Proceedings: GI 2001

The Rayset and Its Applications

Minglun Gong, Yee-Hong Yang

Proceedings of Graphics Interface 2001: Ottawa, Ontario, Canada, 7 - 9 June 2001, 71-80

DOI 10.20380/GI2001.09

  • BibTeX

     title = {The Rayset and Its Applications},
     author = {Minglun Gong and Yee-Hong Yang},
     booktitle = {Proceedings of the Graphics Interface 2001 Conference, June 7-9 2001, Ottawa, Ontario, Canada},
     url = {},
     year = {2001},
     month = {June},
     pages = {71--80}


In this paper, a novel concept, rayset, is proposed. A new image based representation, object centered concentric mosaics (OCCM), is derived based on this concept. The rayset is a parametric function, which consists of two mapping relations. The first mapping relation maps from a parameter space to the ray space. The second one maps from the parameter space to the attribute space. We show that different image-based scene representations can all be cast as different kinds of raysets, and image-based rendering approaches can be regarded as attempts to sample and reconstruct the scene using different raysets. A collection of OCCM is a 3-D rayset, which can be used to represent an object. The storage size for OCCM is about the same as an animation sequence generated with a virtual camera rotated around the object. However, comparing with such an animation sequence, OCCM provide a much richer experience because the user can move back and forth freely in the scene and observe the changes in parallax.