Good Morning all,

 

Joe LaBranche, surveyor and ArcGIS user shared his experience with canopy modeling. Nice work Joe!

 

 

 

Thank you for the link.  I have used LAStools from rapidlasso and found their software extremely useful.  However, while I have not attempted this type of processing using rapidlasso programs I have done so using ArcGIS.  The results are astounding:

 

 

In the above image (black = no change between DTM and DSM; and white = a “significant” change between DTM and DSM) we can readily discern individual trees and tree lines as well as buildings and other features.  Moreover, I would venture we could also accurately identify softwood vs. hardwood stands and many other entities!

 

We can also overlay a Maine Office of GIS orthophoto on the “canopy height model” and, to me, it appears to give some “depth” to an otherwise flat image.  What do you think?

 

 

Kind regards,

Joe

 

Joseph R. LaBranche

Professional Land Surveyor

Certified Mapping Scientist - GIS/LIS

LaBranche Land Surveys

27 Oak Street

Rockland, ME 04841

(207) 594-4206 wk

(207) 691-3218 cl

www.labranchelandsurveys.com

 

 

 

I saw this in one of my LinkedIN feeds this morning. It exceeds my level of competence but some of you may find it useful in determining tree canopy heights.

http://rapidlasso.com/2014/11/04/rasterizing-perfect-canopy-height-models-from-lidar/

 

 

Joseph Young

Executive Director

Maine GeoLibrary

SHS 145

51 Commerce Drive

Augusta, Maine 04333- 145

VP 207-624-2664

FAX 207-287-1131

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