An accuracy assessment of a GPS- enabled digital camera

Scarmana, Gabriel (2009) An accuracy assessment of a GPS- enabled digital camera. In: International Global Navigation Satellite Systems Society Symposium on GPS/GNSS (IGNSS2009) , 1-3 Dec 2009, Surfers Paradise, Qld, Australia.

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As the consumer market embraces digital imaging, digital cameras are becoming less expensive while producing higher resolution images. This explosion in camera architecture combined with GPS technology and consumer grade photogrammetric software can provide for noncontact, inexpensive, safe and practical measuring systems which can be used for direct geo-referencing of points of interest and 3D modelling.

This study investigates the accuracy of a measuring scheme based on a GPSenabled digital camera (Ricoh 500SE) and photogrammetry software (PhotoModeler by Eos Systems Inc). The coordinate values of selected target points determined by this close-range photogrammetric system are compared to the coordinates of the same target points computed using a surveying total station. The target points were not chosen to satisfy the photogrammetry technique but were in fact natural targets part of a noise barrier located along a busy motorway.

The results of this study showed that measurements with the proposed system differed from the more precise surveying measurements by an overall positional accuracy in x, y and z of 0.5 m. This expected accuracy result was essentially a function of the accuracy of the GPS unit and when a more accurate version becomes available and is incorporated with the camera, the accuracy should reduce to that approaching a total station. The efficiency of the GPS-enabled camera system was the important point disclosed by this study.

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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: No
Item Status: Live Archive
Faculty/School / Institute/Centre: Historic - Faculty of Engineering and Surveying - Department of Surveying and Land Information
Date Deposited: 26 Sep 2016 00:11
Last Modified: 26 Sep 2016 02:34
Uncontrolled Keywords: GPS, digital cameras, photogrammetry
Fields of Research : 09 Engineering > 0909 Geomatic Engineering > 090904 Navigation and Position Fixing
09 Engineering > 0909 Geomatic Engineering > 090905 Photogrammetry and Remote Sensing
09 Engineering > 0909 Geomatic Engineering > 090903 Geospatial Information Systems
Socio-Economic Objective: B Economic Development > 88 Transport > 8898 Environmentally Sustainable Transport > 889899 Environmentally Sustainable Transport not elsewhere classified

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