Print Email Facebook Twitter Effects of scene content and layout on the perceived light direction in 3D spaces Title Effects of scene content and layout on the perceived light direction in 3D spaces Author Xia, L. (TU Delft Human Information Communication Design) Pont, S.C. (TU Delft Human Information Communication Design) Heynderickx, I.E.J.R. (Eindhoven University of Technology) Date 2016 Abstract The lighting and furnishing of an interior space (i.e., the reflectance of its materials, the geometries of the furnishings, and their arrangement) determine the appearance of this space. Conversely, human observers infer lighting properties from the space's appearance. We conducted two psychophysical experiments to investigate how the perception of the light direction is influenced by a scene's objects and their layout using real scenes. In the first experiment, we confirmed that the shape of the objects in the scene and the scene layout influence the perceived light direction. In the second experiment, we systematically investigated how specific shape properties influenced the estimation of the light direction. The results showed that increasing the number of visible faces of an object, ultimately using globally spherical shapes in the scene, supported the veridicality of the estimated light direction. Furthermore, symmetric arrangements in the scene improved the estimation of the tilt direction. Thus, human perception of light should integrally consider materials, scene content, and layout. Subject Light directionMaterialsReal scenesScene content and layoutShapesVisual light field To reference this document use: http://resolver.tudelft.nl/uuid:e40fcea7-0bed-4fe9-8722-d032bde62970 DOI https://doi.org/10.1167/16.10.14 ISSN 1534-7362 Source Journal of vision, 16 (10), 1-13 Part of collection Institutional Repository Document type journal article Rights © 2016 L. Xia, S.C. Pont, I.E.J.R. Heynderickx Files PDF Effects_of_scene_content_ ... spaces.pdf 2.09 MB Close viewer /islandora/object/uuid:e40fcea7-0bed-4fe9-8722-d032bde62970/datastream/OBJ/view