2

I am a beginner in eCognition and am working on trying to extract volume for certain classified objects. When I extract volume with the ruleset given in the program it is the same value as the area (ie. 200m2 for area and 200m3 for volume). From what I understand in the handbook there needs to be voxels available to create a 3D volume. I am currently using a handful of DEM derivatives (slope, roughness, aspect, a change map, curvature) and the DEM itself.

Can anyone suggest a way to determine volume in eCognition (or any alternative methods)?

I am trying to pull out the individual volume of the brown and green objects. They are landslides and their deposits.

I want be able to get a correct volume so upon exporting in eCog with the attribute table they can be seen on the pop-up from ArcGIS (ignore my values in the Arc pop-up, they are wrong)

  • Volume of what objects? What are your data? Can you post an image and a desired result? – Jon Jul 11 '19 at 14:36
  • Hi Jon, I just posted some pics above. I am trying to determine the volume of landslides (lost material) and their deposits (gained material). My data are a change map from subtracted (1meterx1meter) DEMs, Slope, 2012 DEM(1x1m) of the area, Openness, Roughness, Curvature, NDVI, satellite imagery, and streamlines. The volume I keep getting for the objects is the same as the area as seen in the first image - which I believe is incorrect. In the end I just want to correct volume so I can add it to the attribute table and export into ArcGIS so it can be seen in the table and pop-up (bottom image). – Rena Nicole Jul 11 '19 at 15:13
  • The volumes I have in the pop-up image are to be ignored because they are incorrect. That was just me trying to figure it out. – Rena Nicole Jul 11 '19 at 15:14
  • I ended up figuring it out through arc by using a py script with zonal stats to table and calculating the fields instead – Rena Nicole Jul 24 '19 at 15:42

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Browse other questions tagged or ask your own question.