In the study, two different methods of detecting the density of high vegetation with the help of lidar data are presented. The procedure for detecting individual tree canopies was developed in the software tool ArcMap 10.8.1. We selected the areas of 1 km2 covered by 4 different forest associations (Orno-Quercetum pubescentis, Querco petraeae-Fagetum, Abieti-Fagetum dinaricum, Vaccinio myrtilli-Pinetum sylvestris) and calculated the number of tree canopies. At the end, we compared the method of making a digital canopy model and the method of watershed segmentation. We eliminated inadequate points and areas and thus obtained the number of detected tree canopies within areas where forest had previously been determined. The methods have proved to be partially successful at detecting tree density, and fieldwork would be recommended for verification and to increase the accuracy of the results.
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