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)?