基于SPOT影像的珠江口磨刀门岸线提取方法  

Extracting Shorelines Method in Modaomen River of Zhujiang Estuary Based on SPOT Image

作　　者：李伦[1] 古陈 张庭荣[3] 庞家锋 刘长斌 

机构地区：[1]广东省水利水电技术中心,广东广州510635 [2]广州奥格智能科技有限公司,广东广州510663 [3]广东省水利水电科学研究院,广东广州510635

出　　处：《广东水利水电》2017年第10期36-39,共4页Guangdong Water Resources and Hydropower

基　　金：广东省水利科技创新项目(编号:2012-06)

摘　　要：岸线提取是开展河岸资源管理的前提,对于研究岸线时空演变特征具有十分重要的意义,能为岸线资源开发及保护提供科学的决策支持。该文以2013年SPOT遥感影像为数据源,选取珠江口磨刀门水道为研究区,在运用归一化水体指数算法(NDWI)进行水陆分离的基础上,提出一种基于面积大小筛选的河道岸线提取方法。研究结果表明:通过面积筛选法提取的岸线结果与实际岸线较为符合,该方法能较好地应用于珠江口磨刀门水道的河道岸线提取。Shorelines Extraction is the precondition of riverbank management resources,which is important for studying Spatio -temporal characteristics of shorelines evolution,also supporting the development and protection of way. SPOT image in 2019 was used to extract shorelines,and Modaomen River of Zhujiang Estuary was took as the experimentation area. NDWI method is employed in this study to divide the water fromthe land, and then Area - Screening Method is used to extract shorelines. The result shows that： the shorelines extracted from SPOT image are matched with actual shorelines. Method is suitable for extracting shorelines in Modaomen River Mouth.

关 键 词：岸线提取 SPOT影像 NDWI 面积筛选法 

分 类 号：TP79[自动化与计算机技术—检测技术与自动化装置] P237.1[自动化与计算机技术—控制科学与工程]