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Online Optimization System for 320-kV Heavy Ion Multidisciplinary Research Facility 期刊论文  OAI收割
IEEE TRANSACTIONS ON NUCLEAR SCIENCE, 2019, 卷号: 66, 期号: 7, 页码: 1782-1789
作者:  
Chang, Jianjun;  Yuan, Youjin;  Zhang, Wei
  |  收藏  |  浏览/下载:44/0  |  提交时间:2019/11/10
Image matching using a bat algorithm with mutation (EI CONFERENCE) 会议论文  OAI收割
2012 International Conference on Mechatronic Systems and Automation Systems, MSAS 2012, July 21, 2012 - July 21, 2012, Wuhan, China
作者:  
Zhang J.;  Wang G.;  Zhang J.;  Zhang J.
收藏  |  浏览/下载:40/0  |  提交时间:2013/03/25
Due to shortcoming of traditional image matching for computing the fitness for every pixel in the searching space  a new bat algorithm with mutation (BAM) is proposed to solve image matching problem  and a modification is applied to mutate between bats during the process of the new solutions updating. This new approach can accelerate the global convergence speed while preserving the strong robustness of the basic BA. The realization procedure for this improved meta-heuristic approach BAM is also presented. To prove the performance of this proposed meta-heuristic method  BAM is compared with BA and other population-based optimization methods  DE and SGA. The experiment shows that the proposed approach is more effective and feasible in image matching than the other model. (2012) Trans Tech Publications  Switzerland.  
Inverse field-based approach for simultaneous B-1 mapping at high fields - A phantom based study 期刊论文  OAI收割
JOURNAL OF MAGNETIC RESONANCE, 2012, 卷号: 217, 页码: 27-35
Jin, Jin; Liu, Feng; Zuo, Zhentao; xue, rong; 薛蓉; Li, Mingyan; Li, Yu; Weber, Ewald; Crozier, Stuart
收藏  |  浏览/下载:27/0  |  提交时间:2013/12/24
Image deblurring with adaptive total variation model (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 X.;  Zhang X.;  Zhang X.
收藏  |  浏览/下载:18/0  |  提交时间:2013/03/25
A local feature based simplification method for animated mesh sequence (EI CONFERENCE) 会议论文  OAI收割
2010 2nd International Conference on Computer Engineering and Technology, ICCET 2010, April 16, 2010 - April 18, 2010, Chengdu, China
作者:  
Wang B.;  Wang B.;  Zhao J.;  Zhang S.
收藏  |  浏览/下载:24/0  |  提交时间:2013/03/25
Although animated meshes are frequently used in numerous domains  only few works have been proposed until now for simplifying such data. In this paper  we propose a new method for generating progressive animated models based on local feature analysis and deformation area preservation. We propose the use of solid angle and height value for a non-hyperbolic vertex to define the local feature parameter. This local factor is embedded to the vertex quadric error matrix when calculating the edge collapse cost. In order to preserve the areas with large deformation  we add deformation degree weight to the aggregated quadric errors when computing the unified edge contraction sequence. 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 fine details can be generated at any given frame. 2010 IEEE.  
Multiresolution animated models generation based on deformation distance analysis (EI CONFERENCE) 会议论文  OAI收割
2009 International Conference on Computer Modeling and Simulation, ICCMS 2009, February 20, 2009 - February 22, 2009, Macau, China
Shixue Z.; Enhua W.
收藏  |  浏览/下载:61/0  |  提交时间:2013/03/25
In computer graphics  animated models have been widely used to represent time-varying data. Reducing the models complexly is a common way to overcome the rendering limitations. In this paper  2009 IEEE.  we propose an efficient method for generating multiresolution animated models based on deformation distance analysis. Our method obtains different LOD models by performing iterative edge contraction operations. We use deformation distance to analysis the deformation degree of the triangle planes during the whole animation  and define a deformation weight to be added to the aggregated edge contraction cost. Thus features in areas with large deformation can be preserved well. Besides  we propose a mesh optimization method for dynamic model sequence  which can efficiently improve the temporal coherence and reduce visual artifacts between adjacent frames. The results show our approach is efficient  easy to implement  and good quality animated approximations with well-preserved fine details can be generated at any given frame. copy