Rendering Image-based Object Hierarchy

Abstract

Image-based representations of objects are useful in computer game and virtual museum and art gallery applications. In this paper, we present a hierarchical image-based object (IBO) representation for a complex scene. In this hierarchy, we find a camera-sampling circle for each node and attempt to optimize the number of reference images that represent visible objects inside each node. While rendering this IBO hierarchy, we adaptively traverse this hierarchy to the levels with sufficient camera sampling rates for the output image. We experimentally evaluate the proposed schemes on a PC for complex scenes that consist of image-based objects. The proposed scheme achieves a near real-time rendering rate for such complex scenes with more than 1 million polygons.