| Zernike亚像素图像矩边缘检测算子方向角模型研究 |
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| 引用本文： | 姜迈,梁炜,张晓玲,李世明.Zernike亚像素图像矩边缘检测算子方向角模型研究[J].传感器与微系统,2013,32(2):16-19. |
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| 作者姓名： | 姜迈 梁炜 张晓玲 李世明 |
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| 作者单位： | 中国科学院沈阳自动化研究所工业控制网络与系统实验室,辽宁沈阳,110016 |
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| 基金项目： | 国家自然科学基金资助项目(61174026);国家“863”计划资助项目(2011AA040101);国家“973”计划前期研究专项项目(2010CB334705);中国科学院知识创新工程重要方向性项目(KGCX2—EW—104—2) |
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| 摘 要： | 基于Zernike图像矩的理想边缘模型,深入研究了方向角模型与亚像素判据间的关系。利用Zernike矩定义及其旋转不变特性,提出一种新的基于4阶方向角的Zernike矩亚像素边缘检测算子。为了提高边缘算子定位速度,首先基于9×9尺寸模板对Zernike图像矩0～4阶正交复数多项式进行了计算,推导出基于4阶方向角的边缘检测算子参数模型。最后将边缘算子应用在理想图像与实际图像上,检测结果表明:相比于传统的Zernike矩算子,基于4阶方向角的边缘检测算子具有更高的检测精度。
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| 关 键 词： | Zernike矩 亚像素 正交复数多项式 4阶方向角 |
Research on sub-pixei Zernike moments edge detecting operator based on direction angle model |
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| JIANG Mai
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LIANG Wei
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ZHANG Xiao-ling
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LI Shi-ming.Research on sub-pixei Zernike moments edge detecting operator based on direction angle model[J].Transducer and Microsystem Technology,2013,32(2):16-19. |
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| Authors: | JIANG Mai LIANG Wei ZHANG Xiao-ling LI Shi-ming |
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| Affiliation: | (Lab of Industry Control Networks and Systems,Shenyang Institute of Automation, Chinese Academy of Sciences,Shenyang 110016,China) |
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| Abstract: | Based on Zernike image moments edge model,relationship between direction angle model and sub-pixel criterion is studied deeply.A new edge detecting operator method based on 4-order direction angle is proposed,by using Zernike moments definition and its rotation invariance.In order to improve positioning speed of edge operator,the orthogonal complex polynomial is computed from 0 to 4 orders of the Zernike moments based on 9×9 mask,the edge detecting operator parameter model is deduced.Finally,edge operator is applied to ideal image and real image,test results show that the edge detecting operator based on 4-order direction angle has higher detecting precision compared with traditional method. |
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| Keywords: | Zernike moments sub-pixel orthogonal complex polynomial 4-order direction angle |
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