[2] Zeng Dinghua, Zhang Yongxing, Yin Ke, et al. Application of diagonal measurement method in the displacement moni-toring of tunnel[J]. Hydrogeology & Engineering Geology, 2005, 32(5): 113-115.
[3] Wang Taidian, Zhuang Haiyue, Qiu Yazhu, et al. The appli-cation of micro-transformer monitor for the operation of the tunnel stability assessment[J]. Supervision Test and Cost of Construction, 2009, 2(10): 28-35.
[4] Bassett R H, Kimmance J P, Rasmussen C. An automated electrolevel deformation monitoring system for tunnels[J]. Proceedings of the Institution of Civil Engineers-Geotechnical Engineering, 1999, 137(3): 117-125.
[5] Chaiyasarn K. Damage detection and monitoring for tunnel inspection based on computer vision[D]. Cambridge: Univer-sity of Cambridge, 2014.
[6] Olsson C, Enqvist O. Stable structure from motion for unor-dered image collections[C]// Scandinavian Conference on Image Analysis. Springer-Verlag, 2011: 524-535.
[7] Zhou Qicai, Jin Qi, Gao Song, et al. A tunnel cross-section deformation detection system based on laser ranging tech-nology[J]. Measurement & Control Technology, 2010, 29(5): 44-46, 49.
[8] Izvoltova J, Villim A, Kozak P. Determination of geometrical track position by robotic total station[J]. Procedia Engineering, 2014, 91: 322-327.
[9] Reshetyuk Y. Investigation and calibration of pulsed time-of-flight terrestrial laser scanners[D]. Stockholm: KTH Royal Institute of Technology, 2006.
[10] Xie Xiongyao, Lu Xiaozhi, Tian Haiyang, et al. Development of a modeling method for monitoring tunnel deformation based on terrestrial 3d laser scanning[J]. Chinese Journal of Rock Mechanics and Engineering, 2013, 32(11): 2214-2224.
[11] Seo D J, Lee J C, Lee Y D, et al. Development of cross section management system in tunnel using terrestrial laser scanning technique[C]. The International Archives of the Photogram-metry, Remote Sensing and Spatial Information Sciences, Beijing, 2008, 36: 573-582.
[12] Han J Y, Guo J, Jiang Y S. Monitoring tunnel profile by means of multi-epoch dispersed 3-D LIDAR point clouds[J]. Tunnel-ling and Underground Space Technology, 2013, 33: 186-192.
[13] Delaloye D. Development of a new methodology for meas-uring deformation in tunnels and shafts with terrestrial laser scanning (LIDAR) using elliptical fitting algorithms[D]. Ontario, Canada: Queen′s University Kingston, 2012.
[14] Tang Yiping, Ye Yongjie, Zhu Yihua, et al. Research on intelligent Omni-Directional Vision Sensors and their applica-tions[J]. Chinese Journal of Sensors and Actuators, 2007, 20(6): 1316-1320.
[15] Tang Yiping, Wang Qing, Chen Minzhi, et al. Design of stereo Omni-directional vision sensor[J]. Chinese Journal of Scientific Instrument, 2010, 31(7): 1520-1527.
[16] Miuik B. Two-view geometry of omnidirectional cameras[D]. Prague: Czech Technical University, 2004.
[17] Yamashita A, Matsui K, Kawanishi R, et al. Self-localization and 3-D model construction of pipe by earthworm robot equipped with omni-directional rangefinder[C]. 2011 IEEE International Conference on Robotics and Biomimetics, Karon Beach, Phuket, 2011: 1017-1023.
