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An Automatic System for the Classification of Microfossils

S. Brechner and F. Ade
Proceedings of the 11th Scandinavian Conference on Image Analysis (SCIA 99)


A hierarchical approach for the classification of marine microfossils is presented. A-priori knowledge about the sought shapes is used for the image segmentation. The objects are divided into elliptical and hammer-like objects. For the search for elliptical objects RANSAC is combined with a genetic algorithm resulting in a robust and relatively fast algorithm for ellipse detection. The found ellipse directly yields important features for the subsequent classification. On the other hand, for the detection of hammer-like objects a hierarchical structural approach is employed. The proposed method can handle both occlusion and missing object parts.

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  author = {S. Brechner and F. Ade},
  title = {An Automatic System for the Classification of Microfossils},
  booktitle = {Proceedings of the 11th Scandinavian Conference on Image Analysis (SCIA 99)},
  year = {1999},
  pages = {825-832},
  volume = {2},
  keywords = {classification, recognition, natural objects}