| 基于单幅全向图像的空间水平直线定位新方法 |
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| 引用本文： | 娄静涛,王炜,张茂军,陈旺.基于单幅全向图像的空间水平直线定位新方法[J].计算机应用,2009,29(9). |
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| 作者姓名： | 娄静涛 王炜 张茂军 陈旺 |
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| 作者单位： | 国防科学技术大学,信息系统与管理学院,长沙,410073 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 研究了在没有先验知识的前提下,基于单幅全向图像定位空间水平直线的问题.在已有算法的基础上,分析和推导了空间水平直线在全向成像系统中的成像特点,指出基于直线在全向图中的两个像点即可重建该水平直线,并相应地提出了一种基于"主像点/非主像点"的空间水平直线定位算法.试验表明,在不同的像点提取精度下,对于不同空间水平直线,本方法均能取得较好结果.
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| 关 键 词： | 单幅图像 直线定位 三维重建 折反射全向成像 |
Novel method of space horizontal line localization based on single catadioptric omnidirectional image |
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| LOU Jing-tao,WANG Wei,ZHANG Mao-jun,CHEN Wang.Novel method of space horizontal line localization based on single catadioptric omnidirectional image[J].journal of Computer Applications,2009,29(9). |
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| Authors: | LOU Jing-tao WANG Wei ZHANG Mao-jun CHEN Wang |
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| Affiliation: | College of Information System and Management;National University of Defense Technology;Changsha Hunan 410073;China |
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| Abstract: | Space horizontal line localization without prior knowledge from a single omnidirectional image was exploited.Based on the existing approaches of straight line localization,the authors demonstrated that,for symmetric non-central catadioptric systems,the equation of a 3D horizontal line could be estimated using only two points extracted from a single image of the line by exploiting the characteristics of horizontal line image in catadioptric system,and meanwhile a horizontal line reconstruction algorithm base... |
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| Keywords: | single image horizontal line localization 3D reconstruction catadioptric omni-directional imaging |
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