基于DMSP/OLS夜间灯光数据进行提取的实证研究——以福州为例

摘要

DMSP/OLS Nighttime Light.can be observed at night lights,it is widely used in human activities and urban extraction extension studies.In the paper,analyzing and comparison of existing methods about extract urban build-up area night light data.By taking 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.%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.