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by whalesalad
92 days ago
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It's very rudimentary: smooth the canopy and find the local maxima above a base height. It's really just identifying the tallest points. Here is the first pass, https://i.imgur.com/f7Gpxmm.png, it under counted and also even counted my house as a tree, lol. |
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Even the more sophisticated algorithms pretty much always do this ;-)
You are probably not interested in taking this further, but you could give the Li tree filter a try: https://pdal.org/en/stable/stages/filters.litree.html
But getting perfect segmentation is basically impossible.