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A comment on Tree felling work uncovers WW2 underground bunker near Moffat.

Re:Tree felling work uncovers WW2 underground bunker near Mo... by j88439h84 on Tuesday March 17, 2020 @06:56PM (#22611513)
How is that image created?
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Re:Tree felling work uncovers WW2 underground bunker near Mo... by Daub on Tuesday March 17, 2020 @07:12PM (#22611671)
Photogrammetry. From multiple photos, 3d information is derived. Try it yourself with Meshroom (open source).
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