| 一种分步式多模态视网膜图像自动配准方法 |
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| 引用本文： | 张二虎,陈梁. 一种分步式多模态视网膜图像自动配准方法[J]. 计算机工程, 2004, 30(21): 132-133,145 |
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| 作者姓名： | 张二虎 陈梁 |
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| 作者单位： | 西安理工大学信息科学系,西安,710048;西安理工大学信息科学系,西安,710048 |
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| 基金项目： | 华中科技大学图像信息处理与智能控制教育部重点实验室基金资助项目(TKLJ0109) |
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| 摘 要： | 提出了一种基于视网膜图像特征点可靠提取的算法，在此基础上提出了一种对视网膜图像进行分步式的图像配准方法。首先利用最小二乘法进行快速的粗配，再进一步根据特征点的对应性，利用投影变换模型进行精确配准。与传统方法相比，该方法配准精度高，可以达到亚像素级精度，整个配准过程不需要人工干预。
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| 关 键 词： | 图像配准 特征点提取 视网膜图像 投影变换 仿射变换 |
| 文章编号： | 1000-3428(2004)21-0132-02 |
A Multi-step for Automatic Registering Method of Multimodality Retinal Images |
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| ZHANG Erhu,CHEN Liang. A Multi-step for Automatic Registering Method of Multimodality Retinal Images[J]. Computer Engineering, 2004, 30(21): 132-133,145 |
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| Authors: | ZHANG Erhu CHEN Liang |
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| Abstract: | A fully automatic hierarchical method of retinal image registration based on the geometrical feature extraction is proposed . Firstly, a small number of geometrical feature points are extracted for coarse registration using least-square method. Secondly, more feature points are extracted for advanced registration based on projective transformation. Compared with the ordinary method, this method has a better robust feature with higher accuracy, it also has a fully automatic feature so it needs little human intervention in the whole processing. |
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| Keywords: | Image registration Feature point extraction Retinal image Projective transformation Affine transformation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
