NDLI: A method for clipping splats on sharp edges and corners

Content Provider	Springer Nature Link
Author	Ivo, Rafael Fernandes Vidal, Creto Augusto Cavalcante Neto, Joaquim Bento
Copyright Year	2012
Abstract	The intrinsic characteristic of surface splatting is the treatment of points as if they were discs to fill the gaps between the samples. That requires special processing near sharp edges and corners in order to prevent rendering artifacts from appearing. In this work, we present a clever way of clipping splats near sharp edges and corners by a classification of neighboring splats, which belong to distinct intersecting surfaces that are called clip partners. If the surface represented by the clip partners of a certain splat S is completely concave or convex, the union or the intersection of the clipping areas of each clip partner is performed to clip the splat properly depending of their position in relation to S. If that surface has an edge or a transition zone between a concave and a convex part, the clip partners are divided into two groups. Each group is classified using the proposed method and the results are combined properly. That method is capable of correctly clipping splats in general situations, even at low sampling rates, without additional modeling information beyond the splats’ normals and radii.
Starting Page	995
Ending Page	1004
Page Count	10
File Format	PDF
ISSN	01782789
Journal	The Visual Computer
Volume Number	28
Issue Number	10
e-ISSN	14322315
Language	English
Publisher	Springer-Verlag
Publisher Date	2012-05-31
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Surface splatting Sharp features Rendering Artificial Intelligence (incl. Robotics) Computer Graphics Computer Science Image Processing and Computer Vision
Content Type	Text
Resource Type	Article
Subject	Computer Graphics and Computer-Aided Design Computer Vision and Pattern Recognition Software

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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