Three-dimensional sensing methodology combining stereo vision and phase-measuring profilometry based on dynamic programming

Hyunki Lee; Min Young Kim; Jeon Il Moon

doi:10.1117/1.OE.56.12.124107

15 December 2017 Three-dimensional sensing methodology combining stereo vision and phase-measuring profilometry based on dynamic programming

Hyunki Lee, Min Young Kim, Jeon Il Moon

Author Affiliations +

Optical Engineering, Vol. 56, Issue 12, 124107 (December 2017). https://doi.org/10.1117/1.OE.56.12.124107

Abstract

Phase measuring profilometry and moiré methodology have been widely applied to the three-dimensional shape measurement of target objects, because of their high measuring speed and accuracy. However, these methods suffer from inherent limitations called a correspondence problem, or 2π-ambiguity problem. Although a kind of sensing method to combine well-known stereo vision and phase measuring profilometry (PMP) technique simultaneously has been developed to overcome this problem, it still requires definite improvement for sensing speed and measurement accuracy. We propose a dynamic programming-based stereo PMP method to acquire more reliable depth information and in a relatively small time period. The proposed method efficiently fuses information from two stereo sensors in terms of phase and intensity simultaneously based on a newly defined cost function of dynamic programming. In addition, the important parameters are analyzed at the view point of the 2π-ambiguity problem and measurement accuracy. To analyze the influence of important hardware and software parameters related to the measurement performance and to verify its efficiency, accuracy, and sensing speed, a series of experimental tests were performed with various objects and sensor configurations.

Citation Download Citation

Hyunki Lee, Min Young Kim, and Jeon Il Moon "Three-dimensional sensing methodology combining stereo vision and phase-measuring profilometry based on dynamic programming," Optical Engineering 56(12), 124107 (15 December 2017). https://doi.org/10.1117/1.OE.56.12.124107

Received: 1 September 2017; Accepted: 28 November 2017; Published: 15 December 2017

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available