METHOD OF DETERMINING PARAMETERS OF FOREST Russian patent published in 2024 - IPC G01N21/25 G06V20/17 

FIELD: computer engineering.

SUBSTANCE: invention relates to computer engineering, namely to technology of determining parameters of forest by means of its preliminary survey from unmanned aerial vehicles. Method for determining parameters of a forest massif, in which a forest area is surveyed from an unmanned aircraft using a multispectral camera with at least four channels and a digital RGB camera, followed by obtaining images of the forest area from the multispectral camera and images of the forest area from the digital RGB camera, information on images of a forest area, photogrammetric processing of images is carried out with subsequent construction of an orthophotomap and a point cloud on the basis of images from a multispectral camera for each of their channels and obtaining an orthophotomap and a point cloud based on the images from the digital RGB camera. Based on the point cloud constructed from the RGB images, a digital terrain model and a digital elevation model are constructed, the heights of the tree stand are corrected relative to the relief features, individual trees are searched, a set of features of a specific tree is supplied to the input of a pre-trained machine learning model for tree species prediction, followed by obtaining a set of tops and crowns of trees with assigned class marks indicating the tree species.

EFFECT: automation of the process of determining parameters of a forest massif, such as species composition and other characteristics, including assessment of timber stock, as well as high accuracy of their determination based on data from the aerial photographic surveying.

14 cl, 7 dwg