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| 基于变分等值线方法的图像分割技术 | |
| 引用本文： | 蔡力,周军,封建湖,佘红伟.基于变分等值线方法的图像分割技术[J].计算数学,2006,28(1):43-52. |
| 作者姓名： | 蔡力 周军 封建湖 佘红伟 |
| 作者单位： | 1. 西北工业大学航天学院,西安,710072 2. 长安大学理学院,西安,710064 3. 西北工业大学理学院,西安,710072 |
| 摘 要： | 使用level set,函数来隐式地追踪目标图像,给出了level set函数的变分模型和相应的 Euler-Lagrange方程．在保证level set函数的等值线在目标图像附近的运动速度渐趋于零的前提下,改进了原来的Euler-Lagrange疗程,加快迭代速度．可灵活地调节模型参数以满足不同的分割要求．文中算例说明本模型的有效性、灵活性． |
| 关 键 词： | 变分等值线方法 level set函数 图像分割 |
| 收稿时间： | 2005-01-28 |
| 修稿时间： | 2005-01-28 |
IMAGE SEGMENTATION BASED ON VARIATIONAL CONTOURS METHOD |
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| Cai Li,Zhou Jun,Feng Jianhu,She Hongwei.IMAGE SEGMENTATION BASED ON VARIATIONAL CONTOURS METHOD[J].Mathematica Numerica Sinica,2006,28(1):43-52. | |
| Authors: | Cai Li Zhou Jun Feng Jianhu She Hongwei |
| Institution: | Cai Li Zhou Jun (College of Astronautics, Northwestern Polytchnical University, Xi'an 710072, China) Feng Jianhu (College of Science, Chang'an University, Xi'an 710064, China) She Hongwei (School of Science, Northwestern Polytchnical University, Xi'an 710072, China) |
| Abstract: | In this paper, a level set function is used to detect the object implicitly. A variational model of the level set function and the corresponding Euler-Lagrange equation are proposed. The Euler-Lagrange equation is modified to accelerate the convergence rate. Simultaneously, the zero contour of level set function would stop on the boundary of the object and detects it. Finally, the parameters in the model can be selected flexibly to satisfy some different motivations in segmentation. A number of examples show the efficiency and the flexibleness of our new model. |
| Keywords: | variational contours method level set function image segmentation |
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