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I have been trying to build digital surface model from stereo satellite images.

I do some initial research of it, it looks like I have to go outside and manually measure the height of an object (trees, buildings, grass lands, etc.).

Is there any other way to assess DSM instead of manually measurement?

My experiment area is Berlin city. I only concern about the accuracy of height of structures.

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    Compare it to a higher resolution dataset - do you have LIDAR data for your study area? – AWGIS May 14 at 15:47
  • please provide more information about your study area (relatively flat or not, with build/trees or not) and the image used (spatial resolution). As mentioned by @AWGIS you could use another dataset, but it has to be reliable. – radouxju May 14 at 20:04
  • Right now I am building the DSM of Berlin. And I don't have higher resolution dataset. I use Pleiades images which are 50 cm resolution. So I think it only makes sense if my reference dataset has higher accuracy than 50 cm, right? – Lion Lai May 15 at 8:44
  • After some searching, I found businesslocationcenter.de/en/economic-atlas/download-portal which has some geo information of structures in Berlin. And I am working on figuring out geography markup language file. – Lion Lai May 15 at 9:38
  • Ideally you would want it to be greater than 50cm but I assume you are measuring Z accuracy (height)? Building height data is a good option. – AWGIS May 15 at 9:47

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