I am looking for a method to process a remote sensing image and extract the crown areas of the individual trees from the image.
I have both visual wavelength areal imagery, and lidar data from the area. The location in question is a desert area, so the tree cover isn't as dense as a forest area. The resolution of the aerial imagery is 0.5 feet by 0.5 feet. The lidar resolution is approximately 1 x 1 feet. Both the visual data and the lidar come from a Pima County, Arizona dataset. A sample of the type of aerial imagery I have is at the end of this post.
This question Single Tree detection seems to be the same issue, but there does not seem to be a good answer there.
I can obtain a reasonable classification of the vegetation types (and information about the overall percent cover) in the area by using the Iso Cluster classification in Arcmap, but this provides little information on individual trees. The closest I have to what I want is the results of passing the output of the isocluster classification through the Raster to Polygon feature in Arcmap. The problem is that this method merges near by trees into a single polygon.
Edit: I probably should have included some more detail about what I have. The raw datasets I have are:
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I have both visual wavelength areal imagery, and lidar data from the area. The location in question is a desert area, so the tree cover isn't as dense as a forest area. The resolution of the aerial imagery is 0.5 feet by 0.5 feet. The lidar resolution is approximately 1 x 1 feet. Both the visual data and the lidar come from a Pima County, Arizona dataset. A sample of the type of aerial imagery I have is at the end of this post.
This question Single Tree detection seems to be the same issue, but there does not seem to be a good answer there.
I can obtain a reasonable classification of the vegetation types (and information about the overall percent cover) in the area by using the Iso Cluster classification in Arcmap, but this provides little information on individual trees. The closest I have to what I want is the results of passing the output of the isocluster classification through the Raster to Polygon feature in Arcmap. The problem is that this method merges near by trees into a single polygon.
Edit: I probably should have included some more detail about what I have. The raw datasets I have are:
- Full las data, and a tiff raster generated from it.
- Visual imagery (like the sample image shown, but covering a much wider area)
- Manual direct measurements of a subset of the trees in the area.
- The ground/vegetation classifications.
- The DEM/DSM rasters.
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