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Impact of discrete wavelet transform on discriminating airborne hyperspectral tropical rainforest tree species


Citation

Ghiyamat, Azadeh and Mohd Shafri, Helmi Zulhaidi and Mahdiraji, Ghafour Amouzad and Ashurov, Ravshan and Mohamed Shariff, Abdul Rashid and Mansor, Shattri (2014) Impact of discrete wavelet transform on discriminating airborne hyperspectral tropical rainforest tree species. Journal of Applied Remote Sensing, 8 (1). art. no. 083556. pp. 1-24. ISSN 1931-3195

Abstract / Synopsis

Discriminating tropical rainforest tree species is still a challenging task due to a variety of species with high spectral similarity and due to very limited studies conducted in this area. We are investigating the effect of discrete wavelet transform (DWT) on enhancing discrimination of tropical rainforest tree species. For this purpose, airborne imaging spectrometer for applications (AISA) airborne hyperspectral data obtained from Malaysian’s rainforest area are used; six tree species were selected from the study area. For comparison purposes, the performance of DWT is compared with the original reflectance, first, and second derivative spectra by using five different spectral measure techniques. An overall discrimination accuracy of ∼74% is obtained with DWT using Euclidean distance, which outperforms the original reflectance and first and second derivatives by ∼16.6 , 11.9, and 22.1%, respectively. The results suggest a significant impact of the DWT approach on improving tropical rainforest tree species discrimination.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Engineering
Institute of Gerontology
DOI Number: https://doi.org/10.1117/1.JRS.8.083556
Publisher: Society of Photo-Optical Instrumentation Engineers
Keywords: Airborne hyperspectral remote sensing; Tropical rainforest; Tree species discrimination; Discrete wavelet transform; Spectral dimensionality; Derivative spectra
Depositing User: Nabilah Mustapa
Date Deposited: 15 Dec 2015 11:34
Last Modified: 15 Dec 2015 11:34
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1117/1.JRS.8.083556
URI: http://psasir.upm.edu.my/id/eprint/37945
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