How can I create a Digital Surface Model in order to collect the height of buildings and what's exactly needed to create a Digital Surface Model?

Any software provide creating it (ENVI or PCI preferred)

I have a stereo pair satellite images and tried ENVI but I didnt know exactly what I need to have and the requirement to get the perfect DSM

Mostly used software for me is Arcgis and am not used to Imagery

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    Welcome to GIS SE, can you provide more details of what you have tried already? – whyzar Nov 24 '16 at 13:37
  • What GIS software are you using? – PolyGeo Nov 24 '16 at 13:38
  • i just edited it the question i tried Envi any help will be appreciated especially cause i dont know what the requirement needed to create the dsm and i search alot – Ami Nov 24 '16 at 14:02
  • Using ENVI what precisely did you try and where did you get stuck? If you hit a dead end asking about that and want to ask about PCI then in a separate question will be the way to do so. – PolyGeo Nov 24 '16 at 14:29
  • am sorry am not good in explaining my bad , but mostly what i need is that i dont know whats the exactly requirement i need to have in order to make a dsm generally ( i dont know if the requirement change from software to another thats why i put envi or pci ) – Ami Nov 24 '16 at 14:40

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