A statistical classification method for hierarchical irregular objects

  • Markus Peura
Poster Session B: Active Vision, Motion, Shape, Stereo
Part of the Lecture Notes in Computer Science book series (LNCS, volume 1310)


This paper introduces a method for classifying structured visual objects that appear frequently in meteorological, medical and biological imagery. The focused objects are taken to be highly irregular and composed of subobjects in a hierarchical manner. The approach consists three principal steps. At first, hierarchical objects are detected in an segmented image. Secondly, shape descriptors are used to extract information of the contours of the objects. Finally, a global description for an object is obtained by applying statistical moments. As the goal is to classify natural objects, the most challenging task is to tolerate irregularity present in both spatial and hierarchical levels. Experiments with artificial images show that the method combines succesfully shape descriptors and object hierarchy.


Natural Object Shape Descriptor Tree Hierarchy Focus Object Applied Object 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag Berlin Heidelberg 1997

Authors and Affiliations

  • Markus Peura
    • 1
  1. 1.Laboratory of Computer and Information ScienceHelsinki University of TechnologyHUTFinland

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