Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XXXVIII-4/W19, 123-130, 2011
http://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XXXVIII-4-W19/123/2011/
doi:10.5194/isprsarchives-XXXVIII-4-W19-123-2011
© Author(s) 2011. This work is distributed
under the Creative Commons Attribution 3.0 License.
 
07 Sep 2012
THE EUROSDR PROJECT "RADIOMETRIC ASPECTS OF DIGITAL PHOTOGRAMMETRIC IMAGES" – RESULTS OF THE EMPIRICAL PHASE
E. Honkavaara1, R. Arbiol2, L. Markelin1, L. Martínez2, S. Bovet3, M. Bredif4, L. Chandelier5, V. Heikkinen6, I. Korpela7, L. Lelegard4, F. Pérez2, D. Schläpfer8, and T. Tokola6 1Finnish Geodetic Institute, Geodeetinrinne 2, P.O. Box 15, FI-02431 Masala, Finland
2Institut Cartografic de Catalunya. Parc de Montjuïc s/n 08038 Barcelona, Spain
3Swisstopo – Land survey of Switzerland, Seftigenstrasse 264, CH 3084 Wabern, Switzerland
4Institut Géographique National (IGN), 2-4 avenue Pasteur 94165 SAINT MANDE CEDEX, France
5Ecole Nationale des Sciences Géographiques (ENSG), 6, et 8 avenue Blaise Pascal - Cité Descartes - Champs-sur-Marne, 77455 Marne la Vallée Cedex 2, France
6Faculty of Natural and Forest Sciences, University of Eastern Finland, Joensuu, 80101 Finland
7Faculty of Agriculture and Forestry, Department of Forest Resource Management, University of Helsinki, Helsinki, 00014 Finland
8ReSe Applications Schlaepfer, Langeggweg 3, CH-9500 Wil, Switzerland
Keywords: Atmospheric correction, calibration, radiometry, resolution, reflectance, photogrammetry Abstract. This article presents the empirical research carried out in the context of the multi-site EuroSDR project "Radiometric aspects of digital photogrammetric images" and provides highlights of the results. The investigations have considered the vicarious radiometric and spatial resolution validation and calibration of the sensor system, radiometric processing of the image blocks either by performing relative radiometric block equalization or into absolutely reflectance calibrated products, and finally aspects of practical applications on NDVI layer generation and tree species classification. The data sets were provided by Leica Geosystems ADS40 and Intergraph DMC and the participants represented stakeholders in National Mapping Authorities, software development and research. The investigations proved the stability and quality of evaluated imaging systems with respect to radiometry and optical system. The first new-generation methods for reflectance calibration and equalization of photogrammetric image block data provided promising accuracy and were also functional from the productivity and usability points of view. The reflectance calibration methods provided up to 5% accuracy without any ground reference. Application oriented results indicated that automatic interpretation methods will benefit from the optimal use of radiometrically accurate multi-view photogrammetric imagery.
Conference paper (PDF, 1054 KB)


Citation: Honkavaara, E., Arbiol, R., Markelin, L., Martínez, L., Bovet, S., Bredif, M., Chandelier, L., Heikkinen, V., Korpela, I., Lelegard, L., Pérez, F., Schläpfer, D., and Tokola, T.: THE EUROSDR PROJECT "RADIOMETRIC ASPECTS OF DIGITAL PHOTOGRAMMETRIC IMAGES" – RESULTS OF THE EMPIRICAL PHASE, Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XXXVIII-4/W19, 123-130, doi:10.5194/isprsarchives-XXXVIII-4-W19-123-2011, 2011.

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