High-speed 3D profilometry employing HSI color model for color surface with discontinuities

Affiliation of Author(s):机电学院

Journal:OPTICS AND LASER TECHNOLOGY

Key Words:Fringe analysis Phase shifting 3D shape measurement

Abstract:Structured-light projection methods are facing two remaining challenges. One is a high-speed optical metrology on objects with chromatic surfaces and the other one is avoiding phase errors caused by height steps or spatially isolated surfaces. To overcome them, this paper provides an effective profilometry with a single-shot image by employing the HSI color model to compose the colorful pattern. Three sinusoidal fringes with different phase steps are encoded in RGB channels respectively. The hue component of a deformed pattern is applied to reconstruct the 3D shape of an object. The saturation and the intensity are utilized to correct the hue demodulation. Besides, an effective color calibration procedure is developed to compensate the hue error. Experimental results verify the feasibility of the developed method. (C) 2017 Elsevier Ltd. All rights reserved.

ISSN No.:0030-3992

Translation or Not:no

Date of Publication:2017-11-01

Co-author:Yin, Wei,Cheng, Xiaosheng,Xie, Jieru,Chen, Yingying

Correspondence Author:cui haihua

Date of Publication:2017-11-01