{ "dc.contributor.author": "González García, Francisco" , "dc.contributor.author": "Sbert, Mateu" , "dc.contributor.author": "Feixas Feixas, Miquel" , "dc.date.accessioned": "2010-09-29T11:27:06Z" , "dc.date.available": "2010-08-10T09:04:58Z" , "dc.date.available": "2010-09-29T11:27:06Z" , "dc.date.issued": "2008" , "dc.identifier.citation": "Gonzalez, F., Sbert, M., i Feixas, M. (2008). Viewpoint-Based Ambient Occlusion. IEEE Computer Graphics and Applications, 28 (2), 44 - 51. Recuperat 29 setembre 2010, a http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=4459864" , "dc.identifier.issn": "0272-1716" , "dc.identifier.uri": "http://hdl.handle.net/10256/3062" , "dc.description.abstract": "We've developed a new ambient occlusion technique based on an information-theoretic framework. Essentially, our method computes a weighted visibility from each object polygon to all viewpoints; we then use these visibility values to obtain the information associated with each polygon. So, just as a viewpoint has information about the model's polygons, the polygons gather information on the viewpoints. We therefore have two measures associated with an information channel defined by the set of viewpoints as input and the object's polygons as output, or vice versa. From this polygonal information, we obtain an occlusion map that serves as a classic ambient occlusion technique. Our approach also offers additional applications, including an importance-based viewpoint-selection guide, and a means of enhancing object features and producing nonphotorealistic object visualizations" , "dc.format.mimetype": "application/pdf" , "dc.language.iso": "eng" , "dc.publisher": "IEEE" , "dc.relation.isformatof": "Reproducció digital del document publicat a: http://dx.doi.org/10.1109/MCG.2008.41" , "dc.relation.ispartof": "© IEEE Computer Graphics and Applications, 2008, vol. 28, p. 44-51" , "dc.relation.ispartofseries": "Articles publicats (D-IMA)" , "dc.rights": "Tots els drets reservats" , "dc.subject": "Entropia" , "dc.subject": "Infografia" , "dc.subject": "Visualització de la informació" , "dc.subject": "Computer graphics" , "dc.subject": "Entropy" , "dc.subject": "Information visualization" , "dc.title": "Viewpoint-Based Ambient Occlusion" , "dc.type": "info:eu-repo/semantics/article" , "dc.rights.accessRights": "info:eu-repo/semantics/openAccess" , "dc.identifier.doi": "http://dx.doi.org/10.1109/MCG.2008.41" , "dc.identifier.idgrec": "008498" }