[1] F. Zernike, Phys. 1, 689 (1934).
[2] R. Navarro, J. Arines, and R. Rivera, Opt. Express 17, 24269 (2009).
[3] X. Pan, S. P. Veetil, C. Liu, Q. Lin, and J. Zhu, Chin. Opt. Lett. 11, 021103 (2013).
[4] S. Niu, J. Shen, W. Liao, C. Liang, and Y. Zhang, Chin. Opt. Lett. 11, 022201 (2013).
[5] A. Khotanzad, and Y. H. Hong, IEEE Trans. Pattern Anal. Mach. Intell. 12, 489 (1990).
[6] X. Gao, Q. Wang, X. LI, D. Tao, and K. Zhang, IEEE Tans. Image Process. 20, 2738 (2011).
[7] Z. Liu, Q. Li, Z. Xia, and Q. Wang, Appl. Opt. 51, 7529 (2012).
[8] Y. Sheng and L. Shen, J. Opt. Soc. Am. A 11, 1748 (1994).
[9] G.-M. Dai, J. Opt. Soc. Am. A 23, 539 (2006).
[10] A. J. E. M. Janssen and P. Dirksen, J. Micro/Nanolith. MEMS MOEMS 5, 030501 (2006).
[11] J. Schwiegerling, Opt. Lett. 36, 3076 (2011).
[12] G. A. Papakostas, Y. S. Boutalis, D. A. Karras, and B. G. Mertzios, IET Comput. Vis. 1, 11 (2007).