Correlation of thermal satellite image data to generate high spatial resolution heatmaps

摘要

The present invention relates to a method and apparatus for generating a thermal map of a region, the thermal map being generated by combining two thermal images with different characteristics, both thermal images containing pixels associated with the region and recorded by satellite. ing. The two thermal images are recorded at different times using different recording devices. Further, the radiation measurement accuracy of the first thermal image is higher than the radiation measurement accuracy of the second thermal image, and the spatial resolution of the second thermal image is higher than the spatial resolution of the first thermal image. The two thermal images are used to determine the measured offset of the first pixel group that belongs to the second thermal image and is spatially related to the region, and then the region that belongs to the second thermal image. The corrected absolute measurements of the pixels spatially related to are determined. Next, an accurate thermal map of the area is created based on this. The present invention also relates to methods for determining the time series of thermal maps and computer program products for carrying out the described methods.