图像融合。图像融合是指把不同传感器获得的同一景物的图像合成一张图像，以克服单一图像在焦距、曝光、光谱和空间分辨率的等方面的存在的局限性，达到提高质量的目的。-image fusion. Image Fusion is different sensors in the same features images of a synthetic image, to overcome the image of a single focus, exposure, spectral and spatial resolution of the existence of such limitations, and achieve quality.