warping of a spherical representation of image-based models on gpu
文献类型：会议论文
| 作者 | Zhu Jian ; Liu Youquan ; Bao Kai ; Chang Yuanzhang ; Wu Enhua |
| 出版日期 | 2009 |
| 会议名称 | VRCAI 2009: 8th International Conference on Virtual Reality Continuum and its Applications in Industry |
| 会议日期 | 40878 |
| 会议地点 | Yokohama, Japan |
| 关键词 | Computer graphics equipment Spheres Virtual reality Weaving |
| 英文摘要 | Image warping techniques are frequently used to render 3D scenes from images with depth information for VR applications. In this paper, we first propose a spherical representation of image-based models call the Spherical Depth Image (SDI). With two Warping Equations, at runtime we then pre-warp the image onto a view-dependent plane to get an intermediate image, which is further rendered onto the target image plane using standard texture mapping. Compared with other representations, SDI is sampled uniformly and completely, therefore it can reduce much unnecessary rendering overhead and the resultant rendered image is hole-free. To speed up the computation and utilize hardwares rasterization function for image interpolation, we transport the pre-warping process into GPUs Vertex Shader. Besides, high quality rendering effect in Pixel Shader can also be achieved as traditional geometry based methods. Finally, we overcome the approachs limitation of viewing region, and design a real-time walkthrough system with LOD representations of the SDIs. Copyright © 2009 by the Association for Computing Machinery, Inc. |
| 会议主办者 | ACM SIGGRAPH |
| 会议录 | Proceedings - VRCAI 2009: 8th International Conference on Virtual Reality Continuum and its Applications in Industry
 |
| 会议录出版地 | United States |
| ISBN号 | 9781605589121 |
| 源URL | [http://124.16.136.157/handle/311060/8448]  |
| 专题 | 软件研究所_计算机科学国家重点实验室 _会议论文 |
| 推荐引用方式 GB/T 7714 | Zhu Jian,Liu Youquan,Bao Kai,et al. warping of a spherical representation of image-based models on gpu[C]. 见:VRCAI 2009: 8th International Conference on Virtual Reality Continuum and its Applications in Industry. Yokohama, Japan. 40878. |
入库方式： OAI收割
来源：软件研究所
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