Measuring Shape with a Multispectral Pattern Projection Range Finder

Abstract

The range finder proposed in this paper is based on color pattern projection method so that it can measure small objects. The color pattern consists of stripes, whose color is continuously changed in such a way that hue changes linearly. The advantages of the system are that it requires only commonly available optical system, it uses a low-cost commercial CCD camera and a LCD projector, and it can measure the whole field of view simultaneously.