基于SPOT-5遥感影像的城市信息自动提取技术研究  

Research on Automatic Extraction of Urban Information Based on SPOT- 5 Remote Sensing Images

作　　者：骆继花 王鸿燕[3] 高小明[3] 

机构地区：[1]兰州交通大学测绘地理信息学院,甘肃兰州730070 [2]甘肃省地理国情监测工程实验室,甘肃兰州730070 [3]国家测绘地理信息局卫星测绘应用中心,北京101300

出　　处：《测绘与空间地理信息》2015年第10期28-30,共3页Geomatics & Spatial Information Technology

基　　金：国家自然科学基金(41271394);后续光学测绘卫星应用指标论证与关键技术(201412007);丝绸之路经济带重要地理要素监测技术及示范(201512027)资助

摘　　要：城市信息的提取是城市动态监测和分析的基础,而城市动态监测对社会发展和人类生活具有重要意义。本文基于三峡地区的SPOT-5遥感影像,以城市绿地和建筑物为研究对象,用ENVI FX影像处理软件,对实验区的绿地和建筑物进行多尺度影像分割信息提取。结果表明,采用多尺度分割技术提取高分辨率影像中地物的提取精度更高,并有效地避免了"椒盐现象"。Extraction of city information is the basis of dynamic monitoring and analysis of the city, while dynamic monitoring and analysis of the city has an important significance for social development and human life. In text, Based on SPOT - 5 remote sensing images of the Three Gorges region, For the study by urban green information and buildings information, with ENVI FX image processing software as a platform, extraction on green information and building information of experimental area by multi - scale image segmentation technology. In extraction process, first of all, building classification system of green information and building information based on Satellite imaging features of two objects; secondly, extracting information by set the scale parameter of multi - scale segmentation ; and finally, comparison on the extraction results of multi - scale segmentation between of traditional classification based on experimental area. The results show that the multi - scale image segmentation technology has higher precision results using a high - resolution to extract surface features. The most important is, It effectively avoid the ＂salt and pepper phenomenon＂.

关 键 词：SPOT-5 城市信息 ENVI FX 提取 多尺度分割 

分 类 号：P231[天文地球—摄影测量与遥感]