基于CBERS-02和Landsat TM数据的土地利用调查对比研究

Comparative Study on the Land Use Investigation Based on the Data of CBERS-02 and Landsat TM

以江西省抚州市崇仁县为研究区域,利用ERDAS IMAGE软件,通过对研究区CBERS-02和Landsat TM遥感影像数据进行图像格式转换、波段配准、波段叠加、几何校正、剪裁研究子区等预处理,再通过目视解译和实地调查确定遥感土地利用类型和选取监督分类样本,最后分析了CBERS和TM数据监督分类效果,并进行了土地调查精度对比分析。研究表明,CBERS-02数据在一定程度上可以代替TM数据进行中等比例尺的土地利用调查,但在使用CB ERS-02数据时要对各波段间进行几何校正。

Taking Chongren County of Jiangxi Province as the study area and using ERDAS IMAGE software, this paper preprocesses CBERS-02 and Landsat TM remote sensing IMAGE data of the study area, including IMAGE format conversion, band registration, band overlapping, geometric correction, cutting and so on. Through visual in- terpretation and field investigation, the remote sensing land-use types and supervised classification samples are de- termined. Finally, the paper analyzes the supervised classification results of CBERS and TM data, and land sur- vey precision. The research shows that, to a certain extent, CBERS-02 data can replace TM data in medium scale of land use investigation, but it＇ s necessary to carry out geometric correction of each band in the use of CBERS- 02 data.