Photogrammetry from youtube video : does it work ?

Since photogrammetry algorithms are getting better every day I was wondering if it was possible to do something with reasonably good youtube videos and Context Capture from Bentley (certainly the most efficient piece of software right now along with RealityCapture).

I picked two examples, the first one is a drone flight from Hohenzollern Castle in Germany and the second one also a drone flight from Breuberg Castle again in Germany. So far the results are pretty correct for image of less than average quality and with such a wide angle. Still you can notice a lot of geometry error on the towers for example.

I intend to publish a more in depth review along with some of methodological insight on the subject later this month (hopefully).



Hohenzollern Castle point cloud



Breuberg Castle point cloud

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