[1] J. Li, Z. Liu. Appl. Opt., 55, 8070(2016).

[2] B. Lu, F. Wei, Z. Zhang, D. Xu, Z. Pan, D. Chen, H. Cai. Chin. Opt. Lett., 9, 091402(2015).

[3] K. Cheng, J. Dill. IEEE Trans. Geosci. Remote Sens., 52, 5765(2014).

[4] V. Sanchez. IEEE Trans. Biomed. Eng., 60, 397(2013).

[5] A. Karami. Int. Soc. Opt. Photonics, 9643, 96431J(2015).

[6] L. Wang, S. Zhao. Photon. Res., 4, 240(2016).

[7] J. Zabalza, J. Ren, J. Ren, Z. Liu, S. Marshall. Appl. Opt., 53, 4440(2014).

[8] L. Zhang, D. Liang, B. Li, Y. Kang, Z. Pan, D. Zhang, X. Ma. Photon. Res., 4, 115(2016).

[9] T. Yang, J. Zhu, G. Jin. Chin. Opt. Lett., 14, 060801(2016).

[10] Q. Cheng. Chin. Opt. Lett., 13, S11003(2015).

[11] K. Pearson. Trans. R. Soc. Lond., 187, 253(1896).

[12] J. Li, F. Xing, T. Sun, Z. You. Sci. World J., 2014, 738735(2014).

[13] I. Blane, J. Bartrina-Rapesta. IEEE Trans. Geosci. Remote Sens., 48, 2854(2010).

[14] F. Khelifi, A. Bouridane, F. Kurugollu. IEEE Trans. Multimedia, 10, 316(2008).

[15] J. González-Conejero, J. Bartrina-Rapesta, J. Serra-Sagristà. IEEE Geosci. Remote Sens. Lett., 7, 251(2010).

[16] Y. Li, Q. Li, J. Hu, Y. Zhao. Chin. Opt. Lett., 13, S11101(2015).