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Superresolution mapping using a hopfield neural network with fused images

By Minh Q. Nguyen, Peter M. Atkinson and Hugh G. Lewis


Superresolution mapping is a set of techniques to increase the spatial resolution of a land cover map obtained by softclassification methods. In addition to the information from the land cover proportion images, supplementary information at the subpixel level can be used to produce more detailed and accurate land cover maps. The proposed method in this research aims to use fused imagery as an additional source of information for superresolution mapping using the Hopfield neural network (HNN). Forward and inverse models were incorporated in the HNN to support a new reflectance constraint added to the energy function. The value of the function was calculated based on a linear mixture model. In addition, a new model was used to calculate the local endmember spectra for the reflectance constraint. A set of simulated images was used to test the new technique. The results suggest that fine spatial resolution fused imagery can be used as supplementary data for superresolution mapping from a coarser spatial resolution land cover proportion imagery

Topics: GA, TD, QA
Year: 2006
OAI identifier: oai:eprints.soton.ac.uk:23469
Provided by: e-Prints Soton

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