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| 一种鲁棒的图像局部仿射不变特征提取方法 | |
| 引用本文： | 周韬,张茂军,熊志辉,徐玮.一种鲁棒的图像局部仿射不变特征提取方法[J].模式识别与人工智能,2013,26(3):276-281. |
| 作者姓名： | 周韬 张茂军 熊志辉 徐玮 |
| 作者单位： | 1.国防科技大学信息系统与管理学院长沙410073 2.武警工程大学信息工程系西安710086 |
| 基金项目： | 国家自然科学基金项目(No.61175006，61175015)、湖南省研究生科研创新项目(No.CX2010B024)、国防科学技术大学优秀博士生创新项目(No.B100504)资助 |
| 摘 要： | 提出一种鲁棒的图像局部仿射不变特征提取方法.该方法首先对图像进行M进制小波变换，根据M进制小波变换系数的能量性质来检测图像特征点.然后以检测到的稳定特征点为中心，根据特征点周围的局部图像信息，以矩的形式构造仿射不变特征描述子.实验结果证明该方法对图像的旋转变化、尺度变化、视点变化、平移等所有仿射变换均具有较好的不变性. |
| 收稿时间： | 2012-04-25 |
A Robust Affine Invariant Local Image Features Extraction Method |
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| ZHOU Tao,ZHANG Mao-Jun,XIONG Zhi-Hui,XU Wei.A Robust Affine Invariant Local Image Features Extraction Method[J].Pattern Recognition and Artificial Intelligence,2013,26(3):276-281. | |
| Authors: | ZHOU Tao ZHANG Mao-Jun XIONG Zhi-Hui XU Wei |
| Affiliation: | 1.College of Information Systems and Management,National University of Defense Technology,Changsha 410073 2.Department of Information Engineering,Engineering University of CAPF,Xi′an 710086 |
| Abstract: | A robust affine invariant local image features extraction method is proposed. Firstly,the image is transformed with M band wavelet. The feature points of the image are detected according to the energy of the M band wavelet transform coefficients. Then,every detected feature point is set to be a center. According to the local image information around the center,affine invariant feature is constructed with a moment structure. The experiments prove the invariant efficiency of the proposed method in image rotation,shift,scaling and viewpoint change etc. |
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