Abstract
The issues of using multispectral imaging in remote sensing of the Earth, both using satellite images and using unmanned aerial vehicles (UAVs), are discussed. The use of multispectral images for assessing reforestation, the effectiveness of herbicide use, reconstruction of archaeological sites, environmental monitoring of the surface of reservoirs by monitoring the extent of the spread of blue-green algae, and recognition of the road network in forestry is described. The feasibility of using UAVs to survey individual areas of the terrain instead of obtaining images from satellites is assessed. The results of increasing the information content of multispectral images obtained using various processing options are presented. Based on the results of the analytical review, trends in the development of methods for improving the visual quality of multispectral images obtained during monitoring of the earth's surface are formulated. The disadvantages of the considered methods for increasing the information content of multispectral images are indicated, and improvements are proposed that can improve the methods used.
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