journal of Applied Remote Sensing. Vol. 10(2), 026029, doi:10.1117/1.JRS.10.026029
• Marx, S., Hämmerle, M., Klonner, C. & Höfle, B. (2016): 3D Participatory Sensing with Low-Cost Mobile Devices for Crop Height Assessment – A Comparison with Terrestrial Laser Scanning Data. PLoS ONE. Vol. 11(4), e0152839, doi:10.1371/journal.pone.0152839
• Koenig, K., Höfle, B., Hämmerle, M., Jarmer, T., Siegmann, B. & Lilienthal, H. (2015): Comparative classification analysis of post-harvest growth detection from terrestrial LiDAR point clouds in precision agriculture. ISPRS Journal of Photogrammetry and Remote Sensing. Vol. 104(0), pp. 112-125, doi:10.1016/j.isprsjprs.2015.03.003
• Hämmerle, M., Höfle, B. (2014): Effects of Reduced Terrestrial LiDAR Point Density on High-Resolution Grain Crop Surface Models in Precision Agriculture.Sensors, Vol. 14, pp. 24212-24230, doi:10.3390/s141224212
• Regvat, R., Hämmerle, M., Marx, S., König, K. & Höfle, B. (2014): 3D-Punktbasierte Solarpotenzialanalyse für Gebäudefassaden mit freien Geodaten. In: Strobl, J., Blaschke, T., Griesebner, G. & Zagel, B.: Angewandte Geoinformatik 2014. Beiträge zum 26. AGIT-Symposium Salzburg, pp. 196-204, ISBN 978-3-87907-543-0.
• Hämmerle, M., Höfle, B., Fuchs, J., Schröder-Ritzrau, A., Vollweiler, N. & Frank, N. (2014): Comparison of Kinect and Terrestrial LiDAR Capturing Natural Karst Cave 3D Objects. IEEE Geoscience and Remote Sensing Letters, Vol. 11(11), pp. 1896-1900, doi:10.1109/LGRS.2014.2313599.
• Koenig, K., Höfle, B., Müller, L., Hämmerle, M., Jarmer, T., Siegmann, B. & Lilienthal, H. (2013): Radiometric correction of terrestrial LiDAR data for mapping of harvest residiues density. In: ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci., II-5/W2, pp. 133-138, doi:10.5194/isprsannals-II-5-W2-133-2013
• Matzarakis, A., Hämmerle, M., Koch, E. & Rudel, E. (2012): The climate tourism potential of Alpine destinations using the example of Sonnblick, Rauris and Salzburg. Theoretical and Applied Climatology 110(4):645—658, special issue “125 years of high-mountain research at Sonnblick Observatory (Austrian Alps)”, December 2012, doi:10.1007/s00704-012-0686-y
• Matzarakis, A., Hämmerle, M., Endler, C., Muthers, S. & Koch, E. (2012): Assessment of tourism and recreation destinations under climate change conditions in Austria. Meteorologische Zeitschrift 21(2):157-165, April 2012, doi:10.1127/0941-2948/2012/0342
• Hämmerle, M., Gál, T., Unger, J. & Matzarakis, A. (2011): Comparison of models calculating the sky view factor used for urban climate investigations. Theoretical and Applied Climatology 105(3-4):521-527. doi:10.1007/s00704-011-0402-3

Proceedings, further contributions

• Bechtold, S., Hämmerle, M. & Höfle, B. (2016): Simulated full-waveform laser scanning of outcrops for development of point cloud analysis algorithms and survey planning: An application for the HELIOS lidar simulation framework. In: Proceedings of the 2nd Virtual Geoscience Conference, Bergen, Norway, 21-23 September 2016, pp 57-58.
• Anders, K., Hämmerle, M., Miernik, G., Drews, T., Escalona, A., Townsend, C. & Höfle, B. (2016): 3D Geological Outcrop Characterization: Automatic Detection of 3D Planes (Azimuth and Dip) Using LiDAR Point Clouds. In: ISPRS Annals. Prague, Czech Republic, pp. 105-112. doi:10.5194/isprs-annals-III-5-105-2016
• Canli, E., Höfle, B., Hämmerle, M., Thiebes, B. & Glade, T. (2015): Permanent 3D laser scanning system for an active landslide in Gresten (Austria). In: Geophysical Research Abstracts. Vol. 17(EGU2015-2885-2), pp. 1-1.
• Hämmerle, M., Schütt, F. & Höfle, B. (2015): Terrestrial and UAS-borne Imagery for Quarry Monitoring with Low-Cost Structure from Motion. In: 35. Wissenschaftlich-Technische Jahrestagung der DGPF. Cologne, Germany, pp. 1-2.
• Höfle, B., Koenig, K., Griesbaum, L., Kiefer, A., Hämmerle, M., Eitel, J. & Koma, Z. (2015): LiDAR Vegetation Investigation and Signature Analysis System (LVISA). In: Geophysical Research Abstracts. Vol. 17(EGU2015-1537-1), pp. 1-1.
• Hämmerle M., Gál T., Unger J., Matzarakis A. (2014): Different aspects in the quantification of the sky view factor in complex environments. Acta Climatologica et Chorologica Universitatis Szegediensis 47/48:53—62
• Koenig, K., Höfle, B., Müller, L., Hämmerle, M., Jarmer, T., Siegmann, B. & Lilienthal, H. (2013): Mapping Density of Harvest Residues from Terrestrial Laser Scanning and RGB Imagery. In: ISPRS Workshop on UAV-based Remote Sensing Methods for Monitoring Vegetation. Cologne, Germany, pp. 1-1.
• Hämmerle, M., Forbriger, M. & Höfle, B. (2013): Multitemporal 3D data capturing and GIS analysis of fluvial processes and geomorphological changes with terrestrial laser scanning. In: Geophysical Research Abstracts. Vol. 15(EGU2013-1748), pp. 1-1.
• Hämmerle, M., Forbriger, M. & Höfle, B. (2013): Multitemporale 3D-Erfassung und GIS-Analyse fluvial-geomorphologischer Prozesse mit terrestrischem Laserscanning. In: Proceedings of the Geoinformatik 2013. Heidelberg, Germany, pp. 1-8.
• Meister, S., Kohli, P., Izadi, S., Hämmerle, M., Rother, C. & Kondermann, D. (2012): When Can We Use KinectFusion for Ground Truth Acquisition? Proceedings of IEEE/RSJ International Conference on Intelligent Robots and Systems, Workshop on Color-Depth Camera Fusion in Robotics, 7 p. [Additional materials]
• Hämmerle, M., Matzarakis, A., Endler, C., Muthers, S. & Koch, E. (2012) Klima und Tourismus in Österreich - Ansätze zur tourismus-klimatischen Bewertung. Proceedings 9. Deutsche Klimatagung, Freiburg 09. – 12.10.2012. In: Helmut Mayer (Hrsg.) (2012) Berichte des Meteorologischen Instituts der Albert-Ludwigs-Universität Freiburg Nr. 23 ‘9. Deutsche Klimatagung, Freiburg, 9. bis 12. Oktober 2012: Kurzfassungen von Vorträgen und Posterbeiträgen’, ISSN 1435-618X, 144 pp.
• Hämmerle, M., Gál, T., Unger, J. & Matzarakis, A. (2011): Introducing a skript for calculating the Sky View Factor used for urban climate investigations. Acta Climatologica et Chorologica Univ. Szegediensis 44/45:83--92.

Workshops & Teaching

• Introduction to acquisition and analysis of terrestrial laser scanning data in archaeology at ArchEyeAutomatic summer school 2017
• Introduction to acquisition and analysis of terrestrial laser scanning data in high mountain research at ISPRS Innsbruck Summer School of Alpine Research 2017
• 3D-TAIGER (’Multi-Source 3D Geoinformation Extraction for Improved Management of Forest and Natural Hazards – Collaboration between TAIwan and GERmany’) summer school, 5-7 September 2016, Heidelberg
• Seminar and field trip Sources of 3D geodata for physical geography of alpine regions (Ötztal), Austria in summer semester 2016
• Seminar and field trip 3D Geoinformatik und Laser Scanning in Griechenland in summer semester 2015
• Seminar 'GIS-Analysen mit Freier und Open Source Software' in winter semesters 2014/15, 2015/16
• Organizing committee of the CrowdAnalyser-Workshop, 08th - 09th of May 2014, Heidelberg
• Organization of the hands-on workshop LiDAR in geoarchaology – terrrestrial laser scanning in theory and practice (part of the conference Digital Geoarchaeology - New Technologies for Interdisciplinary Human-Environmental Research, November 2013, Heidelberg)
• Tutor for terrestrial laser scanning courses at the University of Heidelberg in summer semesters 2012 - 2016

PhD Thesis

• The Analysis of 3D Point Clouds Acquired with Low-Cost Methods for Geoscientific Research on Natural Objects.

Master Thesis

• 3D geodata in precision agriculture: Comparative analysis of crop parameters derived from high-end and low-cost sensors.

Bachelor Thesis

• Comparison and validation of models calculating the sky view factor.

Curriculum Vitae