This video shows the results of an eCognition Developer workflow creating a DTM based on a point Cloud representing a DSM (Digital Surface Model). This video nicely shows how to use point cloud layer in the object-based image analysis (OBIA) process to generate a digital terrain model (DTM).We first delineated features that do not belong to the ground from the point cloud. Then in a next step we removed the data points of these objects and refilled them based on the surrounding elevation information.
Input:
- Point Cloud (DSM)
Output:
- Point Cloud DTM
We have a FREELY available Rule Set and project data for this exercise: support.ecognition.com/hc/en-...
You can use the FREE trial version of eCognition to play around:
www.geospatial.trimble.com/ec...
If you have more questions, ask them in our FREE Community:
support.ecognition.com/hc/en-...
Негізгі бет Digital Terrain Model (DTM) creation
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