| 利用LiDAR系统对飞机残骸进行分析的新方法 |
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| 引用本文： | 刘慧丽,孙华波,赵海盟,罗博仁,钟民主,晏磊.利用LiDAR系统对飞机残骸进行分析的新方法[J].影像科学与光化学,2015,33(3):224-229. |
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| 作者姓名： | 刘慧丽 孙华波 赵海盟 罗博仁 钟民主 晏磊 |
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| 作者单位： | 1. 北京大学 空间信息集成与3S工程应用北京市重点实验室, 北京 100871;
2. 中国民航科学技术研究院 航空安全技术实验室, 北京 100028 |
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| 基金项目： | 民航安全能力建设项目，博士点基金:基于光谱参量耦合的光谱定标机理及其精度评价方法研究，基于云计算的仿生偏振导航模型研究及精度分析 |
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| 摘 要： | 飞机失事的事故率较低,但损失一般较为严重.对飞机残骸现场的有效记录,能够帮助我们了解失事场景,并进行后续分析,但国内外相关研究较少.本文利用一套LiDAR系统对事故现场进行测绘和三维尺度图像信息保存.并结合改进的ICP算法实现了更高精度的点云拼接,从而对失事前后的同一部件进行对比分析,以确定其受力和变形情况,进而帮助确定失事原因.与其他飞机失事场景记录方法相比,该系统三维重现效果更好.
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| 关 键 词： | 飞机残骸 事故 LiDAR系统 ICP算法 PFH算子 |
| 收稿时间： | 2014-07-10 |
A New Method on Analyzing the Aircraft Wreckage with LiDAR Systems |
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| LIU Huili,SUN Huabo,ZHAO Haimeng,LUO Boren,ZHONG Minzhu,YAN Lei.A New Method on Analyzing the Aircraft Wreckage with LiDAR Systems[J].Imaging Science and Photochemistry,2015,33(3):224-229. |
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| Authors: | LIU Huili SUN Huabo ZHAO Haimeng LUO Boren ZHONG Minzhu YAN Lei |
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| Institution: | 1. Beijing Key Lab of Spatial Information Integration & Its Applications, Institute of Remote Sensing & Geographic Information System, Peking University, Beijing 100871, P.R.China;
2. Laboratory of Aviation Safety and Technology, China Academy of Civil Aviation Science and Technology, Beijing 100028, P.R.China |
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| Abstract: | Aircraft accidents' rate is low, but the loss is generally serious when it happens. Effect records of the crash site and the wreckage can help follow-up analysis, rebuild the accident scene. But few studies can be found nowadays. In this paper, a LiDAR system is used to map and save the three-dimensional information of the accident scene. Combined with improved ICP algorithm, the point-clouds of aircraft and its wreckage can be registered accurately to analyze the deformation and forces of the components by comparison, which helps to find the cause of the crash. Compared with other methods or systems, this system is of higher accuracy, and achieves better results in three-dimensional reconstruction. |
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| Keywords: | wreckage accident LiDAR ICP algorithm PFH operator |
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