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An Application of Neural and Probabilistic Unsupervised Methods to Environmental Factor Analysis of Multi-spectral Images

  • Luca Pugliese
  • Silvia Scarpetta
  • Anna Esposito
  • Maria Marinaro
Part of the Lecture Notes in Computer Science book series (LNCS, volume 3617)

Abstract

In this paper we test the performance of two unsupervised clustering strategies for the analysis of LANDSAT multispectral images of the Temples of Paestum Area in Italy. The classification goal is to identify environmental factors (soils, vegetation types, water) on the images, exploiting the features of the seven LANDSAT spectral bands. The first strategy is a fast migrating means technique based on a Maximum Likelihood Principle (ISOCLUST algorithm),and the second is the Kohonen Self Organizing Map (SOM) neural network. The advantage of using the SOM algorithm is that both the information on classes and the similarity between the classes are obtained (since proximity corresponds to similarity among neurons). By exploiting the information on class similarity it was possible to automatically colour each cluster identified by the net (assigning a specific colour to each of them) thus facilitating a successive photo-interpretation.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2005

Authors and Affiliations

  • Luca Pugliese
    • 1
  • Silvia Scarpetta
    • 3
    • 4
  • Anna Esposito
    • 1
    • 2
  • Maria Marinaro
    • 1
    • 3
    • 4
  1. 1.IIASS, Istituto Internazionale per gli Alti Studi Scientifici "E.R.Caianiello"Vietri sul Mare – Salerno
  2. 2.Dipartimento di PsicologiaSeconda Università di NapoliCaserta
  3. 3.Dipartimento di Fisica "E.R.Caianiello"Università degli Studi di SalernoSalernoItaly
  4. 4.INFM and INFN Sezione di SalernoItaly

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