基于CBERS-02B星CCD数据土地利用变化信息提取方法研究

CBERS-02B星可同时获取高、中、低三种空间分辨率遥感数据,极大地拓展了其应用领域与潜力,建立以CBERS-02B星数据特点为主的应用技术方法和应用技术流程,将快速推进CBERS-02B在资源调查监测领域应用。本文针对CBERS-02B星CCD数据特性,开展了土地利用变化信息提取方法试验,结果表明CBERS-02B星CCD数据可用于1∶10万土地利用宏观监测,波段比值法变化信息提取效果较好,自动提取和人机交互修正相结合既适合当前技术水平也能满足应用需求。

Landuse Change Detection Based on CCD Data of CBERS-02B

CBERS-02B can acquire different spatial resolution and multi-spectral data which improves its application ability greatly. In order to select optimum change detecting method, we extracted land change information from two temporal CCD data by several normal algorithms. The result shows that the band ratio is more suitable to extract majority land change information of CCD data and manual interpretation is necessary in order to gain satisfactory result.