ORTHOPHOTOMAP CREATION TECHNOLOGIES AND ACCURACY REQUIREMENTS: PHOTOGRAMMETRY, ORTHORECTIFICATION, QUALITY CONTROL

• Khakimova Kamola Rakhimjonovna

  Fergana State Technical University

  Author

• Rozimatova Mokhinur Mukhammadjon's daughter

  Fergana State Technical University, Master's Student

  Author

This article scientifically analyzes modern technologies for creating orthophotos and their accuracy requirements using the example of the Fergana city region. The study consistently describes the stages of photogrammetric processing of aerial photographs taken on the basis of UAV (drone), creation of digital relief models (DTM/DSM), orthorectification and formation of the final orthophoto product. When assessing the quality of the orthophoto, planimetric accuracy indicators (RMSE) were calculated based on geodetic control points (GCP) and independent control points (CP), and radiometric and topological compatibility were analyzed. The results obtained substantiated the possibilities of using orthophotos in urban conditions in land cadastre and urban planning at a scale of 1:2000. The results of the study serve to improve the process of creating orthophotos, strengthen quality control and develop scientific and practical recommendations for reliable use in geoinformation systems.

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