I classified laying logs (tree trunks) from CHM (Canopy Height Model = Digital Surface Model (DSM) - Digital Terrain Model (DTM)) created from LiDAR point cloud. I converted classified logs into polygon shapefile. I now have polygons that represent logs and CHM image. CHM were clipped by polygons (logs), now I am thinking of calculating volume of each log using QGIS. Is there any existing method?

  • 2
    Suggestion 1: Share with us the software you're working with.
    – Erik
    Jun 16, 2020 at 9:33
  • Thanks @Erik, I updated my question. I have access to QGIS and ArcGIS software
    – Sher
    Jun 16, 2020 at 23:24
  • Then please choose one you're more apt at working with, maybe do some research on the general workflow and edit your question accordingly, thank you.
    – Erik
    Jun 17, 2020 at 7:03
  • 1
    Thank you @Andre Silva. And I am sorry for not providing enough details. I updated the question, hope it makes more sense now.
    – Sher
    Jun 17, 2020 at 23:30
  • 2
    Thanks for editing. You will find the answer here: gis.stackexchange.com/questions/265489/…. Run the Zonal Statistics tool. Multiply the mean height by the polygon area. Jun 18, 2020 at 20:50


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