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Author Topic: scale bars vs 3D ground control points  (Read 1163 times)

xabierr

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scale bars vs 3D ground control points
« on: October 29, 2020, 05:27:48 AM »
Hi all,

How many scale bars would be required to remove radial distortion on a model? Is there an equivalent to the suggested 9-12, well distributed full 3D ground control points? Or the use of scale bars is never equivalent to full 3D GCPs?

cheers,

Javier