Research on the possibility of using DJI Matrice 300 RTK with a Zenmuse P1 camera and DJI Mavic 3 Enterprise in work related to obtaining geometric data about buildings for the purpose of updating real estate cadaster and topographical database records

surveying do not specify any technical conditions for performing
UAV flights and surveys. The choice of surveying technology and
ensuring the required accuracy is the responsibility of the licensed
surveyor. In this article, the Authors presented the results of an
experiment on the possibility of using data from a DJI Matrice 300
RTK with a Zenmuse P1 camera and a DJI Mavic 3 Enterprise to
carry out work related to obtaining building corners data for the
purposes of updating the real estate cadaster and topographical object
database. Experiments were carried out in the area of the Chrośla
cadastral district (Dębe Wielkie commune, Mińsk Mazowiecki
district, Masovian Voivodeship, Poland). The necessary surveying
activities included: measurement of GCPs using the GNSS-RTN
method in relation to the ASG-EUPOS reference stations network,
UAV photogrammetric surveys, field surveys of selected building
corners (tachymetric method and points of the surveying control
points network established for this task, using the GNSS-RTN
technique), and computational and analytical activities. Images
acquired from the DJI Mavic 3 Enterprise had a GSD of 2.85 cm, and
from the DJI Zenmuse P1– 1.5 cm. Selected building corners were
measured in the images using the space intersection method (104
corners covering the test area evenly), and the results were compared
with the field measurement (GNSS-RTN + tachymetry). The
obtained results indicated the possibility of using UAV technology as
a fully alternative to traditional geodetic surveys - meeting the
accuracy criteria resulting from applicable legal regulations (under
specific conditions).