Triangulation from set of points from left camera

1. How does camera triangulation work?
2. What is point triangulation?
3. What is the minimum number of cameras required to triangulate a 3D position of the subject?
4. What is triangulation in stereo vision?

How does camera triangulation work?

How exactly does triangulation work? Through the laser or LED diode a concentrated light beam is projected on an object. The light is deflected in all directions by the surface of the object. A part of this deflected light is caught by a special line sensor with small photo sensors in a row, so-called pixels.

What is point triangulation?

A triangulation of a set of points in the Euclidean space is a simplicial complex that covers the convex hull of , and whose vertices belong to . In the plane (when is a set of points in ), triangulations are made up of triangles, together with their edges and vertices.

What is the minimum number of cameras required to triangulate a 3D position of the subject?

For such a triangulation to work, the system needs that at least two cameras see the marker of interest. Thus, triangulation accuracy is strongly related to the positions and orientations of the cameras and marker placement.

What is triangulation in stereo vision?

In computer vision, triangulation refers to the process of determining a point in 3D space given its projections onto two, or more, images.