| Author(s) | Madasu Hanmandlu, V. Shantaram* and M. Vamsi Krishna** |
| Affiliation | FOE, Multimedia University. Jalan Multimedia, 63100 Cyberjaya Selangor, Malaysia . 1T Department, American 1nterCon. University, 12655 W Jefferson Blvd., Los Angeles, USA . .. Electronics & Communications Dept., S.S.N. College, Ongole 523001, A. P, India |
| Title | Surface Reconstruction from Multiple Views of Painted Curves |
| Source | Journal of King Saud University. Computer & Information Sciences. Volume 15, No 1. (2003/1423) |
| Abstract | A normal to the extremal contour of a 3D object is the same as the normal computed for the image contour projected on the unit sphere by the rays grazing the extremal contour. This fact is utilized in the present work to derive the parameters of quadric surfaces. We require three views of the point of intersection of two painted curves on an object. Out of the three views, one view must be chosen such that the image contours of the curves appear close to the extremal contours. Then the normals to the image contours (i.e., apparent contours) and the normals to the surface curves (i.e., contour generators) can be related through differential geometry to yield quadric representation of a surface at the point of interest. |
