Tree Heights from Lidar with QGIS (Create a Canopy Height Model)

Create a canopy height model from lidar data in QGIS. Lidar makes it possible to calculate tree heights. This tutorial will demonstrate how to do this using the built-in QGIS tools.
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[@fillup86]

I created a DSM and DTM from my own drone data of an area I flew. I then followed your steps and got values resulting in 52 - (-18.9). I'm assuming the values are in meters? How do I show proper values, where all heights are above ground level (not in the minuses)?

[@abigailgarrino8486]

Whoaaaa! That's so good. Thank you!

[@geospatialschool]

Glad you like it!

[@andy4905]

How accurate are these DTM/DSM heights if you actually measured the tree or any object your measuring?

[@bodiddlydee2546]

Thanks for your video(s). I just started learning about processing point cloud data in qgis and your channel has been helpful for sitting next to a pro and getting guidance. Great job walking us through a complex task. Thank you. I would love to make canopy model maps like this video. One issue I am facing while using 3.34 is that the processing toolbox does not contain -Point cloud conversion folder or any of it's contents. Is there a step that is needed to get those in the toolbox? I am stalled out there and cannot proceed.

[@geospatialschool]

Interesting. I thought the point cloud tools were standard with 3.34. Are you using the long-term release? If you're not using the LTR or don't need to use it then just upgrade to 3.36. That's the version I used

[@bodiddlydee2546]

@@geospatialschool Thanks! yea it's 3.34 LTR. Appreciate the guidance and sharing your release numbers

[@bodiddlydee2546]

@@geospatialschool I just dl and open 3.36 and the Point cloud conversion folder is not there. Using MacOS sonoma. Weird

[@geospatialschool]

That is strange. Maybe something with Mac?

[@bodiddlydee2546]

@@geospatialschool discovered the issue. The qgis dl on the website for mac doesn't provide point cloud. Had to dl thru macport