摘要
DMSP/OLS数据能够观测到夜间灯光,因而被广泛应用于人类活动与城市扩展研究。本文以福州市为例,分析比较现有夜光数据的城区提取方法。通过实例分析,从阈值设定方面进行讨论,比较各方法的优缺点,可为夜间灯光数据在提取城市区域方面提供借鉴。
DMSP/OLS Nighttime Light can be observed at night lights, it is widely used in human activities and urban extraction ex- tension studies. In the paper, analyzing and comparison of existing methods about extract urban build -up area night light data. By tak- ing Fuzhou urban area as an example, the aspects of setting of threshold value to discuss, at the same time, comparing the advantages and disadvantages of each method by an example. To provide reference, researching the night light data in urban areas extraction.
作者
刘建良
赵国忱
倪愿
LIU Jian -liang ZHAO Guo -chen NI Yuan(Liaoning Technical University, Fuxin 123000, China Key Laboratory of Spatial Data Mining and Information Sharing of Ministry of Education, Fuzhou University, Fuzhou 350002, China)
出处
《测绘与空间地理信息》
2017年第9期175-178,181,共5页
Geomatics & Spatial Information Technology