Smart Computational Imaging (SCI) Lab




Some of our source code and dataset are published below are provided here as a means to ensure timely dissemination of scholarly and technical work on a noncommercial basis. If you use the code/data for your ownpapers and projects, please cite the corresponding paper associated with them. Download the compressed code (e.g. from the corresponding link and then follow the instructions.

if you have a specific question, please feel free to contact me (surpasszuo(AT), zuochao(AT)

Computational Imaging and Microscopy

Adaptive step-size strategy for fourier ptychrography microscopy

[code download] MATLAB source code to implement the adaptive step size strategy for Fourier ptychographic reconstruction. A noisy experimental FPM dataset of an USAF resolution target is also included.


Fast Discrete Cosine Transform (DCT)-based TIE solver

[code download] MATLAB source code for implementing the DCT-based TIE solving. Note that an rectangular aperture needs to be used to generate boundary signal that is required for artifacts-free phase retrieval. If the aperture is not rectangular, an iterative DCT solver needs to be used, which can also be downloaded here [code download].


Optimum derivative estimation using Savitzky-Golay differentiation filter

[code download] MATLAB code for the OSF with the simulated dataset. Note in the simulation, a pure phase object is assumed (single step inverse Laplacian), if one want to retrieve the phase of an absorbing object, then two step-TIE solver based on FFT or DCT should be used instead to get better accuracy.


[code download]

PCA based phase aberration compensation

[code download] MATLAB source code and two digital holograms of microphage cells for


Real-time & high-speed 3-D imaging and systems

Micro Fourier Transform Profilometry (μFTP): three-dimensional shape measurements at 10,000 frames per second

[code download] Source code along with two example datasets for


  • Chao Zuo, Tianyang Tao, Shijie Feng, Lei Huang, Anand Asundi, and Qian Chen, "Micro Fourier Transform Profilometry (μFTP): three-dimensional shape measurements at 10,000 frames per second" (2017)

Real-time 3-D shape measurement with multi-view system

[code download] Source code along with six captured images from two cameras for


Real-time 3-D measurement with 2+2 phase shifting algorithm

   [pattern download] 4 patterns for 2+2 phase shifting algorithm (800*600 pixel resolution for ACER 1161PA)


  • C. Zuo, Q. Chen, G. Guo, S. Feng, and F. Feng, "High-speed three-dimensional profilometry for multiple objects with complex shapes," Optics Express 20(17), 19493-19510 (2012);

Bi-frequency tripolar pulse-width-modulation fringe projection

[pattern download] 5 patterns for TPWM algorithm (608*684 pixel resolution for DLP  Light Crafter).


  • C. Zuo, Q. Chen, G. Guo, S. Feng, F. Feng, R. li and G. Shen, "High-speed three-dimensional shape measurement for dynamic scenes using bi-frequency tripolar pulse-width-modulation fringe projection," Optics and Lasers in Engineering 51(8), 953-960(2013).

  Optimized pulse width modulation pattern strategy

   [pattern download] Four phase-shift fringes in Optimized SPWM algorithm (608*684 pixel resolution for Light Crafter)


Infrared Image Processing

Display and detail enhancement for high-dynamic-range infrared images (DDE)

[code download] Source code along with two high-dynamic-range (HDR) infrared images for


Scene-based nonuniformity correction algorithm based on interframe registration (IRLMS)

[code download] Source code along with one raw infrared video sequence corrupted by FPN for IRLMS algorithm (as well as its improved verison). Note that the masked phase correlation sub-pixel registration algorithm is also included.


Range Limited Bi-Histogram Equalization (RLBHE)

[code download] Source code and test images for implementing RLBHE