Binary Volumetric Octree Representation for Image-Based Rendering
A. O. Zhirkov · 2001
A Binary Volumetric Octree (BVO) is a volume array with binary opacity voxels, represented as octree. The BVO structure allows to stores not the complete object volume, but only the surface voxels. The new approach to Image Based Rendering (IBR), using this representation, makes it possible to use single data structure for fast, occlusion-compatible hierarchical warping, splatting-based rendering, and easy level-of-detail selection. This representation allows approximation of multiple depth images with guaranteed solution of the main problem of IBR methods-gaps filling (with minor conditions imposed on the originals depth images). The rendering process can be either completely CPUbased, or use hardware assisted texture mapping.