机构

• 长春光学精密机械与物... [2]
• 武汉岩土力学研究所 [2]

采集方式

• OAI收割 [4]

内容类型

• 会议论文 [2]
• 期刊论文 [2]

发表日期

• 2022 [1]
• 2021 [1]
• 2011 [1]
• 2010 [1]

学科主题

筛选

浏览/检索结果: 共4条，第1-4条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 Large Deformation Disaster Mechanism and Control Technique for Deep Roadway in Faulted Zone 期刊论文  OAI收割 FRONTIERS IN EARTH SCIENCE, 2022, 卷号: 10, 页码: 12 作者:  Liu, Xuewei;  Chen, Juxiang;  Liu, Bin;  Luo, Yong;  Zhu, Yuanguang   |  收藏  |  浏览/下载：71/0  |  提交时间：2022/04/11 large deformation  mechanism  control technique  deep roadway  faulted zone   Large Deformation Control of Deep Roadways in Fractured Hard Rock Based on Cracking-Restraint Method 期刊论文  OAI收割 ROCK MECHANICS AND ROCK ENGINEERING, 2021, 页码: 22 作者:  Zhao, Yue-Mao;  Feng, Xia-Ting;  Jiang, Quan;  Han, Yong;  Zhou, Yang-Yi   |  收藏  |  浏览/下载：67/0  |  提交时间：2021/05/25 Deep roadway  Fractured hard rock  Large deformation control  Cracking-restraint method  Energy absorbing bolt   A parallel algorithm for medical images registration based on B-splines (EI CONFERENCE) 会议论文  OAI收割 4th International Congress on Image and Signal Processing, CISP 2011, October 15, 2011 - October 17, 2011, Shanghai, China 作者:  Zhang T. 收藏  |  浏览/下载：26/0  |  提交时间：2013/03/25 Cubic B-splines is widely applied in non-rigid registration because of its approximation performance and fast computational characteristics. However  a small scale non-rigid deformation is needed to characterize by a large number of control points. Moreover  an iterative optimization strategy of the non-rigid registration algorithm and the normalized mutual information (NMI) cost a great quantity calculation. So  the process of the non-rigid registration is slowed by calculations of NMI in a iterative optimization strategy. In this paper  a parallel optimization algorithm based on cubic B-splines functions is proposed to parallelize the optimization algorithm of the nonrigid registration and the calculations of normalize mutual information. In practice  a fast algorithm of cubic B-splines is used and the control points are only distributed on the targets. Experiments show that the use of the fast algorithm and the parallel optimization strategy improves the non-rigid registration process of medical images. 2011 IEEE.   Animated models coarsening with local area distortion and deformation degree control (EI CONFERENCE) 会议论文  OAI收割 International Conference on Image Processing and Pattern Recognition in Industrial Engineering, August 7, 2010 - August 8, 2010, Xi'an, China 作者:  Zhang S.;  Zhao J. 收藏  |  浏览/下载：23/0  |  提交时间：2013/03/25 In computer graphics applications  mesh coarsening is an important technique to alleviate the workload of visualization processing. Compared to the extensive works on static model approximation  very little attentions have been paid to animated models. In this paper  we propose a new method to approximate animated models with local area distortion and deformation degree control. Our method uses an improved quadric error metric guided by a local area distortion measurement as a basic hierarchy. Also  we define a deformation degree parameter to be embedded into the aggregated quadric errors  so areas with large deformation during the animation can be successfully preserved. Finally  a mesh optimization process is proposed to further reduce the geometric distortion for each frame. Our approach is fast  easy to implement  and as a result good quality dynamic approximations with well-preserved sharp features can be generated at any given frame. 2010 SPIE.