Individual tree crown delineation from high-resolution UAV images in broadleaf forest
نویسندگان
چکیده
منابع مشابه
Automated tree crown detection and delineation in high-resolution digital camera imagery of coniferous forest regeneration
Ensuring successful forest regeneration requires an effective monitoring program to collect information regarding the status of young crop trees and nearby competing vegetation. Current field-based assessment methodology provides the needed information, but is costly, and therefore assessment frequency is low. This often allows undesirable forest structures to develop that do not coincide with ...
متن کاملIndividual Tree-Crown Delineation and Treetop Detection in High-Spatial-Resolution Aerial Imagery
The cost of forest sampling can be reduced substantially by the ability to estimate forest and tree parameters directly from aerial photographs. However, in order to do so it is necessary to be able to accurately identify individual treetops and then to define the region in the vicinity of the treetop that encompasses the crown extent. These two steps commonly have been treated independently. I...
متن کاملIndividual Tree Crown Delineation from Airborne Laser Scanning for Diseased Larch Forest Stands
Airborne laser scanning (ALS) can be utilised to derive canopy height models (CHMs) for individual tree crown (ITC) delineation. In the case of forest areas subject to defoliation and dieback as a result of disease, increased irregularities across the canopy can add complications to the segmentation of ITCs. Research has yet to address this issue in order to suggest appropriate techniques to ap...
متن کاملTree Crown Delineation from High Resolution Airborne Lidar Based on Densities of High Points
Tree detection and tree crown delineation from Airborne LiDAR has been focusing mostly on utilizing the canopy height model (CHM). This paper presents a method for individual tree crown delineation based on densities of high points (DHP) from the high resolution Airborne LiDAR. The DHP method relies on the fact that the density of received laser pulses above a certain height is high at the cent...
متن کاملIndividual Tree Crown Detection and Delineation from High Spatial Resolution Imagery Using Active Contour and Hill-climbing Methods
Efficient forest management requires detailed, timely information on forests. The increasing availability and affordability of high spatial resolution remotely sensed imagery provides viable opportunities for developing automatic forest inventories at fine scale. Individual tree crown detection and delineation has become increasingly important for forest management and ecosystem monitoring. Exi...
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ژورنال
عنوان ژورنال: Ecological Informatics
سال: 2021
ISSN: 1574-9541
DOI: 10.1016/j.ecoinf.2020.101207