遥感影像双线性插值小波融合方法

在进行同一地物的具有高空间分辨率的全色影像和多光谱遥感图像融合时，应用双线性插值的方法对多光谱图像进行插值，使之等于全色图像的空间分辨率．在此基础上，对两幅影像分别实施小波变换，提出了小波系数的融合运算公式．同时，为了说明本方法的可靠性，将其与近邻插值的小波变换、色彩变换(IHS)、Brovery变换等融合算法作了对比．仿真结果表明，该算法在提高影像空间分辨率的同时，图像的光谱信息损失最少．不失为一种较为理想的融合算法．

Remote Sensing Image Fusion with Bilinear Resampling Wavelet Transform

When the remote sensing pan image of high spatial resolution and multi-spectrum image are fused, the multi-spectrum image is resampled with bilinear interpolation to be of the same spatial resolution as the pan image. Based on it, the two remote sensing images were transformed by wavelet. And their wavelet decomposition coefficients fusion formula was put forward. In order to verify the fusion way, it was compared with the nearest neighbor resampling wavelet transform, IHS(Intensity, Hue and Saturation) transform and Brovery transform fusion. The simulation shows that the proposed fusion method is of good performance of preserving the spectral and spatial resolutions for pan and multi-spectrum image, with the lowest loss of spectral information.