Вплив роздільної здатності матриць цифрових фотокамер на точність топографічного зображення

Based on the principles of using the aerial photography method for land mapping, the most influential factors on its cost are determined in the work. The presented article is of a review and informational nature and presents some studies on the influence of aerial photography equipment on the quality of aerial photographs. The use of modern aerial photography equipment increases the accuracy and quality of images for the production of digital terrain models, relief, orthophotomaps and digital topographic maps and plans. Aerial photography data provides a perspective for solving various problems in the field of geodesy, land management and construction. It should be noted that the quality of the images depends mainly on the resolution of the camera and the device on which they are displayed.  The problem with the aerial photography method is its cost, which depends on the parameters of aerial photography, technical characteristics of cameras, software and processing time of aerial photographs. Reducing the cost of aerial photography is currently the most important issue for the customer. The authors found that the main factor influencing the cost of aerial photography is the resolution of the camera. The aim of the work is to determine the optimal types of cameras to reduce the cost of aerial photography without compromising the quality of the digital images. A review of previous publications on the problem has shown that most studies have been devoted to the accuracy of raster images for solving various tasks, and the issue of the cost of aerial photography and the factors affecting it have not been considered at all. The cost of aerial photography is often a source of conflict between the client and the provider. Based on this, we conclude that in the design of aerial photography works, it is necessary to take a practical approach to the choice of the optimal type and resolution of cameras to obtain high quality digital images. The resolution of images must meet legal requirements and ensure the accuracy of digital topographic maps at a standard range of scales. In this way, the resolution of cameras can be combined with quality of images and cost of work, and a customer can adjust a technical task according to their requirements. Technical parameters of a task at the expense of raster image resolution, accuracy and compliance with standards change depending on the tasks set.