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A new otolith image contour descriptor based on partial reflection

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10.1007/s10641-010-9700-3
 
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Reig Bolano, Ramon
Marti Puig, Pere
Lombarte, A.
Soria Pérez, José AntonioMés informacióMés informacióMés informació
Parisi Baradad, VicençMés informacióMés informacióMés informació
Document typeArticle
Defense date2010-12
Rights accessRestricted access - publisher's policy
All rights reserved. This work is protected by the corresponding intellectual and industrial property rights. Without prejudice to any existing legal exemptions, reproduction, distribution, public communication or transformation of this work are prohibited without permission of the copyright holder
Abstract
In this paper we propose a new contour descriptor for reconstructing fish otolith contours that uses half the number of coefficients needed by the classical elliptical Fourier descriptors (EFDs) for the same accuracy. The efficiency of the proposed shape descriptor has been tested with two different species, Liza aurata and Liza ramada, belonging to the family Mugilidae (http://aforo.cmima.csic.es), and two populations (from the USA and Canada) of the family Merlucciidae. These groups are characterized by high similarity between species; therefore, accurate, detailed shape analyses of their otoliths can help to identify and discriminate morphologically close species or different populations. For comparative purposes the descriptor was also tested with specimens of Mullus barbatus (Family Mullidae). For a certain number of coefficients (<50) the new descriptor clearly outperforms the reconstruction accuracy of the EFD.
CitationReig, R. [et al.]. A new otolith image contour descriptor based on partial reflection. "Environmental biology of fishes", Desembre 2010, vol. 89, núm. 3-4, p. 579-590. 
URIhttp://hdl.handle.net/2117/11553
DOI10.1007/s10641-010-9700-3
ISSN0378-1909
Publisher versionhttp://www.springerlink.com/index/XP7672Q7256603UM.pdf
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  • AHA - Advanced Hardware Architectures Group - Articles de revista [34]
  • Departament d'Enginyeria Electrònica - Articles de revista [1.609]
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