I have to set up a system of a laser line/ plane projector and a web camera to localize the 3D position of the laser in the camera image. I've read / come across several resources but the idea is still not quite concrete in my head.

So my intuition is that since we have a set up of a laser projector and the camera, and we want to find the position of the laser point in the image - we have to find the 'correct' laser plane that intersects with the camera / image plane. I am confused as to how we find the relative pose of this plane with respect to the camera, and how we can use this to find the 3D coordinates?

  • $\begingroup$ (relative pose relative position?) $\endgroup$ – greybeard Feb 25 '20 at 9:18
  • $\begingroup$ relative pose is more accurate, but since there is no rotation, it could be reduced to relative position. $\endgroup$ – PyWalker2797 Feb 25 '20 at 19:44
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    $\begingroup$ This may be a question better asked on Computer Graphics. It's related to a problem known as "view correlation"; looking that up may help. But there's also the issue of camera calibration if you need high-resolution answers. $\endgroup$ – Pseudonym Mar 23 '20 at 5:43

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