Research Papers

Accuracy assessment of vegetation community maps generated by aerial photography interpretation: perspective from the tropical savanna, Australia

[+] Author Affiliations
Donna L. Lewis

The University of Queensland, School of Geography, Planning and Environmental Management, Centre for Spatial Environmental Research, Biophysical Remote Sensing Group, Brisbane, Queensland, Australia, 4072 donna.lewis@nt.gov.au; s.phinn@uq.edu.au

Department of Natural Resources, Environment, The Arts and Sport, P.O. Box 496, Palmerston, NT 0831, Australiadonna.lewis@nt.gov.au

Stuart Phinn

The University of Queensland, School of Geography, Planning and Environmental Management, Centre for Spatial Environmental Research, Biophysical Remote Sensing Group, Brisbane, Queensland, Australia, 4072 donna.lewis@nt.gov.au; s.phinn@uq.edu.au

J. Appl. Remote Sens. 5(1), 053565 (November 22, 2011). doi:10.1117/1.3662885
History: Received March 09, 2011; Revised October 07, 2011; Accepted November 01, 2011; Published November 22, 2011; Online November 22, 2011
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Aerial photography interpretation is the most common mapping technique in the world. However, unlike an algorithm-based classification of satellite imagery, accuracy of aerial photography interpretation generated maps is rarely assessed. Vegetation communities covering an area of 530 km2 on Bullo River Station, Northern Territory, Australia, were mapped using an interpretation of 1:50,000 color aerial photography. Manual stereoscopic line-work was delineated at 1:10,000 and thematic maps generated at 1:25,000 and 1:100,000. Multivariate and intuitive analysis techniques were employed to identify 22 vegetation communities within the study area. The accuracy assessment was based on 50% of a field dataset collected over a 4 year period (2006 to 2009) and the remaining 50% of sites were used for map attribution. The overall accuracy and Kappa coefficient for both thematic maps was 66.67% and 0.63, respectively, calculated from standard error matrices. Our findings highlight the need for appropriate scales of mapping and accuracy assessment of aerial photography interpretation generated vegetation community maps.

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© 2011 Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation

Donna L. Lewis and Stuart Phinn
"Accuracy assessment of vegetation community maps generated by aerial photography interpretation: perspective from the tropical savanna, Australia", J. Appl. Remote Sens. 5(1), 053565 (November 22, 2011). ; http://dx.doi.org/10.1117/1.3662885


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