Automatic tree crown detection

Manual surveying the urban forest is a time consuming and monotonous task with the risk of being outdated from the moment you start. The lab has worked out a workflow based on lidar and multispectral data from aerial imagery to detect tree crowns. This allows us to calculate the percentage of tree crown cover, segmenting and pinpointing public and private trees. By doing so, this opens a whole now flow of data for urban forestry research like canopy cover changes and ecosystem services calculation. This could – and our opinion – lead to new policy tools.

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