| 一种归一化的单应矩阵直接线性估计方法 |
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| 引用本文： | 杨利峰. 一种归一化的单应矩阵直接线性估计方法[J]. 阜阳师范学院学报(自然科学版), 2011, 28(4): 11-14 |
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| 作者姓名： | 杨利峰 |
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| 作者单位： | 阜阳师范学院数学与计算科学学院,安徽阜阳,236041 |
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| 基金项目： | 安徽省高等学校青年人才基金项目(2009SQRZ150)资助 |
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| 摘 要： | 基于少量信息的几何变换（单应）估计是特征目标检测、注册、识别、三维重建等方面的关键步骤。在研究中发现，基于点与直线的直接的单应矩阵估计方法会导致出现较大误差的情况。针对这一情况介绍了一种基于点与直线对应的单应矩阵估计方法，在此基础之上根据观测数据分布情况，提出了怎样进行归一化处理，来提高算法的鲁棒性。
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| 关 键 词： | 单应矩阵 估计 鲁棒性 归一化 |
Homography estimation based on normalized direct linear transform |
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| YANG Li-feng. Homography estimation based on normalized direct linear transform[J]. Journal of Fuyang Teachers College:Natural Science, 2011, 28(4): 11-14 |
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| Authors: | YANG Li-feng |
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| Affiliation: | YANG Li-feng(School of Mathematics and Computational Science,Fuyang Teachers College,Fuyang Anhui 236041,China) |
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| Abstract: | Geometric transformation(homography) estimation from a few pieces of information is a necessary step in many feature-based object detection,registration,recognition,three-dimension reconstruction.In this paper we find that usual method of homography estimation based on points and lines may result in relatively big errors.Under such configurations,a new estimation method is proposed in this paper.Based on this method and distribution of the data observed,it also present how to do the prosess of normalization,in order to increase the robustness of calculation. |
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| Keywords: | homography matrix estimation robustness normalization |
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