Diatom recognition by convex and concave contour curvature

Loke, R. E.; Bayer, M. M.; Mann, D. G.; du Buf, J. M. H.

http://hdl.handle.net/10400.1/6961

Utilize este identificador para referenciar este registo.

Nome:	Descrição:	Tamanho:	Formato:
Diatom recognition by convex and concave contour curvature.pdf		1.19 MB	Adobe PDF	Ver/Abrir

Contacte-nos

Autores

Resumo(s)

In this paper we describe a new contour feature set. A contour is segmented into convex, concave and straight segments, after which length and curvature features are computed. A symmetry analysis allows the detection of the number of elementary segments. Results on two contour test sets were obtained: Using only four features, a simple nearest-mean classifier yielded a perfect identification (ID) rate of 100% on a small set consisting of shapes with minute differences, which are difficult to identify even for human experts. Using 10 features, it yielded 83.5% on a large set with very diverse shapes.

URI

http://hdl.handle.net/10400.1/6961

Editora

IEEE

DOI

https://dx.doi.org/ 10.1109/OCEANS.2002.1192012

Coleções

FCT2-Artigos (em revistas ou actas indexadas)

Métricas Alternativas

Ver registo completo