I´m trying to extract DEM and DTM from a LIDAR file. Currently, I rasterize the image but don´t know which algorithm I need to apply to obtain the DEM and DTM information in different models to be able to compare both of them.
[GIS] Extract DEM and DTM information from LIDAR image using E-Cognition
demdigital image processingecognitionlidarlidar-analyst
Best Answer
I've recently completed this same analysis, just in ArcMap 10.1-10.3; you won't need eCognition, although it can create segmented object-based DSM/DTM.
Next you can reclassiffy these accordingly, including masking out other unwanted noise (e.g. set a threshold for the heights you're looking for)