| 基于不变矩的椭圆(圆)识别方法 |
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| 引用本文： | 李秀明,石照耀.基于不变矩的椭圆(圆)识别方法[J].北京工业大学学报,2007,33(11):1136-1140. |
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| 作者姓名： | 李秀明 石照耀 |
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| 作者单位： | 北京工业大学,机械工程与应用电子技术学院,北京,100022;北京工业大学,机械工程与应用电子技术学院,北京,100022 |
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| 基金项目： | 国家自然科学基金，北京市自然科学基金 |
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| 摘 要： | 为了能快速识别椭圆(圆)曲线,给出了利用不变矩的识别方法,根据曲线离散点的坐标,求出椭圆(圆)曲线的形心和归一化的中心矩,并利用这些中心矩,计算了椭圆(圆)曲线的特征参数,然后再根据这些特征参数和识别准则对曲线进行识别,该识别方法不需要施加任何条件和限制,能快速识别曲线中所有大小和摆向各异的椭圆,实验结果表明这种方法是有效的。
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| 关 键 词： | 不变矩 椭圆识别 圆识别 |
| 文章编号： | 0254-0037（2007）11-1136-05 |
| 收稿时间： | 2006-10-16 |
Ellipses and Circles Recognition Based on Invariant Moments |
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| LI Xiu-ming,SHI Zhao-yao.Ellipses and Circles Recognition Based on Invariant Moments[J].Journal of Beijing Polytechnic University,2007,33(11):1136-1140. |
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| Authors: | LI Xiu-ming SHI Zhao-yao |
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| Abstract: | A method to detect ellipses and circles rapidly is proposed by invariant moments.According to the coordinates of discrete points,the centroid coordinates of ellipses and circles are calculated firstly.Then nor- malized central moments are computed.Based on the normalized central moments,the characteristic parame- ters are obtained.In this paper a method for ellipses and circles recognition,which is not confined by any con- ditions can be used for quick ellipses recognition of all sizes and orientation.The experimental results show that this approach is effective. |
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| Keywords: | invariant moments ellipses recognition circles recognition |
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