This technique was used to perform captures such as the one seen in this clip: https://www.youtube.com/watch?v=ytbzURkyCmI
It's a personal project I'll be covering in the near future - a 3D scanner attachment for a standard DSLR (or other type cameras). It allows to take depth photographs by triangulating curvature of the projected laser line.
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https://www.youtube.com/watch?v=564XvK151pU