多光谱遥感影像湿地水体提取方法综述

Review on the Methods for Water Extraction of Wetland from Multi-spectral Remote Sensing Image

湿地是陆地与水域交错而形成的水陆过渡地带,它对环境和社会经济的可持续发展有着举足轻重的作用,而这些作用的发挥必需有一定的水域为基础。鉴于多光谱遥感影像较高的定位精度和相对较低的价格,一直是湿地调查、研究与保护的重要数据源。首先探讨了水体特征提取过程,然后列举了具有代表性的提取方法,并对各个方法的特点进行了分析,总结了每种方法的优缺点和应用范围,最后阐述了湿地水体提取还需解决的问题,并对其研究前景进行了展望。

Wetland is a kind of eco-system which consists of interlaced waters and dry lands. It played an important role what must be based on some certain area of water in the environment and sustainable socio-economic development. In view of the high accuracy of multi spectral remote sensing image and relatively low price, it has been an important data source for wetland investigation, research and protection. This paper first describes the general approaches of water feature extraction, re-views the state-of-the-art of the wetland type water feature extraction methods, and summarized the advantages and disadvantages of each method and application scope. Finally, it expatiates the problem that need to resolve of water extraction from remote sensing image, and research issues are recommended for future studies.