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Discerning nonrigid 3D shapes from motion cues
2011
Proceedings of the National Academy of Sciences of the United States of America
Many organisms and objects deform nonrigidly when moving, requiring perceivers to separate shape changes from object motions. Surprisingly, the abilities of observers to correctly infer nonrigid volumetric shapes from motion cues have not been measured, and structure from motion models predominantly use variants of rigidity assumptions. We show that observers are equally sensitive at discriminating cross-sections of flexing and rigid cylinders based on motion cues, when the cylinders are
doi:10.1073/pnas.1016211108
pmid:21205884
pmcid:PMC3029717
fatcat:dgdf2i3rk5egffak4w25bv7nmu