Abstract
We present a brief overview of recent image resolution enhancement algorithms with emphasis on remote sensing applications. Because resolution may have different meanings, we emphasize that our focus in this paper is on spatial, spectral, and temporal resolution enhancement algorithms. We will discuss and review recent and representative algorithms in enhancing spatial resolution, spectral resolution, spatial-spectral resolution, and spatio-temporal resolution of remote sensing images. Several interesting applications related to the fusion of Landsat and MODIS images, the fusion of color and hyperspectral images, and the fusion of Mars rover images will be presented. Finally, some future directions in this research area will be highlighted.
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