Giessener Elektronische Bibliothek

GEB - Giessener Elektronische Bibliothek

Identifying shape transformations from photographs of real objects

Schmidt, Filipp ; Fleming, Roland W.

Originalveröffentlichung: (2018) PLOS ONE 13(8) doi: 10.1371/journal.pone.0202115
Zum Volltext im pdf-Format: Dokument 1.pdf (17.840 KB)

Bitte beziehen Sie sich beim Zitieren dieses Dokumentes immer auf folgende
URN: urn:nbn:de:hebis:26-opus-146238

Sammlung: Open Access - Publikationsfonds
Universität Justus-Liebig-Universität GieĂźen
Institut: Department of Experimental Psychology
Fachgebiet: Psychologie
DDC-Sachgruppe: Psychologie
Dokumentart: Aufsatz
Sprache: Englisch
Erstellungsjahr: 2018
Publikationsdatum: 20.05.2019
Kurzfassung auf Englisch: An important task of human visual cognition is to make inferences about properties of objects. One such property is an objects causal history: what happened to the object in its past (e.g., ´this paper has been folded). There is relatively little research on whether and how we make such inferences. We took photographs of objects from six different materials (´wax, ´aluminum foil, ´gold foil, ´chicken wire, ´putty, ´cardboard) transformed by one of four shape-altering transformations (´folded, ´bent, ´crumpled, ´twisted). By varying execution of transformation and viewpoint, we obtained 30 images of each material/transformation combination (720 images). We asked different groups of participants to: (1) name transformations and materials, (2) rate images with respect to the extent they belonged to each transformation or material class, and (3) classify images into the four transformation classes. Our results show that participants can infer transformations from object shape-with accuracy being modulated by object material. This inference of causal history from observed object shape shows that we can distinguish between intrinsic (material) and extrinsic (transformation) properties of the object. The separation of observed shape features by their causal origin (‘shape scission’) presumably involves both perceptual and cognitive abilities.
Lizenz: Lizenz-Logo  Creative Commons - Namensnennung 4.0