Affiliation:
1. Sungkyunkwan University, Suwon, South Korea
Abstract
This paper presents the model and rendering algorithm of Potentially Visible Hidden Volumes (PVHVs) for multi-view image warping. PVHVs are 3D volumes that are occluded at a known source view, but potentially visible at novel views. Given a bound of novel views, we define PVHVs using the edges of foreground fragments from the known view and the bound of novel views. PVHVs can be used to batch-test the visibilities of source fragments without iterating individual novel views in multi-fragment rendering, and thereby, cull redundant fragments prior to warping. We realize the model of PVHVs in Depth Peeling (DP). Our Effective Depth Peeling (EDP) can reduce the number of completely hidden fragments, capture important fragments early, and reduce warping cost. We demonstrate the benefit of our PVHVs and EDP in terms of memory, quality, and performance in multi-view warping.
Publisher
Association for Computing Machinery (ACM)
Subject
Computer Graphics and Computer-Aided Design
Reference39 articles.
1. Multi-fragment effects on the GPU using the k-buffer
2. Robust Soft Shadow Mapping with Backprojection and Depth Peeling
3. Louis Bavoil and Kevin Myers. 2008. Order independent transparency with dual depth peeling. OpenGL SDK. NVIDIA. Louis Bavoil and Kevin Myers. 2008. Order independent transparency with dual depth peeling. OpenGL SDK. NVIDIA.
4. Multi-layer dual-resolution screen-space ambient occlusion
5. GPU-Based Tiled Ray Casting Using Depth Peeling