| 基于椭圆拟合的快速钢管计数方法 |
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| 引用本文： | 支林仙. 基于椭圆拟合的快速钢管计数方法[J]. 计算机工程与设计, 2012, 33(5): 1928-1932 |
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| 作者姓名： | 支林仙 |
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| 作者单位： | 浙江丽水学院计算机学院,浙江丽水,323000 |
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| 基金项目： | 浙江省教育技术研究规划课题基金项目(JB097);浙江省教育厅2011年度科研基金项目(Y201121941);丽水学院重点基金项目(KZ201121) |
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| 摘 要： | 为满足钢管计数中精度和速度的需求,提出了一种新型的椭圆检测方法.该方法避开了Hough变换或随机Hough变换的复杂性,直接通过边缘跟踪对椭圆进行拟合,通过其它边缘像素对拟合结果进行校验和对比,对概率超过阈值的无包含椭圆进行计数.在边缘检测过程中对Robert算子进行了改进,并在阈值分割前对边缘进行了增强,在阈值分割后对边缘进行了保持连通性的细化.根据需要还可以在计数过程中加入人工指导.实验结果表明,该方法能快速准确地检测出图像中所有椭圆.
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| 关 键 词： | 钢管计数 椭圆检测 边缘检测 曲线拟合 边缘细化 |
Fast method for steel tube counting based on ellipse fitting |
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| ZHI Lin-xian. Fast method for steel tube counting based on ellipse fitting[J]. Computer Engineering and Design, 2012, 33(5): 1928-1932 |
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| Authors: | ZHI Lin-xian |
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| Affiliation: | ZHI Lin-xian(Computer Department,Lishui College,Lishui 323000,China) |
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| Abstract: | A new solution is proposed to meet the demands of steel-tube-counting on precision and speed.Avoiding the complexity of Hough transform or random Hough transform,the new method fits the ellipse by following edges firstly.the fitting results are checked and compared by the other pixels of edges.At last the new method counts the ellipses with probability surpassing a threshold and without containing each other.During edge detection,Robert operator is improved,and the edge is enhanced before thresholding.Edges are thinned keeping connectivity after thresholding.The Human direction is put forward according to requirement.The new solution is proved to be fast and precise in practice. |
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| Keywords: | steel tube counting ellipse detection edge detection curve fitting edge thinning |
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