Description shape based on B-spline approximation and contour based shape descriptors:Application to Brachiopods classification

Authors

  • Youssef Ait khouya
  • Faouzi Ghorbe

Keywords:

B-spline, Shape descriptors, Curvature,Fourier descriptors, Wavelet descriptors, Radial function

Abstract

The fossils classification has a great importance in palaeontological studies. On the one hand, they make it possible to understand the biodiversity in its morphological dimension. On the other hand, they show the morphological transformations suffered during the biological evolution. In this paper, we present a comparative study between some of contour based shape descriptors after applying a global B-spline approximation to the contours. Specifically, we studied Curvature, Fourier descriptors, Wavelet descriptors, Radial function and Fourier of Radial function. Applied B-spline approximation we can reduce the number of points in the contours and gives a smooth curve. We used this technique for fossils classification, especially Brachiopods. The five shape descriptors are evaluated against each other using the City block distance and the recognition rate.

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Published

2019-07-01

How to Cite

Youssef Ait khouya, & Faouzi Ghorbe. (2019). Description shape based on B-spline approximation and contour based shape descriptors:Application to Brachiopods classification. Journal of Network and Innovative Computing, 7, 7. Retrieved from https://cspub-jnic.org/index.php/jnic/article/view/140

Issue

Vol. 7 (2019)

Section

Original Article

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