激光点云数据的输电通道淹没分析Analysis of transmission channel inundation based on laser point cloud data
苟丙荣,刘正军,杨树文,陈一铭
摘要(Abstract)：
针对从数字高程模型(DEM)数据中提取有源淹没范围的算法实现中,种子蔓延算法的递归深度太深,在给定洪水水位条件下容易堆栈溢出的缺点。该文提出了两次遍历的实现方法解决了上述问题。利用直升机激光三维扫描技术获取到输电线路的点云数据,经过点云预处理、分离地面点、栅格化处理等操作,得到了高精度DEM数据。利用DEM数据的特点,通过ArcGIS Engine建立了快速、高效的洪水淹没深度识别模型和有源淹没范围提取模型。可用于模拟重现淹没范围,为分析输电线路灾情特征、制定应急处置方案提供决策支持。
关键词(KeyWords)： DEM;点云;淹没分析;有源淹没;种子蔓延法
基金项目(Foundation): 国家重点研发计划项目(2018YFB0504504);; 国家自然科学基金重点项目(41730107);; 中国测绘科学研究院基本科研业务费资助项目(AR1920);; 兰州交通大学优秀平台支持项目(201806)
作者(Author): 苟丙荣,刘正军,杨树文,陈一铭
DOI: 10.16251/j.cnki.1009-2307.2021.08.012
参考文献(References)：
- [1]刘小生，陈英俊，黄玉生．基于GIS技术的洪水淹没区确定[J]．测绘科学，2007,32(5):136-137.(LIUXiaosheng,CHEN Yingjun,HUANG Yusheng.The ascertainment of flood area based on GIS[J].Science of Surveying and Mapping,2007,32(5):136-137．）
- [2]毕京佳．基于遥感和GIS的洪水淹没范围估测与模拟研究[D]．青岛：中国科学院海洋所，2016.(BI Jingjia.Estimation and simulation of flood inundation using remote sensing and GIS[D].Qingdao:Institute of Oceanology,Chinese Academy of Sciences,2016．）
- [3]唐震，李勇，茅昌平，等．基于ArcGIS Engine的洪水淹没模拟系统构建[J]．人民长江，2016,47(S2):1-3.(TANG Zhen,LI Yong,MAO Changping,et al.Construction of flood simulation system based on ArcGIS Engine[J].Yangtze River,2016,47(S2):1-3．）
- [4]高伟，沈秋，李梦璠，等．基于多源遥感数据的洪涝淹没范围时序监测分析[J]．测绘与空间地理信息，2018,41(7):8-10.(GAO Wei,SHEN Qiu,LI Mengfan,et al.Analysis of time-serial monitoring of flood extent based on multi-source remote sensing data[J].Geomatics&Spatial Information Technology,2018,41(7):8-10．）
- [5]MEHNERT A,JACKWAY P.An improved seeded region growing algorithm[J].Pattern Recognition Letters,1997,18(10):1065-1071．
- [6]FAN J P,ZENG G H,BODY M,et al.Seeded region growing:an extensive and comparative study[J].Pattern Recognition Letters,2005,26(8):1139-1156．
- [7]SHIH F Y,CHENG S X.Automatic seeded region growing for color image segmentation[J].Image and Vision Computing,2005,23(10):877-886．
- [8]刘仁义，刘南．一种基于数字高程模型DEM的淹没区灾害评估方法[J]．中国图象图形学报，2001,6(2):118-122.(LIU Renyi,LIU Nan.A new DEM-based method for flood area calculation and damage evaluation[J].Journal of Image and Graphics,2001,6(2):118-122．）
- [9]丁志雄，李纪人，李琳，等．对洪水淹没分析的若干思考[C]∥中国水利学会2003学术年会论文集．北京：中国三峡出版社，2003:398-404.(DING Zhixiong,LIJiren,LI Lin,et al.Some thoughts on flood inundation analysis[C]∥Proceedings of 2003Annual Meeting of Chinese Hydraulic Engineering Society.Beijing:China Three Gorges Press,2003:398-404．）
- [10]朱庆，田一翔，张叶廷．从规则格网DEM自动提取汇水区域及其子区域的方法[J]．测绘学报，2005,34(2):129-133.(ZHU Qing,TIAN Yixiang,ZHANG Yeting.The extraction of catchment and subcatchment from regular grid DEMs[J].Acta Geodaetica et Cartographic Sinica,2005,34(2):129-133．）
- [11]赵秀英，王耀强，李洪玉，等．基于DEM的有源淹没算法设计与实现：以种子蔓延法为例[J]．科技导报，2012,30(8):61-64.(ZHAO Xiuying,WANG Yaoqiang,LI Hongyu,et al.Design and implementation of seed spread algorithm for calculations of source flood submerge area based on DEM[J].Science&Technology Review,2012,30(8):61-64．）
- [12]沈定涛，王结臣，张煜，等．一种面向海量数字高程模型数据的洪水淹没区快速生成算法[J]．测绘学报，2014,43(6):645-652.(SHEN Dingtao,WANG Jiechen,ZHANG Yu,et al.A quick flood inundation algorithm based on massive DEM data[J].Acta Geodaetica et Cartographica Sinica,2014,43(6):645-652．）
- [13]沈定涛．基于机载LiDAR数据的洞庭湖蓄滞洪区洪水灾害风险评估技术与方法研究[D]．南京：南京大学，2017.(SHEN Dingtao.Study on flood risk assessment technology and method of Dongting lake flood storage and detention basin based on airborne LiDAR data[D].Nanjing:Nanjing University,2017．）
- [14]董静．融合多特征的机载LiDAR点云数据滤波方法研究[D]．阜新：辽宁工程技术大学，2011.(DONG Jing.Airborne LiDAR filtering by fusing multi-features[D].Fuxin:Liaoning Technical University,2011．）
- [15]叶立志．机载LiDAR与影像密集匹配点云数据的滤波方法研究[D]．武汉：武汉大学，2016.(YE Lizhi.Intelligent terrain extraction from airborne LiDAR and dense stereo matching point clouds[D].Wuhan:Wuhan University,2016．）
- [16]释小松，程英蕾，赵中阳，等．基于三角网滤波和支持向量机的点云分类算法[J]．激光与光电子学进展，2019,56(16):32-40.(SHI Xiaosong,CHENG Yinglei,ZHAOZhongyang,et al.Point cloud classification algorithm based on IPTD and SVM[J].Laser&Optoelectronics Progress,2019,56(16):32-40．）
- [17]朱庆，赵杰，钟正，等．基于规则格网DEM的地形特征提取算法[J]．测绘学报，2004,33(1):77-82.(ZHU Qing,ZHAO Jie,ZHONG Zheng,et al.The extraction of topographic patterns based on regular grid DEMs[J].Acta Geodaetica et Cartographic Sinica,2004,33(1):77-82．）
- [18]丁雨淋，杜志强，朱庆，等．洪水淹没分析中的自适应逐点水位修正算法[J]．测绘学报，2013,42(4):546-553.(DING Yulin,DU Zhiqiang,ZHU Qing,et al.Adaptive water level correction algorithm for flooding analysis[J].Acta Geodaetica et Cartographica Sinica,2013,42(4):546-553．）
- [19]MOORHEAD K K,BRINSON M M.Response of wetlands to rising sea level in the lower coastal plain of north Carolina[J].Ecological Applications,1995,5(1):261-271．
- [20]TITUS J G,RICHMAN C.Maps of lands vulnerable to sea level rise:modeled elevations along the US Atlantic and Gulf coasts[J].Climate Research,2001,18:205-228．
- [21]陈静，袁思佳，曾方敏．三维虚拟地球中有源洪水淹没分析算法[J]．武汉大学学报（信息科学版），2014,39(4):492-495.(CHEN Jing,YUAN Sijia,ZENG Fangmin.Virtual globe-based source flood submergence analysis algorithm[J].Geomatics and Information Science of Wuhan University,2014,39(4):492-495.)