基于滤波器组的遥感图像融合方法及其性能分析研究

提出了一种基于滤波器组的图像融合方法，用以融合高空间分辨率全色图像和低空间分辨率的多光谱图像．在高空间分辨率全色图像经过多通道滤波器组分解的基础上，用多光谱图像直接替换全色图像低频子图像的方式进行融合处理；最后对替代后的子图像进行滤波器组重构得到融合后的图像．实验结果表明，通过调整滤波器组的通道个数，该方法能够使融合图像中空间信息和多光谱信息获得更好地折衷．

IMAGE FUSION ALGORITHM BASED ON FILTERS BANKS AND PERFORMANCE STUDY FOR REMOTING SENSING APPLICATION

An image fusion method was proposed based on the filter banks for merging a high-resolution panchromatic image with a low-resolution multispectral image. The panchromatic image was first decomposed into sub-images by using analysis filters and then the low-frequency sub-image of the panchromatic image was directly substituted by the multispectral image to merge a high-resolution panchromatic image with a low-resolution multispectral image. Finally, the fused image was reconstructed by using the synthesis filters. Experimental results indicate that the proposed approach can obtain the better trade-off between the spectral information of low- resolution multispectral sensor and the spatial properties of high-resolution panchromatic sensor by adjusting the channel number.