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Proceedings Paper

Classification of vegetation types in military region
Author(s): Miguel Gonçalves; Jose Silvestre Silva; Jose Bioucas-Dias
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Paper Abstract

In decision-making process regarding planning and execution of military operations, the terrain is a determining factor. Aerial photographs are a source of vital information for the success of an operation in hostile region, namely when the cartographic information behind enemy lines is scarce or non-existent. The objective of present work is the development of a tool capable of processing aerial photos. The methodology implemented starts with feature extraction, followed by the application of an automatic selector of features. The next step, using the k-fold cross validation technique, estimates the input parameters for the following classifiers: Sparse Multinomial Logist Regression (SMLR), K Nearest Neighbor (KNN), Linear Classifier using Principal Component Expansion on the Joint Data (PCLDC) and Multi-Class Support Vector Machine (MSVM). These classifiers were used in two different studies with distinct objectives: discrimination of vegetation’s density and identification of vegetation’s main components. It was found that the best classifier on the first approach is the Sparse Logistic Multinomial Regression (SMLR). On the second approach, the implemented methodology applied to high resolution images showed that the better performance was achieved by KNN classifier and PCLDC. Comparing the two approaches there is a multiscale issue, in which for different resolutions, the best solution to the problem requires different classifiers and the extraction of different features.

Paper Details

Date Published: 13 October 2015
PDF: 11 pages
Proc. SPIE 9649, Electro-Optical Remote Sensing, Photonic Technologies, and Applications IX, 96490A (13 October 2015); doi: 10.1117/12.2194185
Show Author Affiliations
Miguel Gonçalves, Military Academy (Portugal)
Jose Silvestre Silva, Military Academy (Portugal)
Jose Bioucas-Dias, Instituto de Telecomunicações (Portugal)
Instituto Superior Técnico, Univ. de Lisboa (Portugal)

Published in SPIE Proceedings Vol. 9649:
Electro-Optical Remote Sensing, Photonic Technologies, and Applications IX
Gary Kamerman; Ove Steinvall; Keith L. Lewis; John D. Gonglewski, Editor(s)

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