Special Section on Instrumentation and Techniques for Geometrical and Mechanical Quantity Measurement

High-accuracy three-dimensional reconstruction of vibration based on stereo vision

[+] Author Affiliations
Jin Zhang, Peng Zhang, Huaxia Deng, Jun Wang

Hefei University of Technology, School of Instrument Science and Optoelectronics Engineering, No. 193, Tunxi Road, Hefei City, Anhui Province 230009, China

Opt. Eng. 55(9), 091410 (Jul 13, 2016). doi:10.1117/1.OE.55.9.091410
History: Received January 21, 2016; Accepted June 23, 2016
Text Size: A A A

Abstract.  The traditional vibration measurement method usually uses contact sensors, which induce unwanted mass and have limits for moving parts. Currently, using stereo vision for vibration measurement is developing fast because of noncontact and full field. However, for stereo vision, the high-accuracy reconstruction for the vibration motion is a significant challenge and the factors that affect the construction accuracy have not been thoroughly studied. The accuracy analysis of sinusoidal motion reconstruction is important because it can provide guidance for the reconstruction of other vibration motions. The high accuracy reconstruction for sinusoidal motion and the factors that affect the accuracy of the reconstruction are presented. First, the error model of reconstruction using stereo vision considering the delay time, frequency, amplitude, and disparity is established. The accuracy of sinusoidal motion reconstruction in the whole period is analyzed theoretically and experimentally considering subpixel interpolation. Peak identification is essential for the sinusoidal motion reconstruction and has the highest resolution requirement for the reconstruction resolution. This requirement is systematically investigated for the sinusoidal motions with different frequencies and amplitudes. The relationships between the reconstruction resolution and parameters of cameras are analyzed.

Figures in this Article
© 2016 Society of Photo-Optical Instrumentation Engineers

Citation

Jin Zhang ; Peng Zhang ; Huaxia Deng and Jun Wang
"High-accuracy three-dimensional reconstruction of vibration based on stereo vision", Opt. Eng. 55(9), 091410 (Jul 13, 2016). ; http://dx.doi.org/10.1117/1.OE.55.9.091410


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.