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Classification Tree Analysis is a type of machine learning classifier. Procedures are included for training and pruning a classification tree. This module produces both hard and soft classified maps. There is one soft map for each class associated with the degree of membership for that class at a particular leaf in the tree structure.
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The SEGMENTATION module creates an image of segments that have spectral similarity across many input bands. The image on the left uses a larger similarity threshold than the one on the right, resulting in more generalized, less homogeneous segments. Using this threshold, the image allows for segments that wholly contain building objects.
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Classification Tree Analysis is a type of machine learning classifier. Procedures are included for training and pruning a classification tree. This module produces both hard and soft classified maps. There is one soft map for each class associated with the degree of membership for that class at a particular leaf in the tree structure.
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IDRISI has a variety of statistical tools for ecological modeling. Neural network analysis is used to model the presence of the gypsy moth pest in the uninfested portions of the United States using environmental driving variables.
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Land Change Modeler provides tools for habitat assessment. Areas are mapped into areas of primary and secondary habitat, primary and secondary corridor, and unsuitable lands based on land cover and habitat suitability. Parameters such as home range, size, buffer widths, and gap crossing distances are also used.
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Earth Trends Modeler provides the facility to perform seasonal trend analysis as shown here in this analysis of vegetation index imagery for the period 1982-2003. The colors in the map represent different types of trends in the seasonal curve of vegetation photosynthesis. The graph shows vegetation photosynthetic activity (Y-axis) for each of the 12 months (X-axis) of 1982 (in green) and 2003 (in red) for France. As can be seen, the red color that is found over most of Europe relates to increased photosynthetic activity through the winter and spring. Note that by looking sideways on the graph one can see that spring is coming about a month earlier in 2003 than it was in 1982.
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Recursos
- Folleto de IDRISI Taiga. IdrisiTaiga.pdf
- contáctenos: geoven@geoven.ws - +58-0414-3743564, 0414-7471439, 0274-7907464
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Copyright © 2010 Geoven
Diseñado por Geoven |
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