Imaging Components, Systems, and Processing

System input–output theoretic three-dimensional measurement based on circular-shaped structured light patterns

[+] Author Affiliations
Deokwoo Lee

Youngsan University, Department of Visual Image Design Engineering, Busan, Republic of Korea

Hamid Krim

North Carolina State University, Department of Electrical and Computer Engineering, Raleigh, North Carolina, United States

Opt. Eng. 56(7), 073104 (Jul 14, 2017). doi:10.1117/1.OE.56.7.073104
History: Received November 10, 2016; Accepted June 22, 2017
Text Size: A A A

Abstract.  Alternative approaches to three-dimensional (3-D) reconstruction by employing the concepts of “system identification” and “communication systems” based on structured light patterns are proposed. In addition, a sampling criterion of the light source is derived in the case of using multiple projectors because 3-D reconstruction sometimes employs multiple viewpoints (cameras) and multiple structured light sources (or projectors). To reformulate a reconstruction problem, an input–output (I/O) system theoretic is adopted, and camera(s) and light source(s) that are located at different positions are defined as the output and the input, respectively. Akin to the system identification problem, the ratio of an output to an input, the “system function,” is defined as a 3-D measurement result. Alternatively, the reconstruction work can employ the concept of the “modulation and demodulation theory,” and the reconstruction work can be reinterpreted as an “input estimation problem.” This contribution chiefly deals with approximate reconstruction results that are sufficient for practical applications, such as 3-D object detection, clarification, recognition, and classification, rather than a perfect 3-D reconstruction itself. To that end, the development of an efficient and fast 3-D imaging system framework is proposed.

© 2017 Society of Photo-Optical Instrumentation Engineers

Citation

Deokwoo Lee and Hamid Krim
"System input–output theoretic three-dimensional measurement based on circular-shaped structured light patterns", Opt. Eng. 56(7), 073104 (Jul 14, 2017). ; http://dx.doi.org/10.1117/1.OE.56.7.073104


Access This Article
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Book Chapters

Topic Collections

Advertisement


 

  • Don't have an account?
  • Subscribe to the SPIE Digital Library
  • Create a FREE account to sign up for Digital Library content alerts and gain access to institutional subscriptions remotely.
Access This Article
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).
Access This Proceeding
Sign in or Create a personal account to Buy this article ($15 for members, $18 for non-members).
Access This Chapter

Access to SPIE eBooks is limited to subscribing institutions and is not available as part of a personal subscription. Print or electronic versions of individual SPIE books may be purchased via SPIE.org.