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福州大学 物理与信息工程学院,福建 福州 350000
收稿日期:2013-02-21,
修回日期:2013-04-06,
网络出版日期:2013-09-30,
纸质出版日期:2013-09-15
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王卫星 田利平 王悦. 基于改进的图论最小生成树及骨架距离直方图分割细胞图像[J]. 光学精密工程, 2013,21(9): 2464-2471
WANG Wei-xing TIAN Li-ping WANG Yue. Segmentation of cell images based on improved graph MST and skeleton distance mapping[J]. Editorial Office of Optics and Precision Engineering, 2013,21(9): 2464-2471
王卫星 田利平 王悦. 基于改进的图论最小生成树及骨架距离直方图分割细胞图像[J]. 光学精密工程, 2013,21(9): 2464-2471 DOI: 10.3788/OPE.20132109.2464.
WANG Wei-xing TIAN Li-ping WANG Yue. Segmentation of cell images based on improved graph MST and skeleton distance mapping[J]. Editorial Office of Optics and Precision Engineering, 2013,21(9): 2464-2471 DOI: 10.3788/OPE.20132109.2464.
为了解决模糊且有粘连的细胞图像的难以分割问题,本文针对医学细胞图像的特点,应用图论的思想提出了一种图论与数学形态学结合的图像分割算法。该算法先对图像进行去噪和增强,然后用改进的图论最小生成树 (MST) 算法对细胞图像进行初始分割。改进的主要内容是在算法中引入了细胞尺寸和形状的信息,从而在一定程度上改善了图论算法过分割的缺陷。在进一步的图像分割中
为了解决二值图像中的细胞粘连问题,结合数学形态学的骨架边界距离信息找出分裂线将粘连细胞分离。与常规的分水岭算法完全不同,该算法没有重复性的运算。一系列细胞图像的试验表明,该算法能够很好地分割模糊且有粘连的细胞图像,其结果令人满意。
To segment fuzzy and touching cell images accurately
an image segmentation algorithm based on graph theory and morphological mathematics was proposed according to the characteristics of medical cell images. With proposed algorithm
the images were smoothed and sharpened
firstly. Then
the improved Minimum Spanning Tree (MST) algorithm was used to segment the cell images
in which the cell size and shape information were added into MST graph to avoid the over-segmentation. Furthermore
the adherent cells were split by combining the distance mapping and the skeleton information in morphological mathematics to solve the problem of cell adhesion in the binary image. Different from the traditional watershed algorithms
the split algorithm has no repeat operation. By experiments
it shows that the proposed algorithm can segment fuzzy and touching cell images well and can obtain desired results.
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