[1] Li Y, Di J, Ma C, et al. Quantitative phase microscopy for cellular dynamics based on transport of intensity equation[J]. Optics Express, 26, 586-593(2018).

[2] Tian X L, Yu W, Meng X, et al. Real-time quantitative phase imaging based on transport of intensity equation with dual simultaneously recorded field of view[J]. Opt Lett, 41, 1427-1430(2016).

[3] Cai S S, Zheng L F, Zeng B X, et al. Quantitative phase imaging based on transport-of-intensity equation and differential interference contrast microscope and its application in breast cancer diagnosis[J]. Chinese Journal of Lasers, 45, 0307015(2018).

[4] Zuo C, Chen Q, Sun J S, et al. Non-interferometric phase retrieval and quantitative phase microscopy based on transport of intensity equation: A review[J]. Chinese Journal of Lasers, 43, 0609002(2016).

[5] Lu X Y, Zhao C L, Cai Y J. Research progress on methods and applications for phase reconstruction under partially coherent illumination[J]. Chinese Journal of Lasers, 47, 0500016(2020).

[6] Koshi Komuro, Takanori Nomura. Quantitative phase imaging using transport of intensity equation with multiple bandpass filters[J]. Appl Opt, 55, 5180-5186(2016).

[7] Cheng H, Xiong B L, Wang J C, et al. Phase retrieval based on registration progressive compensation algorithm[J]. Acta Photonica Sinica, 43, 0609002(2016).

[8] Cheng H, Lv Q Q, Wei S. Rapid phase retrieval using SLM based on transport of intensity equation[J]. Infrared and Laser Engineering, 47, 0722003(2018).

[9] Zhang Q, Wang F M, Guo Y Q, et al. Design of microscope autofocus system[J]. Mechanical Engineering & Automation, 181-183(2016).

[10] Yang Y, Zhao Y, Yang M, et al. Research on the hardware automatic focusing system in microscope based on PSD[J]. Journal of Mechanical & Electrical Engineering, 33, 47-51(2016).

[11] Tian X, Meng X, Yu M, et al. In-focus quantitative intensity and phase imaging with the numerical focusing transport of intensity equation method[J]. Journal of Optics, 18(2016).

[12] Cheng H, Wang R, Ye Y Q, et al. Transport of intensity equation method based on edge detection and duty ratio fusion[J]. Journal of Optics, 22(2020).

[13] Zuo C, Li J, Sun J, et al. Transport of intensity equation: a tutorial[J]. Optics and Lasers in Engineering, 135, 106187(2020).

[14] Liu B B, Yu Y J, Wu X Y, et al. Applicable conditions of phase retrieval based on transport of intensity equation[J]. Optics and Precision Engineering, 23, 77-84(2015).

[15] Cheng H, Wang J C, Gao Y L, et al. Phase unwrapping based on transport of intensity equation with two wavelengths[J]. Opt Eng, 58, 054103(2019).

[16] Wang Z, Bovik A C, Sheikh H R, et al. Image quality assessment: from error visibility to structural similarity[J]. IEEE Transactions on Image Processing, 13, 600-612(2004).