A statistical pipeline for identifying physical features that differentiate classes of 3D shapes

Journal Article (Journal Article)

The recent curation of large-scale databases with 3D surface scans of shapes has motivated the development of tools that better detect global patterns in morphological variation. Studies, which focus on identifying differences between shapes, have been limited to simple pairwise comparisons and rely on prespecified landmarks (that are often known). We present SINATRA, the first statistical pipeline for analyzing collections of shapes without requiring any correspondences. Our novel algorithm takes in two classes of shapes and highlights the physical features that best describe the variation between them.We use a rigorous simulation framework to assess our approach. Lastly, as a case study we use SINATRA to analyze mandibular molars from four different suborders of primates and demonstrate its ability recover known morphometric variation across phylogenies.

Full Text

Duke Authors

Cited Authors

  • Wang, B; Sudijono, T; Kirveslahti, H; Gao, T; Boyer, DM; Mukherjee, S; Crawford, L

Published Date

  • June 1, 2021

Published In

Volume / Issue

  • 15 / 2

Start / End Page

  • 638 - 661

Electronic International Standard Serial Number (EISSN)

  • 1941-7330

International Standard Serial Number (ISSN)

  • 1932-6157

Digital Object Identifier (DOI)

  • 10.1214/20-AOAS1430

Citation Source

  • Scopus