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GRAPHITE
2007
ACM
10 years 8 months ago
Visibility map for global illumination in point clouds
Point-sampled geometry has gained significant interest due to their simplicity. The lack of connectivity touted as a plus, however, creates difficulties in many operations like ge...
Rhushabh Goradia, Anil Kanakanti, Sharat Chandran,...
SIGGRAPH
1993
ACM
10 years 8 months ago
Global visibility algorithms for illumination computations
The most expensive geometric operation in image synthesis is visibility determination. Classically this is solved with hidden surface removal algorithms that render only the parts...
Seth J. Teller, Pat Hanrahan
COMPGEOM
1998
ACM
10 years 8 months ago
Viewspace Partitioning of Densely Occluded Scenes
Computing the visibility of out-door scenes is often much harder than of in-door scenes. A typical urban scene, for example, is densely occluded, and it is effective to precompute...
Yiorgos Chrysanthou, Daniel Cohen-Or, Eyal Zadicar...
RT
1999
Springer
10 years 8 months ago
Computing Visibility for Triangulated Panoramas
A visibility algorithm for triangulated panoramas is proposed. The algorithm can correctly resolve the visibility without making use of any depth information. It is especially usef...
Chi-Wing Fu, Tien-Tsin Wong, Pheng-Ann Heng
DASFAA
2010
IEEE
129views Database» more  DASFAA 2010»
10 years 8 months ago
Efficient Approximate Visibility Query in Large Dynamic Environments
Abstract. Visibility query is fundamental to many analysis and decisionmaking tasks in virtual environments. Visibility computation is time complex and the complexity escalates in ...
Leyla Kazemi, Farnoush Banaei Kashani, Cyrus Shaha...
STACS
2001
Springer
10 years 8 months ago
Gathering of Asynchronous Oblivious Robots with Limited Visibility
Abstract. We consider a collection of robots which are identical (anonymous), have limited visibility of the environment, and no memory of the past (oblivious); furthermore, they a...
Paola Flocchini, Giuseppe Prencipe, Nicola Santoro...
RT
2001
Springer
10 years 8 months ago
Hardware-Accelerated from-Region Visibility Using a Dual Ray Space
This paper describes a novel from-region visibility algorithm, the unique properties of which allow conducting remote walkthroughs in very large virtual environments, without prepr...
Vladlen Koltun, Yiorgos Chrysanthou, Daniel Cohen-...
RT
2005
Springer
10 years 9 months ago
Fast Exact From-Region Visibility in Urban Scenes
We present a fast exact from-region visibility algorithm for 2.5D urban scenes. The algorithm uses a subdivision of line space for identifying visibility interactions in a 2D foot...
Jirí Bittner, Peter Wonka, Michael Wimmer
SI3D
2005
ACM
10 years 9 months ago
A general algorithm for output-sensitive visibility preprocessing
Occlusion culling based on precomputed visibility information is a standard method for accelerating the rendering in real-time graphics applications. In this paper we present a ne...
Samuli Laine
SMI
2005
IEEE
10 years 9 months ago
Two-Dimensional Visibility Charts for Continuous Curves
This paper considers computation of visibility for twodimensional shapes whose boundaries are C1 continuous curves. We assume we are given a one-parameter family of candidate view...
Gershon Elber, Robert Sayegh, Gill Barequet, Ralph...
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