Image-based objects

We present a compact, image-based representation for threedimensional objects with complex shapes that can be rendered with correct perspective from arbitrary viewpoints using a listpriority algorithm. Objects are represented by six layered depth images sharing a single center of projection. They can be scaled, and freely translated and rotated, being used as primitives to construct more complex scenes. We also present a new listpriority algorithm for rendering such scenes and a back face culling strategy for a class of image-based objects. We demonstrate these concepts by constructing image-based representations from both synthetic and real objects, and rendering them at interactive rates on a PC. Due to their minimum storage requirements and rendering simplicity, image-based objects can find potential uses in games, virtual museum applications, and web catalogs. CR Categories and Subject Descriptors: I.3.3 [Computer Graphics]: Picture/Image Generation – Display Algorithms; I.3.7 [...

• Type: Conference
• Year: 1999
• Where: SI3D
• Authors: Manuel M. Oliveira, Gary Bishop
• Keywords: Computer Graphics, Image-based Objects, Image-based Representations, Listpriority Algorithm, SI3D 1999