3-D measurement of dynamic and isolated objects based on color-encoded sinusoidal fringe
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摘要: 采用常规条纹投影与相位分析方法，对动态物体，尤其是空间存在孤立区域、分布不连续的动态物体进行3维面形测量时，很难得到可靠的展开相位。为了解决这一问题，提出一种用颜色编码正弦条纹光栅投影测量的新方法。该方法使用二级编码的颜色信息来标记待投影的正弦条纹，从另一角度拍摄记录带有颜色信息的变形条纹图，根据编码特征进行解码获取颜色级次来确定条纹级次，并指导截断相位的展开，重建空间孤立动态物体的3维面形数据。结果表明，该算法的编码稳定、解码方式可靠，只需要拍摄1幅图就可以较好地重建空间孤立物体的3维面形。Abstract: When 3-D shapes of dynamic objects, especially with isolated area and discontinuous distribution, are measured with the traditional fringe projection and phase analysis method, it is difficult to get reliable expansion phase. A technique based on color-encoded sinusoidal fringe projection was proposed to solve the problem. The projected sinusoidal fringes were marked with two-level encoded color. After capturing the deformed fringe pattern, the fringe order was determined according to the color sequence based on the coded characteristics, and the cut-off phase was unwrapped. Finally, the 3-D shape of the dynamic object with isolate area was reconstructed. The results show the decoding method is stable and reliable. 3-D shape of the spatially isolated dynamic objects can be exactly reconstructed with only one shot.
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[1] ZHANG S, VANDERWEIDE D, OLIVER J. Superfast phase-shifting method for 3-D shape measurement[J].Optics Express, 2010, 18(9):9684-9689.
[2] ZHANG Q C, SU X Y. High-speed optical measurement for the drumhead vibration [J]. Optics Express, 2005, 3(8):3110-3116.
[3] LI Y, ZHAO C F, QIAN Y X, et al. High-speed and dense three-dimensional surface acquisition using defocused binary patterns for spatially isolated objects [J]. Optics Express, 2010, 18(21):21628-21635.
[4] TAKEDA M, MUTOH K. Fourier transform profilometry for the automatic measurement of 3-D object shapes[J]. Applied Optics,1983,22(24):3977-3982.
[5] SU X Y, CHEN W J. Fourier transform profilometry: a review[J].Optics and Lasers in Engineering, 2001, 35(5):263-284.
[6] SU X Y, ZHANG Q C. Dynamic 3-D shape measurement method: a review[J]. Optics and Lasers in Engineering, 2010, 48(2):191-204.
[7] LI Y, SU X Y. A new method f or system calibration in phase measurement profilometry with large view field [J]. Acta Optica Sinica, 2006, 26(8):1162-1166(in Chinese).
[8] ZHU Q Y, SU X Y, XIAO Y S. 3-D shape measurement method with max-difference color-coding structured light[J]. Laser Technology, 2006, 30(4):340-343(in Chinese).
[9] MA K, ZHANG Q C. A new color structured light coding method for Three-Dimensional measurement of isolated object[J]. Chinese Journal of Lasers, 2010, 37(11): 2918-2924(in Chinese).
[10] LIU W Y, WANG Z Q, MU G G.Three-Dimensional surface profilomentry using color-coded projection grating[J]. Acta Optical Sinica, 2001, 21(6):687-690(in Chinese).
[11] WANG N, ZHANG Q C, MA K. 3-D shape measurement for isolated objects based on color-encoded fringe projection[J]. Journal of Optoelectronics稬aser, 2010, 21(8):1227-1231(in Chinese). [12] YU X Y, WU H B.3-D measurement technology by structured light based on fringe edge decoding [J].Chinese Journal of Electron Devices, 2008, 31(2):390-392(in Chinese).
[13] SU W H. Color-encoded fringe projection for 3-D shape measurement [J]. Optics Express, 2007, 15(20):13167-13181.
[14] SU X Y, CHEN W J. Reliability-guided phase unwrapping algorithm: a review [J]. Optics and Lasers in Engineering, 2004, 42(3):245-261.
[15] MA K, ZHANG Q C. A new method to reduce the influence of object's color texture in three-dimensional shape measurement[J]. Journal of Optoelectronics稬aser, 2011, 22(4): 582-587(in Chinese).
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