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Rafał Dabrowski, Paulina Delis, Marek Wyszynski
Analysis of the possibility of using a video camera as a UAV sensor
| Conference Information: |
9th International Conference “Environmental Engineering”, 22–23 May 2014, Vilnius, LITHUANIA |
| Source: |
ICEE-2014 - International Conference on Environmental
Engineering |
| Book Series: |
International Conference on Environmental Engineering
(ICEE) Selected papers |
| ISSN: |
eISSN 2029-7092 online |
| ISBN: |
eISBN 978-609-457-640-9 |
| ISBN: |
ISBN 978-609-457-690-4 CD |
| Year: |
2014 |
| Publisher: |
Vilnius Gediminas Technical University Press Technika |
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Abstract
In the ISPRS final report from 2012 it was accented that light and
low cost Unmanned Aerial Vehicles are playing a more and more important
role when it comes to carrying remote sensing and photogrammetric sensors.
Such platforms are characterized by a smals weight, low cost of purchase
and later exploitation and, depending on their technical specifications,
a payload of about 1,5 kg. The above characteristics make these platforms
an attractive alternative for carrying sensors in comparison to a traditional
airplane, especially whilst conducting photogrammetric and remote sensing
studies of small areas.
However because of the size and mass of such UAV’s, data acquired by means of the
sensors which they carry is characterized by very dynamically changing in time
exterior orientation parameters. In extreme cases this can cause no forward
overlap between subsequent frames which makes such data, in most circumstances, useless.
An interesting solution is using a video camera (or a number of video cameras) as a sensor.
Such cameras enable, depending on the standard of registration, the acquisition of tens of
images every second, which means a very large forward overlap.
The article contains the analyses of the possibility of using the FCO HD 1080i and
FCO HD 720i video cameras as a UAV sensor. Each of the analyzed cameras is different
in terms of their build, as well as the quality of the acquired imagery, however that
all have the same low weight. An evaluation was made in two different aspects: geometrical and photographic.
Based on specialized test fields it was possible to determine the exterior orientation
parameters ofthese cameras which allowed for an analysis of their invariability.
Other parameters which had been determined and analyzed include: the spatial
resolution, the way in which colours are registered and aberrations which were
present within the optics of these cameras.
Keywords: video camera, camera calibration, UAV.
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