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A digital image analysis and neural network based system for identification of third-stage parasitic strongyle larvae from domestic animals

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dc.contributor.author Theodoropoulos, G en
dc.contributor.author Loumos, V en
dc.contributor.author Anagnostopoulos, C en
dc.contributor.author Kayafas, E en
dc.contributor.author Martinez-Gonzales, B en
dc.date.accessioned 2014-03-01T01:15:25Z
dc.date.available 2014-03-01T01:15:25Z
dc.date.issued 2000 en
dc.identifier.issn 0169-2607 en
dc.identifier.uri https://dspace.lib.ntua.gr/xmlui/handle/123456789/13483
dc.subject image analysis en
dc.subject image identification en
dc.subject neural network en
dc.subject parasite en
dc.subject.classification Computer Science, Interdisciplinary Applications en
dc.subject.classification Computer Science, Theory & Methods en
dc.subject.classification Engineering, Biomedical en
dc.subject.classification Medical Informatics en
dc.title A digital image analysis and neural network based system for identification of third-stage parasitic strongyle larvae from domestic animals en
heal.type journalArticle en
heal.identifier.primary 10.1016/S0169-2607(99)00056-5 en
heal.identifier.secondary http://dx.doi.org/10.1016/S0169-2607(99)00056-5 en
heal.language English en
heal.publicationDate 2000 en
heal.abstract A competitive learning vector quantization artificial neural network (ANN) was trained to identify third-stage parasitic strongyle larvae fi om domestic animals on the basis of quantitative data obtained from processed digital images of larvae, For this reason, various quantitative features obtained from processed digital images of larvae were tested as to whether they are variant or invariant to the shape taken by the motile larvae during image recording. A total of 255 images of 57 individual larvae in various shapes belonging to five genera were recorded. Following image processing, 16 features were measured, of which seven were selected as invariant to larva shape. By trial and error, two of those features, 'area' and 'perimeter', along with the quantitative features used in conventional identification, 'overall body length', 'width' and 'extension of sheath' (tip of larva to tip of sheath), were used as an effective training data set for the ANN. This ANN coupled with an image analysis facility and a knowledge relational database became the basis for developing a computer-based larva identification system whose overall identification performance was 91.9%. The advantages of this system are its speed and objectivity. The objectivity of the system is based on the fact that it is not subject to inter- and intra-observer variability arising from the user's profile of competency in interpreting subjective and non-quantifiable descriptions. The limitations of the system are that it cannot handle raw images but only data extracted from images, its performance depends on the reliability of the input vectors used as training data for the ANN, and its use is restricted only to well-equipped laboratories due to its requirement for expensive instrumentation. (C) 2000 Elsevier Science Ireland Ltd. All rights reserved. en
heal.publisher ELSEVIER SCI IRELAND LTD en
heal.journalName COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE en
dc.identifier.doi 10.1016/S0169-2607(99)00056-5 en
dc.identifier.isi ISI:000086633100001 en
dc.identifier.volume 62 en
dc.identifier.issue 2 en
dc.identifier.spage 69 en
dc.identifier.epage 76 en


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