Speckle quantitative phase imaging based on coherence eﬀect compensation

Linpeng Lu; Jiasong Sun; Jialin Zhang; Yao Fan; Qian Chen; Chao Zuo

doi:10.1117/12.2547856

16 October 2019 Speckle quantitative phase imaging based on coherence eﬀect compensation

Linpeng Lu, Jiasong Sun, Jialin Zhang, Yao Fan, Qian Chen, Chao Zuo

Proceedings Volume 11205, Seventh International Conference on Optical and Photonic Engineering (icOPEN 2019); 112050I (2019) https://doi.org/10.1117/12.2547856
Event: Seventh International Conference on Optical and Photonic Engineering (icOPEN 2019), 2019, Phuket, Thailand

Abstract

We present a novel approach to compensate coherence effect via combining the transport of intensity equation (TIE) with look-up table phase compensation (LUT-PC) method. It is the better version of the Speckle-TIE method we demonstrated before on the basis of the quantitative phase imaging camera with a weak diffuser (QPICWD). With the phase gradient ratio theory and the look-up table method, the phase blurring caused by underestimation of phase gradient will be compensated correctly by reasonable rescaling. The LUT-PC SpeckleTIE method has the evident predominance of speediness since it only needs one slightly defocused speckle image in one time owing to that the reference speckle image can be captured beforehand. The deblurring achieved by this method improves the imaging resolution to the theoretical partial coherence limit with good robustness, reducing artifacts and improving the accuracy and contrast. The experimental results show the effectiveness of the technique.

Citation Download Citation

Linpeng Lu, Jiasong Sun, Jialin Zhang, Yao Fan, Qian Chen, and Chao Zuo "Speckle quantitative phase imaging based on coherence eﬀect compensation", Proc. SPIE 11205, Seventh International Conference on Optical and Photonic Engineering (icOPEN 2019), 112050I (16 October 2019); https://doi.org/10.1117/12.2547856

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available