In this work, the Gray Code
technique is implemented for the 3D reconstruction of discontinuous
objects in the rank of millimetres to meters. This technique consists
of projection on the surface object of n-2D binary patterns. The
combination of this binary sequence defines 2n spatial different
directions of projection. In this way, the body height is codified
as a lateral displacement of projection directions. Basically, it
is derived from the laser triangulation technique, but it is made
bidimensionally. A CCD camera acquires the digital images of the
deformed patterns that after they are treated and processed to obtain
the 3D digital reconstruction of the object. The system was evaluated
using objects of well-known form. Experimental results are presented
and discussed. |