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Closed Contour Shape Descriptors with High Compression Properties Based on the Discrete Hartley Transform

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dc.contributor Universitat de Vic. Escola Politècnica Superior
dc.contributor Universitat de Vic. Grup de Recerca en Tecnologies Digitals
dc.contributor.author Martí i Puig, Pere
dc.contributor.author Reig Bolaño, Ramon
dc.contributor.author Danés Garolera, Jaume
dc.date.accessioned 2014-03-20T12:32:49Z
dc.date.available 2014-03-20T12:32:49Z
dc.date.created 2013
dc.date.issued 2013
dc.identifier.citation Martí-Puig, P., Reig Bolaño, R., & Danes, J. (2013). In Gibert K., Botti V. & Reig Bolaño R.(Eds.), Closed contour shape descriptors with high compression properties based on the discrete hartley transform. A: Frontiers in Artificial Intelligence and Applications, vol. 256, IOS Press, 2013, pp. 115-124 doi:10.3233/978-1-61499-320-9-115 ca_ES
dc.identifier.isbn 9781614993193
dc.identifier.issn 0922-6389
dc.identifier.uri http://hdl.handle.net/10854/2797
dc.description.abstract The quantitative analysis of shapes is required in some research fields, such as taxonomy, agronomy, ecology, medicine, among others. The quantification of an object shape, or a biological entity shape as extension, is usually performed on its closed contour data. Normally, the closed contours are automatically extracted from digital images. In these fields, the most used contour descriptors are the Elliptical Fourier Descriptors (EFD). In this paper we propose a new contour descriptor based on the Discrete Hartley Transform (DHT) that uses only half of the coefficients required by EFD to obtain a contour approximation with similar error measure. The proposed closed contour descriptors provide an excellent capability of contour information compression being suitable to be applied as input parameters of any shape classifier. The proposed parameterization can represent all kinds of closed curves and also it has the advantage that both the parameterization and the reconstructed shape from a reduced amount of them can be computed very efficiently by the fast Discrete Hartley Transform (DHT) algorithm. en
dc.format application/pdf
dc.format.extent 10 p. ca_ES
dc.language.iso eng ca_ES
dc.publisher IOP Press ca_ES
dc.rights (c) 2013 IOP Press
dc.rights Tots els drets reservats ca_ES
dc.subject.other Imatges -- Processament ca_ES
dc.title Closed Contour Shape Descriptors with High Compression Properties Based on the Discrete Hartley Transform en
dc.type info:eu-repo/semantics/bookPart ca_ES
dc.identifier.doi https://doi.org/10.3233/978-1-61499-320-9-115
dc.relation.publisherversion http://ebooks.iospress.nl/publication/35235
dc.rights.accesRights info:eu-repo/semantics/closedAccess ca_ES

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