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| 非降采样Contourlet图像边缘检测算法 | |
| 引用本文： | 尚政国,赵春晖,孙岩,刘金梅. 非降采样Contourlet图像边缘检测算法[J]. 光电子．激光, 2009, 20(4) |
| 作者姓名： | 尚政国 赵春晖 孙岩 刘金梅 |
| 作者单位： | 尚政国,SHANG Zheng-guo(北京遥感设备研究所,北京,100039;哈尔滨工程大学信息与通信工程学院,黑龙江,哈尔滨,150001);赵春晖,孙岩,刘金梅,ZHAO Chun-hui,SUN Yan,LIU Jin-mei(哈尔滨工程大学信息与通信工程学院,黑龙江,哈尔滨,150001) |
| 基金项目： | 国家自然科学基金，高等学校博士学科基金，黑龙江自然科学基金 |
| 摘 要： | 介绍了非降采样Contoudet变换(NSCT)的结构特点与系数分布特性,并提出了基于NSCT的图像边缘检测算法,实现了对图像高频边缘的有效去噪和提取.该方法具有多向选择性、高低频信息并行检测、信息利用率高、两类边缘相互补偿修正精确定位及抗噪声干扰能力强等特点.通过仿真实验并与Prewitt、Sobel、Canny及多尺度小波边缘检测算法进行比较,验证了该方法的有效性和优越性. |
| 关 键 词： | 轮廓渡 多尺度分析 边缘检测 非降采样滤波 |
A new edge detection method based on nonsubsampled contourlet |
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| SHANG Zheng-guo,ZHAO Chun-hui,SUN Yan,LIU Jin-mei. A new edge detection method based on nonsubsampled contourlet[J]. Journal of Optoelectronics·laser, 2009, 20(4) | |
| Authors: | SHANG Zheng-guo ZHAO Chun-hui SUN Yan LIU Jin-mei |
| Affiliation: | 1.Beijing Inst.of Remote Sensing Equipment;Beijing 100039;China;2.College of Information & Communication Engineering;Harbin Engineering University;Harbin 150001;China |
| Abstract: | We present the nonsubsampled contourlet transform and its coefficient characteristics.A method of edge detection based on nonsubsampled contourlet transform which could extract and de-noise the edge coefficients efficiently,is presented.The method is characterized with the anti-noisy,multi direction option,high utilization of information by detecting edges in different channels,and accurate position by adjusting the two detected edges each other.By simulink experiment and comparison with Prewitt,Sobel,Canny... |
| Keywords: | contourlet multisolution edge detection nunsubsampled filter |
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