Rock classification

[mikael....@gmail.com]

Hi, 
I am trying to classify rocks using lasclassify 

lasclassify -i 12a\*.las -ground_offset 0.5 -small_buildings -rugged 50 -ignore_class 7 18 30 65 -odir 13a -cores 8 -step 0.05

The result looks prommising, BUT I get noise above the rock also classified as building (see attached). I cannot see why?  

Any input to the approach, or better yet input to a different approach? 

 

[Jochen Rapidlasso]

Hi Mikael,

if you provide a data sample I can have a look at it.

Thanks,

Jochen @rapidlasso