Accuracy assessment of geo-locations using multiresolution interpolated DEMs

Mirza Muhammad Waqar; Rafia Mumtaz; Nadeem Sufyan; Mustafa Mumtaz

doi:10.1117/12.966375

8 June 2012 Accuracy assessment of geo-locations using multiresolution interpolated DEMs

Mirza Muhammad Waqar, Rafia Mumtaz, Nadeem Sufyan, Mustafa Mumtaz

Proceedings Volume 8334, Fourth International Conference on Digital Image Processing (ICDIP 2012); 83343M (2012) https://doi.org/10.1117/12.966375
Event: Fourth International Conference on Digital Image Processing (ICDIP 2012), 2012, Kuala Lumpur, Malaysia

Abstract

This paper provides novel analysis of existing interpolation techniques and suggests improvement for more accurate orthorectification of satellite imagery. Traditional methods for measuring geo-location use Ground Control Points (GCPs). The accuracy of these methods depends on the accuracy of GCPs. The accuracy of geolocations can also be improved by using Digital Elevation Model (DEM) which incorporates topographic relief displacement to measure geographic locations. Since the accuracy of geographic locations is dependent on the resolution of DEM, in our study, the accuracy of geo-locations was assessed using interpolated DEMs of multiple resolutions. The comparative analysis showed that the accuracy of geo-locations can be improved by increasing the resolution of DEM using interpolation.

Citation Download Citation

Mirza Muhammad Waqar, Rafia Mumtaz, Nadeem Sufyan, and Mustafa Mumtaz "Accuracy assessment of geo-locations using multiresolution interpolated DEMs", Proc. SPIE 8334, Fourth International Conference on Digital Image Processing (ICDIP 2012), 83343M (8 June 2012); https://doi.org/10.1117/12.966375

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