土地利用中线状地物在遥感影像中的变化规律  

Change patterns of linear features in remote sensing images in land use

作　　者：何亚娟[1] 王飞[1] 吴全[1] 汪庆发[1] 

机构地区：[1]农业部规划设计研究院,北京100125

出　　处：《农业工程学报》2008年第12期111-115,共5页Transactions of the Chinese Society of Agricultural Engineering

摘　　要：一般线状地物在遥感影像中的变化规律是目前国内外土地利用调查中非常活跃的研究领域。该研究在遥感影像的线状地物特征提取和面积量算的应用中可以提供重要依据和参考。采用数理统计回归分析的方法,通过对华北地区(京津冀三地)地面线状地物的105个随机样本的实际宽度量测、定位和图片采集,与其在landsatTM7遥感影像中的具体表现相结合,进行数理统计分析,得出一般线状地物在landsatTM7遥感影像中的变化规律。通过分析和比较,发现不同线状地物如道路和沟渠,由于在地面实际宽度和走向等的不同,其在landsatTM7遥感影像上变化规律是各不相同的;即使是相同实际宽度相同走向的同一类别线状地物其在landsatTM7遥感影像上影像变化也是有较大差异的,文章还进一步分析了造成变化的主要原因。The study on the change patterns of linear features in remote sensing imagery is a very active research field in land use survey worldwide.This research can provide important information and reference in liner feature extraction and area calculation.Statistical regression method was used to analyze 105 random samples collected in northern China（Beijing,Tianjin,and Hebei Province）.By comparing the measured width with the appearance of the corresponding liner features in Landsat TM7 image,the general change patterns of linear features in Landsat TM7 image can be obtained.From the analysis,it demonstrates that different liner features,such as road and ditch,exhibit different change patterns due to real difference in width and orientation.Even for the same type of linear features with the same width and orientation,their change patterns on TM image can be rather different.This paper analyzed the major causes contributing to the change patterns.

关 键 词：一般线状地物 遥感影像 变化规律 土地利用 

分 类 号：S127[农业科学—农业基础科学] TP753[自动化与计算机技术—检测技术与自动化装置]