Charting topographic maps based on UAV data using the image classification method

Przemysław Klapa , Piotr Bożek , Izabela Piech

Abstract

A topographic map is a representation of the terrain, its landform and spatial elements present therein. Land surveying and photogrammetric measurements must be conducted in order to produce such cartographic document. The following must be done while obtaining information on topographic objects: determine the character and type of an object or phenomenon; determine the range of its occurrence; indicate a precise location. The next stage involves classification of objects into relevant classes and categories, i.e. arable land, pastures, forests, water basins, technical infrastructure, buildings, and other. Then, the determined classes undergo the process of cartographic generalization by combining smaller elements into a single complex, determination of a common border of their occurrence, and application of relevant graphic symbols and colours. The measuring technique which provides quick and accurate topographic information about the surrounding area is the one that uses Unmanned Aerial Vehicles (UAV). Digital photographs taken during the flight are the basis for generating a high-quality orthophotomap. Accurate determination of the location of individual spatial elements allows large-scale cartographic documents to be developed. This paper will present the method of charting topographic maps of rural areas based on orthophotomaps made from the photographs taken during the UAV flight. Supervised and unsupervised methods of object classification will be tested in order to increase the effectiveness of determination of types and occurrence range of individual topographic objects, and the obtained results will be used to chart a topographic map of the studied area.
Author Przemysław Klapa (FoEEaLS / DoG)
Przemysław Klapa,,
- Department of Geodesy
, Piotr Bożek (FoEEaLS / DoAGCaP)
Piotr Bożek,,
- Department of Agricultural Geodesy, Cadastre and Photogrammetry
, Izabela Piech (FoEEaLS / DoAGCaP)
Izabela Piech,,
- Department of Agricultural Geodesy, Cadastre and Photogrammetry
Journal seriesGeomatics, Landmanagement and Landscape, ISSN 2300-1496, (N/A 20 pkt)
Issue year2019
No2
Pages77-85
Publication size in sheets0.5
Keywords in Englishtopographic map geospatial data, UAV, photogrammetry, large-scale cartographic studies
DOIDOI:10.15576/GLL/2019.2.77
URL https://gll.urk.edu.pl/zasoby/74/GLL-2-6-2019.pdf
Languageen angielski
Score (nominal)20
Score sourcejournalList
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