地理空间信息2024，Vol.22Issue(3)：34-37,4.
利用珞珈一号提取城市建成区的方法对比分析
Comparative Analysis of Urban Built-up Area Extraction Methods Based on Luojia1-01
摘要
Abstract
Taking Chengdu City for example,we used nighttime light data,VANUI index and Luojia1-01&POI index three methods to extract the built-up area in 2018,and used the overall accuracy and Kappa coefficient to compare the accuracy of three methods.The results show that using alone luojia1-01 nighttime light data extraction will cause the problem of incorrect information extraction.The built-up area extracted by VANUI has better performance in interior and boundary details,but there are many pores and broken map spots.Luojia1-01&POI index has the best display effect and the highest accuracy when extracting the built-up area.This results further confirm the high precision and reliability of POI data combined with nighttime light data to extract built-up areas.关键词
夜间灯光/城市建成区提取/Luojia1-01/VANUI/POIKey words
nighttime light/urban built-up area extraction/Luojia1-01/VANUI/POI分类
天文与地球科学引用本文复制引用
陆双,杨柳..利用珞珈一号提取城市建成区的方法对比分析[J].地理空间信息,2024,22(3):34-37,4.基金项目
国家重点基础研究发展计划资助项目(2014CB238906-01) （2014CB238906-01）
中央高校基本科研基金资助项目(2021YJSDC10). （2021YJSDC10）
