Structured-Light-Based 3D Reconstruction Using Gray Code and Line-Shift Stripes

Abstract:

The structured light can be used to extract the 3D information through obtaining the three-dimensional points from being measured object, and this method is simple, fast and accurate. However, the key factor of this process is how to inspect the stripes accurately. To improve the accuracy, in this paper, we firstly locate the stripes of the structured light roughly by use of the gray code images, and then locate it accurately by utilizing the line-shift stripes code images. Finally we turn the two dimensions search into one dimension search in the image match by using of epipolar constraint, and the intersection points of the stripes of structured light and the epipolar line are final match points. Finally, space intersection has been used to obtain three-dimensional points. Repeated experiments prove that wonderful effect can be obtained by this method.

• Periodical: Advanced Materials Research (Volumes 108-111)
• Pages: 799-804
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.108-111.799
• Online since: May 2010
• Authors: Shun Yi Zheng, Hua Liang Hu, Xuan Xu, Kai Le
• Keywords: Epipolar Constraint, Gray Code, Line-Shift Stripes Code, Structured Light

References

[1] SUN Jun-hua, WEI Zhen-zhong, ZHANG Guang-jun. A coding method for high-density grating structured light [J]. Opto-Electronic Engineering, 2006, 33(7): 78~82.

[2] ZHANG Yongjun, ZHANG Zuxun, ZHANG Jianqing, Camera calibration Using 2D_DLT and Bundle Adjustment with Planar Scenes[J]. Geometrics and Information Science of Wuhan University, 2002, 6(27), 566~571.

[3] ZHANG Zuxun, SU Guozhong ZHENG Shunyi, ZHANG Jianqing, Relation OpenGL Imaging Process with Exterior and Interior Parameters of Photogrammetry[J]. Geometrics and Information Science of Wuhan University， 2004, 7(29), 570~574.

[4] YIN Li-ping, YU Xiao-yang, WU Hai-bin, The Development of 3D Measurement Technology Based on Structured Light by Combining Gray Code with Phase-shift [J]. JOURNAL HARBING UNIV. SCI. &TECH， 2007, 5 (12), 5~7, 11.

[5] Li, Hao; Straub, Raphael; Prautzsch, Hartmut. Structured light based reconstruction under local spatial coherence assumption[C]. 3rd International Symposium on 3D Data Processing, Visualization, and Transmission, 3DPVT (2006).

DOI: 10.1109/3dpvt.2006.132

[6] Yang, Rongqian Cheng, Sheng Yang, Wei Chen, Yazhu. Robust and accurate surface measurement using structured light[J]. IEEE Transactions on Instrumentation and Measurement, June (2008).

DOI: 10.1109/tim.2007.915103

[7] Wei, Zhenzhong; Zhou, Fuqiang; Zhang, Guangjun. 3D coordinates measurement based on structured light sensor [J]. Sensors and Actuators, A: Physical. May 17 (2005).

DOI: 10.1016/j.sna.2004.12.007

[8] LI Hong-yan, A Method of Threshold Segmentation Based on Special Binary Code [J]. Computer Imitate，2008, (07): 196~199.

[9] YUE Huimin . Research on three-dimensional profilometry based on temporal phase unwrapping.

[10] ZHANG Zuxun, ZHANG Jianqing. Digital Photogrammetry Science [M]. Wuhan University, (2001).

[11] CHENG Junting, ZHAO Can, MO Jian hua, Free-form 3-D Profilometry Based on Coding Structured Light and Epipolar Constraint[J]. Computer Measurement & Control, (2007).

[12] Alda S, Cremers A B. Towards composition management for component-based peer-to-peer architectures [J]. Electronic Notes in Theoretical Computer Science, 2005(114): 47~64.

DOI: 10.1016/j.entcs.2004.02.067

[13] Klette R, Schluns K, Koschan A. Computer vision: three dimensional data from images. Germany: SpringerPress, (1998).

[14] Chen Rui-gai ChenHuai-xin. A new method for interference fringe skeletonzing and thinning [J]. Laser Journal, 2005, 26(5): 40~41.