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基于城镇指数提取城镇用地信息的方法研究 被引量:3

A Method of Extracting Urban Land-use Information Based on Urban Index
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摘要 基于TM影像,结合城市用地特点和热辐射信息,提出一个新型的城镇指数(UI=B6×B5/B4),利用UI对南京及其周围地区的城镇用地信息进行了提取,并用混淆矩阵方法对提取的城市用地信息进行了精度评价。研究结果表明,城镇指数提取城镇用地信息是一种有效、可行的方法,而且具有很高的精确度。 Based on TM images and the characteristics of urban land-use and the information of thermal radiance,this paper presents a new urban index(UI=B6×B5/B4) and extracts the urban land-use information of Nanjing city and its surroundings using UI.Then the precision of the extracted land-use information is tested with confusion matrix.The results indicate that using UI is an effective and feasible method of extracting the urban land-use information,and shows a high precision.
出处 《遥感信息》 CSCD 2006年第4期27-29,共3页 Remote Sensing Information
关键词 遥感 TM 城镇指数 UI 混淆矩阵 remote sensing TM urban index UI confusion matrix
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