[1] Comez F, Althoeef K, Senevirayne L D. Modeling of ultrasound sensor for pipe inspection[J]. IEEE, 2003, 2(9): 2555-2560.
[2] Xin Wei, Ding Keqin, Huang Donglin, et al. Pulse eddy current detection simulation of the pipe corrosion with insulation layer[J]. Nondestructive Testing, 2009, 31(7): 509-512. (in Chinese)
[3] Tang Ying, Pan Mengchun, Luo Feilu, et al. Detection of corrosion in pipeline using pulsed magnetic flux leakage testing[J]. Computer Measurement & Control, 2010, 18(1): 38-43. (in Chinese)
[4] Wang Ying, Wang Jianlin. Optoelectronic inspection of in-pipe surfaces[J]. Journal of Applied Optics, 2008, 29(5): 735-739. (in Chinese)
[5] Duran O, Althoefer K, Seneviratne L D. Automated pipe defect detection and categorization using camera/laser-based profiler and artificial neural network[J]. IEEE Transactions on Automation Science & Engineering, 2007, 4(1): 118 - 126.
[7] Koch C, Georgieva K, Kasireddy V, et al. A review on computer vision based defect detection and condition assessment of concrete and asphalt civil infrastructure☆[J]. Advanced Engineering Informatics, 2015, 29: 196-210.
[9] Wang Ying, Zhang Rui. In-pipe surface circular structured light 3D vision inspection system[J]. Infrared and Laser Engineering, 2014, 43(3): 891-896. (in Chinese)
[10] Tang Yiping, Ye Yongjie, Zhu Yihua, et al. The application research of intelligent omni-directional vision sensor[J]. Chinese Journal of Sensors and Actuators, 2007, 20(6): 1316-1320. (in Chinese)
[11] Yamazawa K, Yagi Y, Yachida M. Obstacle detection with omnidirectional image sensor hyperOmni vision[C]//IEEE International Conference on Robotics and Automation, 1995 (5): 1062-1067.
[12] Wang Qing, Tang Yiping, Zong Mingli, et al. Design of vertically aligned binocular omnistereo vision sensor[J]. Eurasip Journal on Image & Video Processing, 2010, 7525(1): 1-24.
[13] Scaramuzza D, Martinelli A, Siegwart R. A toolbox for easily calibrating omnidirectional cameras[C]//IEEE International Conference on Intelligent Systems, 2006(6): 5695-5701.