GEO-REFERENCED MAPPING USING AN AIRBORNE 3D TIME-OF-FLIGHT CAMERA
This paper presents the first experience of a close range bird's eye view photogrammetry with range imaging (RIM) sensors for the real time generation of high resolution geo-referenced 3D surface models. The aim of this study was to develop a mobile, versatile and less costly outdoor survey met...
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| Published in: | International archives of the photogrammetry, remote sensing and spatial information sciences. Vol. XXXVIII-5/W12; pp. 151 - 155 |
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| Main Authors: | , , |
| Format: | Journal Article |
| Language: | English |
| Published: |
Copernicus Publications
03-09-2012
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| Online Access: | Get full text |
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| Summary: | This paper presents the first experience of a close range bird's eye view photogrammetry with range imaging (RIM) sensors for the real time generation of high resolution geo-referenced 3D surface models. The aim of this study was to develop a mobile, versatile and less costly outdoor survey methodology to measure natural surfaces compared to the terrestrial laser scanning (TLS). Two commercial RIM cameras (SR4000 by MESA Imaging AG and a CamCube 2.0 by PMDTechnologies GmbH) were mounted on a lightweight crane and on an unmanned aerial vehicle (UAV). The field experiments revealed various challenges in real time deployment of the two state-of-the-art RIM systems, e.g. processing of the large data volume. Acquisition strategy and data processing and first measurements are presented. The precision of the measured distances is less than 1 cm for good conditions. However, the measurement precision degraded under the test conditions due to direct sunlight, strong illumination contrasts and helicopter vibrations. |
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| ISSN: | 2194-9034 1682-1750 2194-9034 |
| DOI: | 10.5194/isprsarchives-XXXVIII-5-W12-151-2011 |