Obtaining 3-dimensional shape of textured and specular surfaces using four-source photometry

Title: Obtaining 3-dimensional shape of textured and specular surfaces using four-source photometry
Creator(s): Coleman, E. North; Jain, Ramesh
Date: 1982
Is Part Of: Computer Graphics and Image Processing
Volume: 18
Issue: 4
Pages: 309-328
Language: eng
ISSN: 0146-664X
DOI: https://doi.org/10.1016/0146-664X(82)90001-6
URI: https://www.sciencedirect.com/science/article/pii/0146664X82900016
Zotero BiDiAr: https://www.zotero.org/groups/5293298/bidiar/items/ATVHCU4Y/item-list
Abstract: Thephotometric stereo method is extended to four-source photometry for obtaining 3-dimensional shapes of visually textured and specular surfaces from intensity values. The table look-up approach (based on reflectance maps) for determining surface normals is shown to be of limited value in this context and a more direct method of computing these normals is used. Our method also eliminates the requirement of a preliminary system calibration procedure. The method is applied to real images as a test of its applicability.
cited by: Tecniche di modellazione 3D per una documentazione accurata delle incisioni rupestri: confronto tra Structure from Motion e stereofotometria

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