[1] J. Heikkila and O. Silven, in Proceedings of IEEE Computer Vision and Pattern Recognition 1106 (1997).
[2] L. Stirling, K. Willcox, P. Ferguson, and D. Newman, Aviation, Space, and Environmental Medicine 80, 522 (2009).
[3] Y. Fujii and K. Shimada, Meas. Sci. Technol. 17, 2705 (2006).
[4] Y. Fujii, K. Shimada, M. Yokota, S. Hashimoto, Y. Sugita, and H. Ito, Rev. Sci. Instrum. 79, 056105 (2008).
[5] Y. Fujii and K. Shinmada, Trans. Jpn. Soc. Aeronaut. Space Sci. 50, 251 (2008).
[6] Y. Fujii, K. Shimada, K. Maru, M. Yokota, S. Hashimoto, N. Nagai, and Y. Sugita, Trans. Jpn. Soc. Aeronaut. Space Sci. Space Technol. Jpn. 7, Th 1 (2009).
[7] Y. Fujii, K. Shimada, and K. Maru, Microgravity Sci. Technol. 22, 115 (2010).
[8] R. Y. Tsai, IEEE J. Robotics and Automation 3, 323 (1987).
[9] J. Zhang, D. Zhu, and Z. Zhang, Acta Opt. Sin. (in Chinese) 28, 1552 (2008).
[10] D. Wu, N. Lu, and J. Ouyang, Acta Opt. Sin. (in Chinese) 28, 482 (2008).
[11] J. Wang, H. Hong, C. Wang, and Y. Zhu, Electronics Optic & Control (in Chinese) 14, (4) 94 (2007).
[12] R. Zhang and J. Liu, Chin. J. Electron Devices (in Chinese) 30, 1618 (2007).
[13] N. Yang, J. Wang, C. Huang, R. Wang, and D. Jin, Tsinghua Univ. (Sci. & Tech.) (in Chinese) 40, (4) 24 (2000).
[14] R. M. Haralick, C. Lee, K. Ottenberg, and M. Nolle, IJCV 13, 592 (1994).
[15] C. Su, Y.-Q. Xu, H. Li, S. Q. Liu, and D. G. Li, Chin. J. Computers (in Chinese) 21, 1084 (1998).
[16] R. Horaud, B. Conio, O. Leboulleux, and B. Lacollt, Computer Vision, Graphics, and Image Processing 47, 33 (1989).
[17] F.-C. Wu and Z.-Y. Hu, J. Software (in Chinese) 14, 682 (2006).
[18] D. Liang, F. Wu, Z. Ruan, and S. Wei, J. University of Science and Technology of China (in Chinese) 32, 192 (2002).
[19] M. A. Penna, Pattern Recognition 24, 533 (1991).
[20] T. Jin, H. Jia, W. Hou, Y. Ryo, N. Norihiro, F. Yusaku, M. Koichi, O. Naoya, and S. Kazuhito, "Study on extraction method of the circle outline and its center in a moving dummy mass" Electronics World (to be published).