|
|||||
|
|
| 多目标轮廓Mumford-Shah水平集提取 | |
| 引用本文： | 张荣国,刘小君,党伟超,刘焜.多目标轮廓Mumford-Shah水平集提取[J].智能系统学报,2011(4):360-366. |
| 作者姓名： | 张荣国 刘小君 党伟超 刘焜 |
| 作者单位： | 1. 太原科技大学计算机科学与技术学院,山西太原030024;合肥工业大学机械与汽车工程学院,安徽合肥230009 2. 合肥工业大学机械与汽车工程学院,安徽合肥,230009 3. 太原科技大学计算机科学与技术学院,山西太原,030024 |
| 基金项目： | 国家自然科学基金资助项目(51075113) |
| 摘 要： | 目标轮廓的快速检测进而提取其几何形状,在图形图像处理中有着重要的作用.提出了一种多目标轮廓的水平集提取方法,对基于Mumford-Shah模型的C-V方法从两方面进行了改进:增加梯度矢量场和曲线法方向的融合作为边界吸引场,生成可以驱动主动轮廓向边缘进化的双向几何变形流,保留原图像分布信息作为区域进化能,解决未考虑局部几何信息造成的区域能量捕捉信息不全,或边缘梯度场和演化曲线法线方向正交时无法实现拓扑结构变化的缺陷;对水平集函数进行修正,使得它在收敛过程中能自动进行调整,确保其满足符号距离函数的要求,扩大初始化前迭代搜索区域,减少初始化次数,提高收敛效率;最后给出所提方法的数字化求解方案.实验表明该方法可行且具有较好的鲁棒性. |
| 关 键 词： | Mumford-Shah模型 水平集方法 多目标轮廓 能量方程 |
Mumford-Shah level set method for multi-objective contour extraction |
|
| ZHANG Rongguo,LIU Xiaojun,DANG Weichao,LIU Kun.Mumford-Shah level set method for multi-objective contour extraction[J].CAAL Transactions on Intelligent Systems,2011(4):360-366. | |
| Authors: | ZHANG Rongguo LIU Xiaojun DANG Weichao LIU Kun |
| Affiliation: | ZHANG Rongguo1,2,LIU Xiaojun2,DANG Weichao1,LIU Kun2 (1.School of Computer Science and Technology,Taiyuan University of Science & Technology,Taiyuan 030024,China,2.School of Mechanical and Automotive Engineering,Hefei University of Technology,Hefei 230009,China) |
| Abstract: | Fast detection of objective contours and extraction of its geometric shape have important roles in graphics and image processing.Based on the Mumford-Shah model,a novel level set method for multi-objective contour extraction was presented.First,the gradient vector field was combined with normal direction of the curves as boundary abstracted fields,so as to generate a bi-directional geometric deformable flow field which can drive active contours evolving towards the boundary from inside or outside edges.Furt... |
| Keywords: | Mumford-Shah model level set method multi-objective contours energy equation |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |