A shape reconstruction and visualization method for a flexible hinged plate using binocular vision

Abstract A binocular vision-based shape deformation reconstruction and visualization method for a flexible hinged plate is proposed. The deformation of the flexible hinged plate in bending mode and torsional mode is investigated. In order to measure the deformation, a binocular vision system is used as the detector. Image processing functions are called to obtain offsets of the mark points pasted on the plate surface. Several types of surface fitting methods are implemented to fit the mark point array into a curved surface. The shape reconstruction graphics of the flexible hinged plate can be obtained. Moreover, the influence of deformation amplitude and stiffness of two flexible hinges on visualization results is studied. The simulation work for curve fitting is conducted by using the measured signals by the binocular stereo vision. The experiments on visual measurement, shape reconstruction and visualization are conducted, using the constructed experimental system and investigated methods. The experimental results show that the quadratic fitting method can be a better curved surface fit for the flexible hinged plate both in bending mode and in torsional mode, and visualization can be realized in real time.

[1]  Sandro Barone,et al.  Low-frame-rate single camera system for 3D full-field high-frequency vibration measurements , 2019, Mechanical Systems and Signal Processing.

[2]  Wesley E. Snyder,et al.  Machine Vision , 2003 .

[3]  Bingwei He,et al.  Camera calibration with lens distortion and from vanishing points , 2009 .

[4]  Saiied M. Aminossadati,et al.  Recent developments in fibre optic shape sensing , 2018, Measurement.

[5]  Reza Taherian,et al.  A new equation for predicting electrical conductivity of carbon-filled polymer composites used for bipolar plates of fuel cells , 2012 .

[6]  Zhi-cheng Qiu,et al.  Fuzzy neural network vibration control on a piezoelectric flexible hinged plate using stereo vision detection , 2019, Journal of Intelligent Material Systems and Structures.

[7]  Yu Lu,et al.  Research on large deflection deformation reconstruction of elastic thin plate based on strain monitoring , 2020 .

[8]  Danny A. Barrows,et al.  Photogrammetric techniques for aerospace applications , 2012 .

[9]  Xiangjun Zou,et al.  High-accuracy multi-camera reconstruction enhanced by adaptive point cloud correction algorithm , 2019, Optics and Lasers in Engineering.

[10]  Jin Liang,et al.  Large deformation measurement scheme for 3D digital image correlation method , 2012 .

[11]  Michiyasu Noda,et al.  Experimental study on a noncontact method using laser displacement sensors to measure vibration stress in piping systems , 2016 .

[12]  Francesc Moreno-Noguer,et al.  Real-time 3D reconstruction of non-rigid shapes with a single moving camera , 2016, Comput. Vis. Image Underst..

[13]  Tao Wang,et al.  A Method of Reconstructing a Virtual Gallbladder Geometric Model Based on OpenGL , 2013 .

[14]  Bing Pan,et al.  Real-time, non-contact and targetless measurement of vertical deflection of bridges using off-axis digital image correlation , 2016 .

[15]  Roger Y. Tsai,et al.  A versatile camera calibration technique for high-accuracy 3D machine vision metrology using off-the-shelf TV cameras and lenses , 1987, IEEE J. Robotics Autom..

[16]  J. Gril,et al.  Experimental study of the hygromechanical behaviour of a historic painting on wooden panel : devices and measurement techniques , 2020, Journal of Cultural Heritage.

[17]  Curtis F. Gerald,et al.  APPLIED NUMERICAL ANALYSIS , 1972, The Mathematical Gazette.

[18]  Yuezong Wang,et al.  Three-dimensional shape reconstruction with small scale based on micro stereo vision , 2013, 2013 IEEE International Conference on Information and Automation (ICIA).

[19]  Jun Wang,et al.  A stereovision measurement for large deformation of light structures , 2019 .

[20]  Luiz Carlos Sandoval Góes,et al.  Attitude and vibration control of a satellite containing flexible solar arrays by using reaction wheels, and piezoelectric transducers as sensors and actuators , 2017 .

[21]  C. Girkin,et al.  Full-field displacement measurement of corneoscleral shells by combining multi-camera speckle interferometry with 3D shape reconstruction. , 2020, Journal of the mechanical behavior of biomedical materials.

[22]  Lu Sun,et al.  Non-contact optical sensing of asphalt mixture deformation using 3D stereo vision , 2016 .

[23]  Peng Liu,et al.  Stream surface reconstruction of aero engine blade based on limited measured points , 2019, Adv. Eng. Softw..

[24]  Zhengyou Zhang,et al.  A Flexible New Technique for Camera Calibration , 2000, IEEE Trans. Pattern Anal. Mach. Intell..

[25]  Zhi-cheng Qiu,et al.  A novel vibration measurement and active control method for a hinged flexible two-connected piezoelectric plate , 2018, Mechanical Systems and Signal Processing.

[26]  Ángel J. Molina-Viedma,et al.  3D mode shapes characterisation using phase-based motion magnification in large structures using stereoscopic DIC , 2018, Mechanical Systems and Signal Processing.

[27]  Qican Zhang,et al.  Large-scale structured light 3D shape measurement with reverse photography , 2020 .

[28]  Mario Cifrek,et al.  A brief introduction to OpenCV , 2012, 2012 Proceedings of the 35th International Convention MIPRO.

[29]  Youfu Li,et al.  The research of an automatic object reconstruction method based on limit visible region of the laser-scanning vision system , 2010 .

[30]  David A. Ehrhardt,et al.  High-speed 3D digital image correlation vibration measurement: Recent advancements and noted limitations , 2017 .

[31]  Xiaojun Wu,et al.  Real-time 3D shape reconstruction, dynamic 3D mesh deformation, and high fidelity visualization for 3D video , 2004, Comput. Vis. Image Underst..

[32]  Zhao Yang,et al.  Attitude motion of spacecraft during oblique solar panel deployment , 2012 .

[33]  Xiaojin Zhu,et al.  Fiber Bragg grating plate structure shape reconstruction algorithm based on orthogonal curve net , 2016 .

[34]  Chenglin Wang,et al.  Real-time detection of surface deformation and strain in recycled aggregate concrete-filled steel tubular columns via four-ocular vision , 2019, Robotics Comput. Integr. Manuf..

[35]  Junjie Li,et al.  Displacement monitoring for slope stability evaluation based on binocular vision systems , 2018, Optik.

[36]  Long Zhao,et al.  Optimal design and experimental analyses of a new micro-vibration control payload-platform , 2016 .

[37]  Maryam Bitaraf,et al.  Large deflection analysis of flexible plates by the meshless finite point method , 2010 .

[38]  Thomas Durand-Texte,et al.  Vibration measurement using a pseudo-stereo system, target tracking and vision methods , 2019, Mechanical Systems and Signal Processing.

[39]  Ojaswa Sharma,et al.  Signed distance based 3D surface reconstruction from unorganized planar cross-sections , 2017, Comput. Graph..