摘要
首次利用ENVISAT ASAR交叉极化模式数据与中巴地球资源卫星02星(CBERS-02)CCD数据进行融合,对融合后的图像进行分析和讨论。通过比较IHS变换融合、主成分分析融合和小波变换融合方法发现,采用IHS变换融合产生的融合图具有更好的目视判读效果,但是由于ASAR数据受到相干斑噪声的影响,在滤波去噪后,融合图的空间分辨率变低。另外,该融合图包含了地物的VV极化和HH极化后向散射特征,使地物结构形态、复介电常数和地物的光谱信息等重要的地物参数信息都包含在融合图中,增强了区别地物的能力,就农作物的目视解译和分类而言,该融合图精度得到了较大提高。
引文
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