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.