|
|||||
|
|
| 一种基于多项式插值改进的亚像素细分算法 | |
| 引用本文： | 李庆利,张少军,李忠富,白荫玖,金剑,苟中魁.一种基于多项式插值改进的亚像素细分算法[J].北京科技大学学报,2003,25(3):280-283. |
| 作者姓名： | 李庆利 张少军 李忠富 白荫玖 金剑 苟中魁 |
| 作者单位： | 1. 北京科技大学机械工程学院,北京,100083;唐山学院,唐山,063000 2. 北京科技大学机械工程学院,北京,100083 3. 唐山学院,唐山,063000 |
| 基金项目： | 国家“九五”科技攻关项目(No.95-528-01-01-01c) |
| 摘 要： | 介绍了一种基于多项式插值法的改进的亚像素细分算法及相应计算模板和公式，并对算法的误差进行了分析。本算法应用在经典Sobel算子基础上构造出的方向模板，对灰度图像进行处理，得到梯度图像，然后在梯度图像上沿目标边缘的梯度方向进行多项式插值法亚像素细分计算，对目标边缘进行亚像素精确定位。实例说明本算法是可行的。 |
| 关 键 词： | 灰度图像 图像处理 梯度图像 边缘检测 图像分割 多项式插值 亚像素细分算法 |
| 修稿时间： | 2001年10月11日 |
A Improved Subpixel Edge Detecting Algorithm Based on Polynomial Interpolation |
|
| LI Qingli,ZHANG Shaojun,Li Zhongfu,BAI Ymjiu,JIN Jian,GOU Zhongkui Mechanical Engineering School,University of Science and Technology Beijing,Beijing ,China Tangshan College,Tangshan ,China.A Improved Subpixel Edge Detecting Algorithm Based on Polynomial Interpolation[J].Journal of University of Science and Technology Beijing,2003,25(3):280-283. | |
| Authors: | LI Qingli ZHANG Shaojun Li Zhongfu BAI Ymjiu JIN Jian GOU Zhongkui Mechanical Engineering School University of Science and Technology Beijing Beijing China Tangshan College Tangshan China |
| Institution: | LI Qingli,ZHANG Shaojun,Li Zhongfu,BAI Ymjiu,JIN Jian,GOU Zhongkui Mechanical Engineering School,University of Science and Technology Beijing,Beijing 100083,China Tangshan College,Tangshan 063000,China |
| Abstract: | A improved subpixel edge detecting algorithm based on polynomial interpolation, masks and calculating formulae is introduced, the error cause of the operator is analyzed, and the error formula is derived. The algorithm uses direction masks based on classical Sobel masks in converting gray into gradient images and applies the polynomial interpolation to subpixel edge detecting at the gradient direction of edge on gradient images. Some examples are presented to demonstrate the effectiveness of the method. |
| Keywords: | subpixel imaging measurement accuracy edge detection image segmentation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |