The importance of remote sensing of the earth, because of their unique features (wide territorial coverage, efficiency, control of remote areas, using all-weather radar imaging, etc.) are for environmental control and monitoring in the areas of economic activities such as oil and gas, agriculture, forestry and water management, in the evaluation of human and human impact on the environment.

Keywords: Remote sensing of the earth, satellite, sensor, digital images, photographs, environmental monitoring, desertification

One of the main advantages of digital imaging - the ability to create highly informative models of studied objects and terrain , which is achieved by the use of vector graphics primitives , as in the image plane and in the space of the stereo . Digital photogrammetry is available for many sectors of the economy , as does not require expensive equipment. However, the accuracy of the decided tasks affects the fact that the digital photographs have lower depictive properties and informativeness, with their comparison with the photographs, furthermore for their working large computational power be required.  Under the contemporary conditions ground-based stereophotogrammetrical survey, with the smaller cost of operation, allows rapidly, and also in the regime “real time”, to obtain the large volumes of information about the object being studied .

Keywords: Photogrammetry, digital image, digital cameras, ground-based stereophotogrammetrical survey, the calibration