Apparatus and method for three dimensional surface measurement

A method for laser triangulation, comprising:

• capturing images of a surface, via a first camera, as the first camera moves along the surface;
• illuminating the surface with a laser projection produced by a laser source that moves along the surface in conjunction with the first camera;
• applying photogrammetric processing to the images;
• computing calibrations for laser triangulation based on a result of the photogrammetric processing;
• and
• computing, via the laser triangulation, coordinates of points of the surface illuminated by the laser projection based on the calibrations.

A non-transitory computer readable medium encoded with instructions that when executed cause a processor to:

• extract images of a surface from an image stream received from a first camera;
• apply photogrammetric processing to the images;
• compute calibrations for laser triangulation based on a result of the photogrammetric processing;
• and
• compute, via laser triangulation, based on the calibrations, coordinates of points of the surface illuminated by a laser projection captured in the images.