A fast ambient occlusion method for real-time plant rendering
文献类型：期刊论文
| 作者 | Teng, Jun; Jaeger, Marc; Hu, Bao-Gang
|
| 刊名 | JOURNAL OF COMPUTER SCIENCE AND TECHNOLOGY
 |
| 出版日期 | 2007-11-01 |
| 卷号 | 22期号:6页码:859-866 |
| 关键词 | accessibility value estimation plant visualization real-time rendering |
| 英文摘要 | Global illumination effects are crucial for virtual plant rendering. Whereas real-time global illumination rendering of plants is impractical, ambient occlusion is an efficient alternative approximation. A tree model with millions of triangles is common, and the triangles can be considered as randomly distributed. The existing ambient occlusion methods fail to apply on such a type of object. In this paper, we present a new ambient occlusion method dedicated to real time plant rendering with limited user interaction. This method is a three-step ambient occlusion calculation framework which is suitable for a huge number of geometry objects distributed randomly in space. The complexity of the proposed algorithm is O(n), compared to the conventional methods with complexities of O(n(2)). Furthermore, parameters in this method can be easily adjusted to achieve flexible ambient occlusion effects. With this ambient occlusion calculation method, we can manipulate plant models with millions of organs, as well as geometry objects with large number of randomly distributed components with affordable time, and with perceptual quality comparable to the previous ambient occlusion methods. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Computer Science, Hardware & Architecture ; Computer Science, Software Engineering |
| 研究领域[WOS] | Computer Science |
| 关键词[WOS] | MODELS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000251010700008 |
| 公开日期 | 2015-12-24 |
| 源URL | [http://ir.ia.ac.cn/handle/173211/9405]  |
| 专题 | 自动化研究所_09年以前成果 |
| 作者单位 | 1.Chinese Acad Sci, Inst Automat, LIAMA NLPR, Beijing 100080, Peoples R China 2.INRIA Futurs, DigiPlante Team, CIRAD AMAP, Montpellier, France |
| 推荐引用方式 GB/T 7714 | Teng, Jun,Jaeger, Marc,Hu, Bao-Gang. A fast ambient occlusion method for real-time plant rendering[J]. JOURNAL OF COMPUTER SCIENCE AND TECHNOLOGY,2007,22(6):859-866. |
| APA | Teng, Jun,Jaeger, Marc,&Hu, Bao-Gang.(2007).A fast ambient occlusion method for real-time plant rendering.JOURNAL OF COMPUTER SCIENCE AND TECHNOLOGY,22(6),859-866. |
| MLA | Teng, Jun,et al."A fast ambient occlusion method for real-time plant rendering".JOURNAL OF COMPUTER SCIENCE AND TECHNOLOGY 22.6(2007):859-866. |
入库方式： OAI收割
来源：自动化研究所
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