3D imaging using a laser projector

摘要

A method for generating 3D data of an object using a laser projector uses the steps of calibrating at least two laser projectors to a known coordinate system relative to an object; projecting a first laser beam along a path to a point on the object; placing a reflection target at the point for reflecting the first laser beam for generating a first feedback signal indicative of the first laser beam hitting the reflective target; calculating first vector coordinates of the path of the first laser beam; projecting a second laser beam towards the point; moving the second laser beam in a predetermined pattern until the second laser beam reflects off of the reflective target generating a second feedback signal indicative of the second laser beam hitting the reflective target; calculating second vector coordinates of the path of the second laser beam; triangulating the first vector coordinates with the second vector coordinates establishing a digitized 3D coordinate of the point relative to the coordinate system; responsive to an external signal, storing the 3D coordinate in an electronic memory storage device; manipulating the target reflector to points of interest on the surface; and repeating the steps to generate a series of digitized 3D coordinates.