The Perspective Silhouette of a Canal Surface
| dc.contributor.author | Kim, Ku-Jin | en_US |
| dc.contributor.author | Lee, In-Kwon | en_US |
| dc.date.accessioned | 2015-02-16T07:30:17Z | |
| dc.date.available | 2015-02-16T07:30:17Z | |
| dc.date.issued | 2003 | en_US |
| dc.description.abstract | We present an efficient and robust algorithm for parameterizing the perspective silhouette of a canal surface and detecting each connected component of the silhouette. A canal surface is the envelope of a moving sphere with varying radius, defined by the trajectoryC(t)of its center and a radius functionr(t). This moving sphere,S(t), touches the canal surface at a characteristic circleK(t). We decompose the canal surface into a set of characteristic circles, compute the silhouette points on each characteristic circle, and then parameterize the silhouette curve. The perspective silhouette of the sphereS(t)from a given viewpoint consists of a circleQ(t); by identifying the values oftat whichK(t)andQ(t)touch, we can find all the connected components of the silhouette curve of the canal surface.ACM CSS: I.3.7 Computer Graphics-Three Dimensional Graphics and Realism | en_US |
| dc.description.number | 1 | en_US |
| dc.description.seriesinformation | Computer Graphics Forum | en_US |
| dc.description.volume | 22 | en_US |
| dc.identifier.doi | 10.1111/1467-8659.t01-1-00642 | en_US |
| dc.identifier.issn | 1467-8659 | en_US |
| dc.identifier.pages | 15-22 | en_US |
| dc.identifier.uri | https://doi.org/10.1111/1467-8659.t01-1-00642 | en_US |
| dc.publisher | Blackwell Publishers, Inc and the Eurographics Association | en_US |
| dc.title | The Perspective Silhouette of a Canal Surface | en_US |