[1]朱良君,张光辉 *,李振炜,等.一种基于线结构光技术的细沟形态测量系统[J].山地学报,2015,(06):770-776.[doi:10.16089/j.cnki.1008-2786.000093]
 ZHU Liangjun,ZHANG Guanghui,LI Zhenwei,et al.A Laser Scanner System for Rill Morphology Measurement Basedon Linear Structured Light[J].Mountain Research,2015,(06):770-776.[doi:10.16089/j.cnki.1008-2786.000093]
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一种基于线结构光技术的细沟形态测量系统()
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《山地学报》[ISSN:1008-2186/CN:51-1516]

卷:
期数:
2015年06期
页码:
770-776
栏目:
山地信息技术
出版日期:
2015-12-01

文章信息/Info

Title:
A Laser Scanner System for Rill Morphology Measurement Based on Linear Structured Light
作者:
朱良君124张光辉13 *李振炜34耿 韧1
1.北京师范大学地理学与遥感科学学院,北京 100875; 2.中国科学院地理科学与资源研究所,北京100101; 3.中国科学院水利部水土保持研究所 黄土高原土壤侵蚀与旱地农业国家重点实验室,陕西 杨凌 712100; 4.中国科学院大学,北京 100049
Author(s):
ZHU Liangjun124 ZHANG Guanghui13 LI Zhenwei34 GENG Ren1
1. School of Geography, Beijing Normal University, Beijing 100875, China; 2. Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China; 3. State Key Laboratory of Soil Erosion and Dryland Farming on Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Science and Ministry of Water Resource, Yangling 712100,Shaanxi,China; 4. University of Chinese Academy of Sciences, Beijing 100049, China
关键词:
线结构光 激光扫描 精度评价 细沟侵蚀
Keywords:
Linear structured light laser scanner accuracy evaluation rill erosion
分类号:
TN249,S157
DOI:
10.16089/j.cnki.1008-2786.000093
文献标志码:
A
摘要:
细沟侵蚀形态的准确测量对解释坡面侵蚀产沙机理、促进侵蚀预报模型发展具有重要意义。基于线结构光技术在实验室可移动水槽上设计了方便组装拆卸、扫描配置灵活、亚毫米级精度的细沟侵蚀形态快速测量系统,摄像机-激光器夹角、扫描速度灵活可调。本研究中,有效测量范围为4.6 m×1.0 m,当摄像机-激光器夹角为25°、扫描速度为10 mm/s时,横断面方向、扫描方向、垂直方向实测分辨率平均分别为0.44 mm、0.50 mm、0.51 mm,横断面、垂直方向测量值绝对误差平均值分别为0.22 mm、0.16 mm,测量性能优于前人研究结果。同时,坡面细沟测量实例表明本系统测量结果准确、可靠,在土壤侵蚀相关领域中具有较高的实用价值。
Abstract:
The rapid and precise measurement of rill erosion morphology is extremely essential for understanding the hillslope hydrological processes and soil erosion modeling. Measuring surface microtopography is the first and foremost. This paper proposed and designed an easy assembling and flexible configuring laser scanner system with large effective area, sub-millimeter precision and quick data collecting. With the help of Halcon, Matlab and ArcGIS, we implemented the scanner with a 4.6 m×1.0 m scanning area, resolution and precisions better than 0.50 mm, which is better than previous research. For instance, the average relative error for height and width measurement are 0.61% and 0.56%, the average absolute error measured in cross and vertical direction are 0.03~0.51 mm and 0.10~0.88 mm with an average of 0.16 mm and 0.22 mm, respectively.(See Fig.3~5 for details). Besides, the compare with classic pin method implied an excellent accuracy and reliability with a linear fitting coefficient of 0.997(Eq.1)and 95.16% frequency percentage of relative error between ±20 mm. Further work may focus on the integration of data processing, quantification of rill morphological indexes and the application of the effect of sediment transportation on soil erosion.

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备注/Memo

备注/Memo:
收稿日期(Received date):2014-10-09; 修回日期(Accepted):2014-12-12。 基金项目(Foundation item):国家自然科学基金面上项目(41271287),中国科学院“百人计划”择优支持项目,地表过程与资源生态国家重点实验室自主研究项目“土壤侵蚀实验技术研究”(2012-ZY-02)联合资助。[This study was co-funded by General Program of National Natural Science Foundation of China(No. 41271287), the Hundred Talents Programme of the Chinese Academy of Sciences, and Independent Research Project of State Key Laboratory of Earth Surface Processes and Resource Ecology(No. 2012-ZY-02).] 作者简介(Biography):朱良君(1990-),男,山东滕州人,博士研究生,现从事GIS/RS与流域系统综合模拟研究。[Zhu Liangjun, Ph D Candidate, mainly engaged in GIS/RS and Integrating Simulation of Watershed System.] E-mail:zlj@lreis.ac.cn *通信作者(Corresponding author):张光辉(1969-),男,甘肃静宁人,教授,博士,博士生导师,主要从事土壤侵蚀与水土保持研究。[Zhang Guanghui, Ph D, Doctoral Supervisor, mainly engaged in Soil Erosion and Soil and Water Conservation.] E-mail:ghzhang@bnu.edu.cn
更新日期/Last Update: 1900-01-01