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Vibration Compensation for Fisheye Lenses in UAV Applications

Gurtner, Alex, Boles, Wageeh W., & Walker, Rodney A. (2007) Vibration Compensation for Fisheye Lenses in UAV Applications. In Digital Image Computing: Techniques and Applications (DICTA) 2007, 3-5 december 2007, Adelaide, Australia.

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Abstract

Low-cost aerial vision systems need to face the challenges of using low quality products to perform aerial photography. Such systems are widely used in remote controlled aircrafts and unmanned aerial vehicles (UAVs) to collect aerial imagery and are used for image acquisition, terrain mapping or remote sensing. A one-pixel shift in a 0.8 mega pixel resolution image captured from a UAV operating at 1000ft will correspond to about 2.5m measurement error on the ground. In our case, a vibrating fisheye lens moving relative to the camera added new uncertainties in the collected images and required compensation. This paper presents a vibration compensation approach using a modified Hough Transform utilizing the circle shaped image provided by a fisheye lens. We define the fisheye circle boundary by using a Canny edge detector. Our vibration compensation was tested using our collected aerial images with enhanced performance in more than 80% of the cases.

Impact and interest:

3 citations in Scopus
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ID Code: 9682
Item Type: Conference Paper
Keywords: Image processing, Fisheye lens, Hough transform, Vibration compensation, Image analysis
DOI: 10.1109/DICTA.2007.4426799
ISBN: 0769530672
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > GEOMATIC ENGINEERING (090900) > Photogrammetry and Remote Sensing (090905)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > AEROSPACE ENGINEERING (090100)
Divisions: Current > Research Centres > Australian Research Centre for Aerospace Automation
Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Copyright Owner: Copyright 2007 IEEE
Copyright Statement: Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Deposited On: 24 Sep 2007
Last Modified: 29 Feb 2012 23:40

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