DBPapers
DOI: 10.5593/SGEM2015/B21/S10.145

TESTING RPAS FOR CADASTRE PURPOSES

E. Housarova, K. Pavelka, J.Sedina
Friday 18 September 2015 by Libadmin2015

References: 15th International Multidisciplinary Scientific GeoConference SGEM 2015, www.sgem.org, SGEM2015 Conference Proceedings, ISBN 978-619-7105-34-6 / ISSN 1314-2704, June 18-24, 2015, Book2 Vol. 1, 1135-1142 pp

ABSTRACT
RPAS (remote piloted aircraft systems) are a modern and very useful technology for non-contact mapping and the monitoring of small areas. RPAS are usually equipped with sophisticated micro-instruments for the control and piloting of the aircraft, such as IMUs, gyroscopes, GNSS receivers, wireless controls, automatic stabilization units, and flight planners. RPAS can provide different types of image data like visible spectral range, infrared, multispectral or hyperspectral data. Bigger RPAS are able to carry more precise and expensive devices like laser scanners or hyperspectral scanners. In the Czech cadaster, the mapping of areas by aerial photogrammetry was done, but by a large plane with a calibrated, precise and very expensive camera, especially created for aerial photogrammetry. Planes are equipped with other expensive and precise devices like IMUs and GPS receivers. In order to map large areas, but operations are quite expensive. On the other hand, RPAS are much smaller, using commonly available cameras. Therefore, exploring the testing possibilities of RPAS and using it for cadastre purposes is the aim of this paper. A formed orthophoto is used from a set of images as an essential base of mapping small areas for the cadastre. Formed orthophotos from a set of images taken by RPAS is compared with a cadastral map of the area. Of course there is one difficult area in aerial photogrammetry, and that is the overlap of roofs, which has to be measured or estimated. Received coordinate differences are discussed and the inner precision of RPAS method is evaluated for cadastre purposes.

Keywords: RPAS, cadastre, mapping, orthophoto