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dc.contributor.authorMoshobane, M.C.
dc.contributor.authorde Bruyn, P.J.N.
dc.contributor.authorBester, M.N.
dc.date.accessioned2017-03-31T11:47:11Z
dc.date.available2017-03-31T11:47:11Z
dc.date.issued2016
dc.identifier.citationMoshobane, M.C.; de Bruyn, P.J.N.; Bester, M.N. (2016) Assessing 3D photogrammetry techniques in craniometrics. The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 41(B6): 267-273en
dc.identifier.issn2194-9034en
dc.identifier.urihttp://hdl.handle.net/123456789/2209
dc.description.abstractMorphometrics (the measurement of morphological features) has been revolutionized by the creation of new techniques to study how organismal shape co-varies with several factors such as ecophenotypy. Ecophenotypy refers to the divergence of phenotypes due to developmental changes induced by local environmental conditions, producing distinct ecophenotypes. None of the techniques hitherto utilized could explicitly address organismal shape in a complete biological form, i.e. three-dimensionally. This study investigates the use of the commercial software, Photomodeler Scanner® (PMSc®) three-dimensional (3D) modelling software to produce accurate and high-resolution 3D models. Henceforth, the modelling of Subantarctic fur seal (Arctocephalus tropicalis) and Antarctic fur seal (Arctocephalus gazella) skulls which could allow for 3D measurements. Using this method, sixteen accurate 3D skull models were produced and five metrics were determined. The 3D linear measurements were compared to measurements taken manually with a digital caliper. In addition, repetitive measurements were recorded by varying researchers to determine repeatability. To allow for comparison straight line measurements were taken with the software, assuming that close accord with all manually measured features would illustrate the model’s accurate replication of reality. Measurements were not significantly different demonstrating that realistic 3D skull models can be successfully produced to provide a consistent basis for craniometrics, with the additional benefit of allowing non-linear measurements if required.en
dc.format.extent1121671 bytes
dc.format.mimetypeapplication/pdf
dc.language.isoenen
dc.publisherCopernicus Gesellschaft MbHen
dc.subject3D Modellingen
dc.subjectArctocephalusen
dc.subjectCraniometricsen
dc.subjectFur Sealen
dc.subjectPhotogrammetryen
dc.subjectPhotomodeleren
dc.subjectPhotomodellingen
dc.subjectResearch Techniquesen
dc.titleAssessing 3D photogrammetry techniques in craniometricsen
dc.typeBookChaptersen
dc.cibjournalThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciencesen
dc.cibprojectNAen


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