Fusion of airborne synthetic aperture radiometer and Landsat ETM+ images

Unlike optical images, the microwave radiometer image contains information of ground brightness temperature. To integrate some features of microwave radiometer images and optical images, some transform schemes, such as intensity-hue-saturation (IHS), principal component analysis (PCA) and wavelet transform (WT), were applied to merge the airborne synthetic aperture radiometer images and Landsat ETM+ images. The experiments show that the wavelet based transform method shows the best potential among the three methods.