应用SPOT5影像进行农居点调查的可行性研究  

Study on feasibility of village survey based on SPOT5 image.

作　　者：丁晓东[1] 徐豪[1] 俞志强[2] 章仲楚[1] 王珂[1] 

机构地区：[1]浙江大学农业遥感与信息技术应用研究所,浙江杭州310029 [2]浙江省地理信息中心,浙江杭州310012

出　　处：《浙江大学学报（农业与生命科学版）》2008年第1期114-118,共5页Journal of Zhejiang University:Agriculture and Life Sciences

基　　金：浙江省科技厅科技计划资助项目(2004C33089)

摘　　要：研究应用SPOT5影像进行农居点调查的可行性及其精度.以浙江省桐乡市龙翔街道为例,以SPOT5影像为解译底图,对龙翔街道范围的农居点进行信息提取矢量化,获取1∶1万农居点调查矢量图斑,并以同期的土地利用航测结果为比较真值,从各种角度进行数据分析.研究结果表明,图斑属性解译精度为95%左右,图斑平均相对面积精度在94%左右;图斑大小对农居点面积精度有影响,500 m2以上图斑的面积提取精度可以达到85%以上.说明应用SPOT5影像对农居点进行调查是可行的.Feasibility and precision of village survey based on the SPOT5 image were discussed. One case study was taken in Longxiang section of Tongxiang city of Zhejiang Province. The village vector data of Longxiang at 1 ： 10000 scale was obtained from the SPOT5 image, and the patch area precision was analyzed with the synchronous aerial survey data. The results show that the patch interpretation precision of property was about 95 %, the extracted patch area precision was above 85 % when the patch area is above 500 m^2, and the average extracted patch area precision was about 94%. These results indicate it＇s feasible to do village survey using SPOT5 image.

关 键 词：SPOT5影像 农居点调查 面积精度 

分 类 号：TP79[自动化与计算机技术—检测技术与自动化装置]