What is Photogrammetry?

One minute video to show what is photogrammetry.
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In this playlist, "VFX general principles", we upload some videos that explain some basic concepts of visual effects and compositing.
They are not related to any particular software.

[@PaulGriswold1]

I have only one issue with this video. The glass vase on the table is a terrible example for photogrammetry. Anything transparent or reflective causes huge issues with photogrammetry projects and should be first painted with something to remove the reflections and transparency.

[@unrealab]

Hi, you say right that in photogrammetry you should not use reflective materials and in general elements that move, because this obviously deceives the solving of the scene.
And in fact the glass object is perhaps not the best example.
But if you notice, though, in the video we deliberately used as examples of markers the edges of the table and not markers present on the glass vase, precisely for the reason you say.
The example is meant to show how, even in the presence of unsuitable objects, tracking should be done on stable markers that do not move.
Perhaps this should have been made clearer.

[@mirality2464]

Grazie mille!

[@leo.hipster]

👏