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| 层次结构树木物理运动的实时仿真 | |
| Alternative Title | simulation of physically-based tree animation in realtime |
| 杨猛; 吴恩华 | |
| 2011 | |
| Source | 中国图象图形学报
 |
| ISSN | 0091-3286 |
| Volume | 50Issue:6Pages:1112-1120 |
| English Abstract | 提出一种在GPU上实现基于力学运动原理的层次结构树木运动的并行仿真技术。该技术通过分析物理运动原理与多层次的矩阵结构(HMSM)算法的并行性,来达到将树木动画在图形硬件CUDA平台上进行加速的目的。首先介绍层次结构树木在外力诸如风力等作用下的物理运动原理;然后,针对树木的物理运动以及层次结构叠加算法详细地进行并行性分析;之后着重阐述CUDA框架下树木运动的并行结构设计过程与并行算法的详细设计方法;最后在GPU上执行树木物理运动仿真。实验结果表明,该技术不但能够生成真实感较强的树木动画序列,还能够实时模拟基于物理的树木运动。同时,该技术给计算机动画的加速算法提供了很好的思想。 |
| Indexed Type | CNKI ; EI ; CSCD ; WANFANG |
| Abstract | We propose an approach to automatically extracting foreground regions. This is a novel method for segmenting salient objects from still images by background elimination. To extract foreground regions, a new method of background elimination based on multiscale segmentation is proposed to detect candidate object regions. To this end, we use a trimap consisting of foreground, background, and undefined regions and a region adjacency graph. A graph-cut technique is finally used to extract exact foreground regions from the candidates. Experimental results have shown that the proposed method yields a better foreground extraction than Kim's method under various environments containing multiple objects and clutter backgrounds in natural images. © 2011 Society of Photo-Optical Instrumentation Engineers (SPIE). |
| Keyword | 树木动画 基于物理 层级结构 Cuda加速 实时 |
| Department | 中国科学院软件研究所计算机科学国家重点实验室;中国科学院研究生院;澳门大学科学技术学院电脑与资讯科学系; |
| Subject | Computer Science |
| Sponsorship | 国家自然科学基金项目(60833007,60773030,60973066)|国家高技术研究发展计划(863)项目(2008AA01Z301)|澳门科研基金项目 |
| Language | 英语 |
| CSCD ID | CSCD:4222217 |
| Content Type | 期刊论文 |
| URI | http://ir.iscas.ac.cn/handle/311060/15988 |
| Collection | 中国科学院软件研究所 |
| Recommended Citation GB/T 7714 | 杨猛,吴恩华. 层次结构树木物理运动的实时仿真[J]. 中国图象图形学报,2011,50(6):1112-1120. |
| APA | 杨猛,&吴恩华.(2011).层次结构树木物理运动的实时仿真.中国图象图形学报,50(6),1112-1120. |
| MLA | 杨猛,et al."层次结构树木物理运动的实时仿真".中国图象图形学报 50.6(2011):1112-1120. |
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