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Spatial resolution enhancement of low resolution thermal infrared image based on other high resolution band images

The Landsat TM sensor for thermal infrared measurements, Band 6, has lower resolution than those of other six bands. The authors propose a statistical approach to enhance the resolution of low resolution thermal infrared image by using other band images. They employ a multivariate normal distribution for the joint distribution of 7 band values. The values of Band 6 are predicted by the conditional expectations.