| 树叶长宽比及边缘曲率的提取 |
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| 引用本文： | 王静,李灿灿,王情伟,王宝,李丰果.树叶长宽比及边缘曲率的提取[J].华南师范大学学报(自然科学版),2013,45(1):38-0. |
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| 作者姓名： | 王静 李灿灿 王情伟 王宝 李丰果 |
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| 作者单位： | 1.1.华南师范大学物理与电信工程学院 |
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| 基金项目： | 广东省教育部产学研结合项目(2007B090400135) |
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| 摘 要： | 树叶的轮廓特征主要包括长宽比、面积、边缘曲率和斜率等，这些特征参数是树木分类及识别的关键.为此，利用数学形态学与像素跟踪相结合的算法分离叶柄，然后利用霍特林(Hotelling)变换获取树叶的最小外接矩形，进而得到树叶的长宽比. 基于有限差分算法得到2种不同形态树叶的边缘曲率和树叶关键部位的特征斜率.
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| 关 键 词： | 图像处理 叶柄 长宽比 曲率 |
| 收稿时间： | 2011-11-25 |
| 修稿时间： | 2012-02-12 |
THE EXTRACTION OF LEAVES’ ASPECT RATIO AND BOUNDARY CURVATURE |
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| WANG Jing
,
LI Cancan
,
WANG Qingwei
,
WANG Bao
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LI Fengguo.THE EXTRACTION OF LEAVES’ ASPECT RATIO AND BOUNDARY CURVATURE[J].Journal of South China Normal University(Natural Science Edition),2013,45(1):38-0. |
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| Authors: | WANG Jing LI Cancan WANG Qingwei WANG Bao LI Fengguo |
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| Institution: | *(School of Physics and Telecommunication Engineering,South China Normal University,Guangzhou 510006,China) |
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| Abstract: | The contour features of a leaf mainly include the aspect ratio, area, boundary curvature, and slope, which are very important to classify and recognize the tree. The mathematical morphology combined with pixel tracking algorithm is used to separate petiole of the leaves. Using the Hotelling transform, the minimum enclosing rectangles and the aspect ratios of leaves are obtained. Based on the finite-difference algorithm, the boundary slopes and curvatures of the key parts of the different leaves are also obtained. |
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| Keywords: | image processing petiole aspect ratio curvature |
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