Viewpoint-Based Ambient Occlusion
dc.contributor.author
dc.date.accessioned
2010-09-29T11:27:06Z
dc.date.available
2010-08-10T09:04:58Z
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
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, núm. 2, p. 44-51
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Articles publicats (D-IMA)
dc.rights
Tots els drets reservats
dc.subject
dc.title
Viewpoint-Based Ambient Occlusion
dc.type
info:eu-repo/semantics/article
dc.rights.accessRights
info:eu-repo/semantics/openAccess
dc.identifier.doi
dc.identifier.idgrec
008498