Clean Up a Bare Earth DEM Created From Lidar Points

Discussion created by dashti on Oct 15, 2010
Latest reply on Oct 19, 2010 by leche
Hi everone,
and thanks in advance for any reply or help.

I have used lidar point imported into arcgis in point shape file.
I extracted the ground returns and used them to creat a bare earth DEM. I tried using TIN and IDW.

when the raster was created I noticed many small high peaks where they sould not be.
I think that is either an error in the extraction of ground points or in the raster interpolation process.

My question is: How can I clean the raster of these unwanted peaks to have a smooth bare earth DEM

Mohammad Dashti