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| 基于边缘流和距离图Snake模型分割淋巴结超声图像 | |
| 引用本文： | 张俊华,汪源源,施心陵,董怡,王怡. 基于边缘流和距离图Snake模型分割淋巴结超声图像[J]. 中国生物医学工程学报, 2006, 25(5): 532-537 |
| 作者姓名： | 张俊华 汪源源 施心陵 董怡 王怡 |
| 作者单位： | 1. 复旦大学电子工程系,上海,200433;云南大学电子工程系,昆明,650091 2. 复旦大学电子工程系,上海,200433 3. 云南大学电子工程系,昆明,650091 4. 复旦大学附属华山医院,上海,200040 |
| 基金项目： | 国家重点基础研究发展计划(973计划);上海市"曙光计划" |
| 摘 要： | 提出一种基于边缘流的距离图Snake模型的图像分割方法，用于淋巴结超声图像的分割。首先由给定的4个标记点获得Snake模型的初始轮廓，然后综合图像灰度和纹理特征构造边缘流，由边缘流演化所得边缘图来构造距离图，通过定义基于距离图的势能函数，作为Snake模型的外部势能，来引导模型形变，实现对淋巴结超声图像的半自动分割。 |
| 关 键 词： | 边缘流 距离图 Snake模型 医学超声图像 图像分割 |
| 文章编号： | 0258-8021（2006）05-0532-06 |
| 收稿时间： | 2005-09-15 |
| 修稿时间： | 2006-05-15 |
Segmentation of Lymphatic Ultrasonic Images Based on The Edge Flow and Distance Map Snake Model |
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| ZHANG Jun-Hua,WANG Yuan-Yuan,SHI Xin-Ling,DONG Yi,WANG Yi. Segmentation of Lymphatic Ultrasonic Images Based on The Edge Flow and Distance Map Snake Model[J]. Chinese Journal of Biomedical Engineering, 2006, 25(5): 532-537 | |
| Authors: | ZHANG Jun-Hua WANG Yuan-Yuan SHI Xin-Ling DONG Yi WANG Yi |
| Abstract: | A modified distance map(DM) Snake model based on the edge flow was proposed to segment ultrasonic images of lymph nodes.Firstly,the contour of the Snake model was initialized according to the 4 marks provided by an expert.Secondly,an edge flow vector was constructed at each pixel based on the integration of image intensity and texture characteristics.The distance map was formed by the edge map,which was obtained through the evolution of the edge flow.Then,the potential energy was defined based on the modified DM as the extern energy of the Snake model.Finally,the curve propagation was directed by the modified DM snake model to semi-automatically segment the ultrasonic images of lymph nodes. |
| Keywords: | edge flow distance map snake model medical ultrasonic image segmentation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |