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Viewpoint-Based Ambient Occlusion

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dc.contributor.author González García, Francisco
dc.contributor.author Sbert, Mateu
dc.contributor.author Feixas Feixas, Miquel
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 cat
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 eng
dc.format.mimetype application/pdf cat
dc.language.iso eng cat
dc.publisher IEEE cat
dc.relation.isformatof Reproducció digital del document publicat a: http://dx.doi.org/10.1109/MCG.2008.41 cat
dc.relation.ispartof © IEEE Computer Graphics and Applications, 2008, vol. 28, p. 44-51 cat
dc.relation.ispartofseries Articles publicats (D-IMA) cat
dc.rights Tots els drets reservats
dc.subject Entropia cat
dc.subject Infografia cat
dc.subject Visualització de la informació cat
dc.subject Computer graphics eng
dc.subject Entropy eng
dc.subject Information visualization eng
dc.title Viewpoint-Based Ambient Occlusion eng
dc.type info:eu-repo/semantics/article cat
dc.identifier.doi http://dx.doi.org/10.1109/MCG.2008.41

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