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Title: Comparing endocranial surfaces: mesh superimposition and coherent point drift registration
Authors: Dupej, Ján
Rangel de Lázaro, Gizéh
Pereira-Pedro, Ana Sofía
Píšová, Hana
Pelikán, Josef
Bruner, Emiliano
Keywords: Endocasts;Surface analysis;Correspondence problem;Paleoneurology
Issue Date: 2018
Publisher: Springer Japan
Citation: Digital Endocasts: from skulls to brains, 2018, 143-151
Series/Report no.: Replacement of Neanderthals by Modern Humans Series;
Abstract: The endocranial cavity is a major source of information for the assessment of brain morphology in extinct species. Digital molds of the endocranium can be reconstructed from fossil remains. In paleoneurology, these so-called endocasts are examined using shape analysis and multivariate statistical methods to quantify differences among species and individuals. These surfaces are relatively smooth and offer few landmarks; as such, morphometric comparisons are not straightforward, and correspondence search algorithms are necessary to identify loci of equivalent anatomical variation. Many solutions to this so-called correspondence problem have been proposed, but these often require considerable manual input. Here, we present the application in paleoneurology of a correspondence search and symmetrization algorithm originally designed for facial and palatal scans. Homologous representations of surfaces were used to render a computed visualization of differences in shape between modern humans, Neanderthals, archaic humans, and chimpanzees.
ISBN: 978-4-431-56580-2
DOI: 10.1007/978-4-431-56582-6_10
Type: Book chapter
Appears in Collections:Paleobiología

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