Abstract
We propose a new method for measuring the entire surfaces of a 3D object by light stripe range finding. Most of light striping measurements assume that the positions of a camera and light sources are calibrated previously. The propose method can utilize not known positions of light sources but unconstraint free wands. In the case of plural parallel planes, there is a geometric constraint between the plane generated by the freehand light stripe and the intersected points with the parallel light stripes, so that the 3D geometry of the freehand light source can be determined analytically. Once hand-sweeping the slit light source over the object, we can obtain the entire 3D shapes of the object. It can expand the variety of applications on shape measurements.
