| 一种改进的数学形态学边缘检测算法 |
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| 引用本文： | 吕哲,王福利,常玉清. 一种改进的数学形态学边缘检测算法[J]. 计算机工程, 2008, 34(10): 173-175 |
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| 作者姓名： | 吕哲 王福利 常玉清 |
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| 作者单位： | 1. 东北大学信息科学与工程学院,沈阳,110004
2. 东北大学信息科学与工程学院,沈阳,110004;东北大学流程工业综合自动化教育部重点实验室,沈阳,110004 |
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| 基金项目： | 国家自然科学基金 , 国家重点基础研究发展计划(973计划) |
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| 摘 要： | 针对传统数学形态学边缘检测算法存在的边缘分辨率较低、低强度边缘保护能力较差等问题，提出一种改进的数学形态学边缘检测算法。该算法在保持传统形态学方法优点的基础上引入边缘方向信息，采用非极大值抑制方法对形态学梯度图像进行细化处理，利用新的基于方向的检测和连接方法从中提取边缘，既提高了检测出的边缘的分辨率，又实现了低强度边缘的保护，同时还获得了更强的抗噪声能力。与应用较为广泛的传统形态学方法及Canny边缘检测方法的比较研究也证明了该算法的有效性。
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| 关 键 词： | 边缘检测 形态学梯度 梯度方向 非极大值抑制 |
| 文章编号： | 1000-3428(2008)10-0173-03 |
| 修稿时间： | 2007-05-30 |
Improved Edge Detecting Algorithm of Mathematical Morphology |
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| LV Zhe,WANG Fu-li,CHANG Yu-qing. Improved Edge Detecting Algorithm of Mathematical Morphology[J]. Computer Engineering, 2008, 34(10): 173-175 |
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| Authors: | LV Zhe WANG Fu-li CHANG Yu-qing |
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| Affiliation: | (1. School of Information Science & Engineering, Northeastern University, Shenyang 110004;2. Key laboratory of Process Industry Automation, Ministry of Education, Northeastern University, Shenyang 110004) |
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| Abstract: | An improved edge detecting algorithm based on mathematical morphology is proposed to overcome the limitation which embarrasses the performance of the traditional mathematical morphological methods. The new algorithm inherits the merit of the traditional methods, furthermore it introduces the new idea considering about the orientation of the edge. To get thinner edge in the morphological gradient graph, non-maximum suppression is adopted. After using the new edge connecting method based on gradient direction, the ultimate edge is obtained. In virtue of this new algorithm, thin and low contrast edge is figured out and the noise is attenuated. The comparison with traditional morphology detector and the Canny detector demonstrates the improvement of the new algorithm. |
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| Keywords: | edge detection morphological gradient gradient direction non-maximum suppression |
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