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 针对IHS融合法的融合影像相对于原多光谱影像光谱扭曲严重、小波变换融合法运算量大的缺点,依据影像成像时传感器像素间的对应关系,提出应用遥感影像空间分辨率比值关系对影像进行分块,采用离散余弦变换与IHS变换相结合的融合方法进行多光谱影像与全色影像融合,以提高遥感影像的应用能力。仿真实验表明,该方法融合结果的光谱保持性与小波变换方法相近,均优于IHS变换融合影像,对全色影像空间信息集成能力稍弱,但计算效率明显改善,适合于对大数据量的遥感影像融合。 更多还原

【Abstract】 To decrease the spectral distortion in the fusion of multi-spectral images and panchromatic image using intensity-hue-saturation(IHS) transform and the complexity using wavelet transform,a method based on discrete cosine transform(DCT) is proposed in this paper.According to correspondence relation of pixel block to pixel block,remote sensing images are segmented via the spatial resolution ratio,then using DCT+IHS to fuse them.The fusion results show that the capacity of preserving spectral prope...