Dear Mr or Ms

we have a DEM file and stere pair of satellite images

But DEM file have a lot of "noise" and we want to edit/filter it. Also we should make DTM file file from DEM.

We have a special stereo monitor supports the passive polarization stereo mode (Planar)

1. Does ENVI support the editing of DEM file in stereo mode???
2. Can I overlay the DEM file over the stereopair
3. Can I visualize and edit DEM file as TIN??

regards