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Proceedings Paper

Real-time flight altitude estimation using phase correlation with Gram polynomial decimation
Author(s): Aadil Jaleel Choudhry; Amir Badshah; Saadullah Amin
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Paper Abstract

The paper presents a passive technique for real-time altitude above ground level estimation for aerial vehicles using a monocular camera, a GPS receiver and an inertial measurement unit. The paper discusses a robust method for featureless registration of successive images through phase correlation using Gram polynomial decimation. Altitude is estimated by formulating the shift in pixels between the images in terms of distance travelled, calculated using corresponding GPS latitudes and longitudes. Resultant value is compensated for changes in pitch before being passed through Savitzky-Golay filter. The system can generate results every 300ms on a lowcost commercial digital signal processor with mean error of 2m and standard deviation of 13m. The proposed system is suitable for speeds up to 300m/s and altitudes up to 3000m.

Paper Details

Date Published: 14 May 2017
PDF: 7 pages
Proc. SPIE 10338, Thirteenth International Conference on Quality Control by Artificial Vision 2017, 103381A (14 May 2017); doi: 10.1117/12.2266790
Show Author Affiliations
Aadil Jaleel Choudhry, National Univ. of Sciences and Technology (Pakistan)
Amir Badshah, International Islamic Univ. (Pakistan)
Saadullah Amin, National Univ. of Sciences and Technology (Pakistan)


Published in SPIE Proceedings Vol. 10338:
Thirteenth International Conference on Quality Control by Artificial Vision 2017
Hajime Nagahara; Kazunori Umeda; Atsushi Yamashita, Editor(s)

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