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Proceedings Paper

Testing the performance of the MNDVI vegetation index
Author(s): George Aim. Skianis; Dimitrios A. Vaiopoulos; Konstantinos G. Nikolakopoulos
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Paper Abstract

The Modified Normalizes Differences Vegetation Index is defined by: MNDVI = (c.NIR-Red)/(c.NIR+Red). c is a real number, which generally takes values between 0.1 and 10. NIR and Red are the reflectances at the Near Infrared and Red channels, respectively. In the present paper the performance of the MNDVI vegetation index is studied, using an ALOS image over a burnt forest area of Greece. For each produced MNDVI image, the statistical parameters of the histogram (standard deviation and entropy), the semivariogram and the frequency spectrum are calculated. It is observed that the entropy and standard deviation present a peak at a characteristic c value which depends on the statistical parameters of the NIR and Red channels. The semivariogram also changes with c and presents the most rapid increasing tendency with distance at the same characteristic c value. Therefore, changing c in the MNDVI produces images with different tonality contrasts and spatial variations, which may help the potential user to broaden the spectrum of the available vegetation index images and detect targets of interest.

Paper Details

Date Published: 18 September 2009
PDF: 9 pages
Proc. SPIE 7472, Remote Sensing for Agriculture, Ecosystems, and Hydrology XI, 747204 (18 September 2009); doi: 10.1117/12.830262
Show Author Affiliations
George Aim. Skianis, Univ. of Athens (Greece)
Dimitrios A. Vaiopoulos, Univ. of Athens (Greece)
Konstantinos G. Nikolakopoulos, Institute of Geology & Mineral Exploration (Greece)

Published in SPIE Proceedings Vol. 7472:
Remote Sensing for Agriculture, Ecosystems, and Hydrology XI
Christopher M. U. Neale; Antonino Maltese, Editor(s)

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