2009, English, Article edition: Combining Extended Dependency Tree –HMM based Recognition and Unsupervised Segmentation for Land Cover Mapping in Aerial Images Boudaren, Mohamed El Yazid; Belaïd, Abdel

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Bookmark: http://trove.nla.gov.au/version/209045
Physical Description
  • text
Published
  • HAL - CCSD
  • 2009
Language
  • English

Edition details

Title
  • Combining Extended Dependency Tree –HMM based Recognition and Unsupervised Segmentation for Land Cover Mapping in Aerial Images
Author
  • Boudaren, Mohamed El Yazid
  • Belaïd, Abdel
Published
  • HAL - CCSD
  • 2009
Physical Description
  • text
Subjects
Notes
  • An important challenge to any image pixels classification system is to correctly assign each pixel to its proper class without blurring edges delimiting neighboring regions. In this paper, we present an aerial image mapping approach that advantageously combines unsupervised segmentation with a supervised Markov model based recognition. The originality of the proposed system carries on three concepts: the introduction of an auto-adaptive circular-like window size while applying our stochastic classification to preserve region edges, the extension of the Dependency Tree –HMM to permit the computation of likelihood probability on windows of different shapes and sizes and a mechanism that checks the coherence of the indexing by integrating both segmentations results: from unsupervised over segmentation, regions are assigned to the predominating class with a focus on inner region pixels. To validate our approach, we achieved experiments on real world high resolution aerial images. The obtained results outperform those obtained by supervised classification alone.
  • HAL:inria-00395327, version 1
  • HAL:http:/​/​hal.inria.fr/​inria-00395327/​en/​
Language
  • English
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