苏州科技学院学报（自然科学版）Issue(4)：67-71,81,6.
国际空间站夜间影像的城市化信息提取
Urblization information extraction from night-time images of international space station
摘要
Abstract
Based on the night-time astronaut images taken in the international space station on March 27 ,2012 by the Expedition 30 crew over Shanghai and Suzhou,we extracted and analyzed the land surface night light brightness,distribution and extent from the images using geographic information system. Furthermore,we explored the relationship between the image data and urbanization. The results show that the areas of night light coincide with those of maturely built-up cities;the average outdoor lighting brightness and electric energy consumption of per unit area in different cities are almost equal; the population in four cities have good linear relation with their lighting areas;the population density can be divided into two levels by the scales of city lighting areas:about 7 000 persons/km2 in medium and small cities and about 12 000 persons/km2 in large cities;the expansion direc-tion and ranges of the cities in the coming years can be estimated by a series of ribbon-like road lighting distri-bution. As night-time images contain useful information of urbanization ,night-time remote sensing image re-searches can play an important role in the upcoming new urbanization of China.关键词
城市/灯光/影像/国际空间站Key words
city/lighting/remote sensing/international space station分类
信息技术与安全科学引用本文复制引用
王跃,李广斌,伍燕南..国际空间站夜间影像的城市化信息提取[J].苏州科技学院学报（自然科学版）,2014,(4):67-71,81,6.基金项目
国家自然科学基金资助项目 （）
