2025

1. Ni Chen, Edmund Y. Lam, "Embracing uncertainties in computational imaging," In SPIE Photonics Asia Conference 13719: Holography, Diffractive Optics, and Applications XV, Beijing, China, oct. 2025.
2. Chutian Wang, Shuo Zhu, Jingqian Wu, Ni Chen, Edmund Y. Lam, "Differentiable Event-based Holography," In Computational Optical Sensing and Imaging (COSI), Seattle, USA, aug. 2025.
3. Ni Chen^†*, Yang Wu^†, Chao Tan, Liangcai Cao, Jun Wang, Edmund Y. Lam*, "Uncertainty-Aware Fourier Ptychography," Light: Science & Applications 14 (236) jul., 2025.
4. Ni Chen*, David J. Brady, Edmund Y. Lam, "Differentiable Imaging: Progress, Challenges, and Outlook," Advanced Devices & Instrumentation 7 (0117) : 34, jul., 2025.
5. Hong-Chao Liu, Wen Chen, Ni Chen, Shuyuan Xiao, "Computational imaging and its applications," Journal of Optics 27 (6) : 060201, may., 2025. Guest Editor of Journal of Optics focus issue on Computational imaging and its applications
6. Ni Chen, Edmund Y. Lam, "Differentiable pixel-super-resolution lensless imaging," Optics Letters 50 (5) : 1180–1183, jan., 2025.
7. Jiabao Wang, Yang Wu, Jun Wang, Ni Chen*, "Align-free multi-plane phase retrieval," Optics and Laser Technology 181 (2025) : 111784, jan., 2025.
8. Ni Chen, Yanmin Zhu, "Differentiable Imaging: Bridging Physics and Computing," In SPIE Photonics West Conference 13375: AI and Optical Data Sciences VI, San Francisco, USA, jan. 2025.

2024

1. Yang Wu, Jun Wang, Sigurdur Thoroddsen, Ni Chen*, "Single-Shot High-Density Volumetric Particle Imaging Enabled by Differentiable Holography," IEEE Transactions on Industrial Informatics 20 (12) : 13696–13706, dec., 2024.
2. Ni Chen, David J. Brady, "Ptychographic Wavefront Camera," Optics Letters 49 (23) : 6653-6656, nov., 2024.
3. Ni Chen, "Differentiable Optical Imaging," In 4th International Conference on Computational Imaging (CITA 2024), Xiamen, China, sep. 2024. Keynote Speech
4. Ni Chen, David J. Brady, "Differentiable Holography and its Development," In FiO LS Congress: Information Acquisition, Processing and Display, Colorado Convention Center, Denver, Colorado, USA, sep. 2024.
5. Ni Chen, David J. Brady, "Slimming Optical Systems and Boosting Performance with Differentiable Programming," In 14th International Conference on Optics-Photonics Design and Fabrication (ODF‘24), Tucson, AZ, USA, jul. 2024.
6. Xiao Wang, Ni Chen, Chengyu Wang, Johannes Froech, Arka Majumdar, David J. Brady, "Metalens-based snapshot ptychography," In Optica Imaging Congress 2024 (3D, AOMS, COSI, ISA, pcAOP), Toulouse, France, jul. 2024.
7. Jiabao Wang, Yang Wu, Jun Wang*, Ni Chen*, "Adaptive cascade calibrated multi-plane phase retrieval," In Computational Optical Sensing and Imaging (COSI), Toulouse, France, jul. 2024.
8. Yang Wu, Chao Tan, Jun Wang*, Ni Chen*, "Automatic Differentiation-Assisted Fourier Ptychographic Microscopy," In Computational Optical Sensing and Imaging (COSI), Toulouse, France, jul. 2024.
9. Ni Chen, "Differentiable Imaging for Slimming Optics and Maximizing Performance in cell imaging," In Photonic Advances for Biosciences, CLEO 2024, Charlotte, North Carolina, USA, may. 2024.
10. Chao Tan, Jun Wang, Yang Wu, Jie Zhou, Ni Chen, "Fast scaled cylindrical holography based on scaled convolution," Displays 81 (2024) : 102619, jan., 2024.

2023

1. Ni Chen, "Revolutionizing Medical Imaging: Advancements through Differentiable Imaging Techniques," In FiO LS Congress: Fabrication, Design and Instrumentation, Tacoma, WA, USA, oct. 2023.
2. Yang Wu, Jun Wang*, Ni Chen*, "Volumetric particle imaging with differentiable holography," In Digital Holography & 3D Imaging, Boston, USA, oct. 2023.
3. Yang Wu, Xiangli Lei, Jun Wang*, Ni Chen, "Fast optimization of computer-generated holograms using conjugate gradient," Displays 79 (102461) : 102461, sep., 2023.
4. Ni Chen*, Congli Wang, Wolfgang Heidrich, "∂H: Differentiable Holography," Laser & Photonics Reviews 17 (9) : 2200828, jun., 2023.
5. Weijia Zhang, Jun Wang*, Chao Tan, Yang Wu, Yuqi Zhang, Ni Chen, "Large field-of-view holographic Maxwellian display based on spherical crown diffraction," Optics Express 31 (14) : 22660-22670, jun., 2023.
6. Ni Chen, "Differentiable Imaging - Differentiable Programming for Advancing Computational Imaging ," In iCANX Youth Talks, Online, 2.8. 2023.
7. Chaoping Chen*, Ni Chen, Sin-Doo Lee, Gang Li, Yasuhiro Takaki, Frank Wyrowski, "Preface of feature issue on augmented/virtual reality: optics & photonics," Optics Express 31 (6) : 10876-10881, mar., 2023. Guest Associate Editor of Optics Express feature issue on augmented/virtual reality
8. Ni Chen*, Liangcai Cao, T.-C. Poon, Byoungho Lee, Edmund Y. Lam, "Differentiable Imaging: a new tool for computational optical imaging," Advanced Physics Research 2 (3) : 1-11, mar., 2023. Invited

2022

1. Ni Chen, "Computational lensless holographic imaging," In Intenational Conference on Optical and Photonic Engineering, Nanijing, China, nov. 2022. Keynote Speech
2. Congli Wang, Ni Chen, Wolfgang Heidrich*, "dO: A Differentiable Engine for Deep Lens Design of Computational Imaging Systems," IEEE Transactions on Computational Imaging 8 : 905–916, oct., 2022.
3. Ni Chen, "Differentiable diffraction imaging," In SPIE Photonics Asia 2022, Nantong, China, oct. 2022.
4. Ni Chen, "Computational Holography - how computational techniques leverage traditional optical imaging," In School of Science, RMIT, Melbourne, Australia, oct. 2022.
5. Ni Chen*, Congli Wang, Wolfgang Heidrich, "HTRSD: Hybrid Taylor Rayleigh-Sommerfeld diffraction," Optics Express 30 (21) : 37727–37735, sep., 2022.
6. Peiding Wang, Jun Wang, Yang Wu, Chengmin Liu, Han Han, Ni Chen, "Bi-directional phase compensation to accelerate conical hologram generation," Displays 74 (102276) : 102276, sep., 2022.
7. Ni Chen, "Differentiable holographic imaging," In Computational Optical Sensing and Imaging (COSI), Vancouver, Canada, jul. 2022.
8. Ni Chen, "Differential lens design and its applications in imaging," In Forum on Photonic Integrated Circuits 2022, Qingdao, China, jul. 2022.
9. Ni Chen*, Congli Wang, Wolfgang Heidrich, "Compact Computational Holographic Display," Frontiers in Photonics 3 (835962) : 5, feb., 2022.
10. Jun Wang*, Xiangli Lei, Yang Wu, Fengming Jin, Ni Chen, "Holographic display with optical computational Fresnel convolution in broaden distance," Optics Express 30 (3) : 4288-4301, jan., 2022.

2021

1. Ni Chen, "Computational 3D/4D holographic Imaging," In Frontiers in Optics/Laser Science - Industry Tech Talk, OSA Membership Booth/Lounge, Virtual, nov. 2021.
2. Ni Chen, Congli Wang, Wolfgang Heidrich, "Computational 3D/4D holographic imaging," In Frontiers in Optics/Laser Science, Virtual, oct. 2021.
3. Congli Wang, Ni Chen, Wolfgang Heidrich*, "Towards self-calibrated lens metrology by differentiable refractive deflectometry," Optics Express 29 (19) : 30284, sep., 2021.
4. Ni Chen, "New techniques of computational 3D/4D holographic imaging," In Computational Imaging Conference, Hangzhou, China, sep. 2021.
5. Yifan Ma, Jun Wang*, Yang Wu, Fengming Jin, Zekun Zhang, Zhenxing Zhou, Ni Chen, "Large field-of-view holographic display by gapless splicing of multi-segment cylindrical holograms," Applied Optics 60 (24) : 7381–7390, aug., 2021.
6. Zhenxing Zhou, Jun Wang*, Yang Wu, Fengming Jin, Zekun Zhang, Yifan Ma, Ni Chen, "A new holographic display based on conical holography to expand vertical field of view," Optics Express 29 (14) : 22931-22943, jul., 2021.
7. Congli Wang, Ni Chen, Wolfgang Heidrich, "Lens design with automatic differentiation," In Imaging and Systems and Applications, Virtual, jul. 2021.
8. Ni Chen, Congli Wang, Wolfgang Heidrich, "Space-time optical imaging framework: Holographic particle tracking velocimetry," In Digital Holography & 3–D Imaging, Virtual, jul. 2021.
9. Congli Wang, Ni Chen, Wolfgang Heidrich, "Lens design optimization by back-propagation," In International Optical Design Conference, Virtual, jun. 2021. Student paper award
10. Ni Chen^†*, Congli Wang^†, Wolfgang Heidrich, "Snapshot space-time holographic 3D particle tracking velocimetry," Laser & Photonics Reviews 15 (8) : 2100008, 2.8., 2021. |
11. Ni Chen*, Congli Wang, Wolfgang Heidrich, "Holographic 3D Particle Imaging With Model-Based Deep Network," IEEE Transactions on Computational Imaging 7 : 288–296, mar., 2021.
12. Yang Wu, Jun Wang*, Chun Chen, Chan-Juan Liu, Feng-Ming Jin, Ni Chen, "Generation of phase-only hologram for suppression of artifacts based on adaptive weighted Gerchberg-Saxton algorithm," Optics Express 29 (2) : 1412–1427, jan., 2021.

2020

1. Bingyi Li, Jun Wang*, Chun Chen, Yuejia Li, Ruoxue Yang, Ni Chen, "Propagation models between two concentric spheres and hemispherical holography system based on spherical diffraction," Optics Express 28 (21) : 31373-31385, sep., 2020.
2. Ruoxue Yang, Jun Wang*, Chun Chen, Yang Wu, Bingyi Li, Yuejia Li, Ni Chen, Boaz Jessie Jackin, "Fast diffraction calculation for spherical computer-generated hologram using phase compensation method in visible range," Applied Science 10 (17) : 5784, aug., 2020.
3. Ni Chen, Yuqi Li, Wolfgang Heidrich, "Physics-based Holo-Net for three-dimensional imaging," In Digital Holography & 3–D Imaging, Virtual, jun. 2020.
4. Yuejia Li, Jun Wang*, Chun Chen, Bingyi Li, Ruoxue Rang, Ni Chen, "Occlusion culling for computer-generated cylindrical hologram based on space-limit function," Optics Express 8 (12) : 18516–18528, may., 2020. Editors’ pick
5. Zhimin Xu, Si Zuo, Edmund Y. Lam, Byoungho Lee, Ni Chen*, "AutoSegNet: An Automated Neural Network for Image Segmentation," IEEE Access 8 : 1–1, may., 2020.

2019

1. Ni Chen, Byoungho Lee, "Wavefront deconvolution and its applications," In 8th Applied Optics and Photonics China (AOPC 2019), Beijing, China, jul. 2019.
2. Ni Chen, Chao Zuo*, Byoungho Lee, "3D imaging based on depth measurements," Infrared and Laser Engineering 48 (6) : 603013, jun., 2019. Invited paper
3. Ni Chen, Jinsoo Jeong, Byoungho Lee, "Light field compression with holography," In Digital Holography & 3–D Imaging, France, may. 2019.
4. Min Wan, Inbarasan Muniraj, Ra’ed Malallah, Ni Chen, John J Healy, James P Ryle, John T. Sheridan*, "Orthographic projection images based photon counted integral Fourier holography," Applied Optics 58 (10) : 2656-2661, feb., 2019.
5. Ping Su, Shu An, Jianshe Ma*, Ni Chen, "Study on the reduction effect of stereo depth caused by lens aberration in lenticular-based autostereoscopic displays," Applied Science 9 (3) : 380, jan., 2019.
6. Ni Chen*, Edmund Y. Lam, T.-C. Poon, Byoungho Lee, "Sectional hologram reconstruction through complex deconvolution," Optics and Lasers in Engineering 127 (2020) : 125945, 2019.

2018

1. Ni Chen^†, Chao Zuo^†, Edmund Y. Lam, Byoungho Lee*, "3D imaging based on depth measurement technologies," Sensors 18 (11) : 3711, oct., 2018. Review
2. Ao Zhou, Wei Wang, Ni Chen*, Edmund Y. Lam, Byoungho Lee, Guohai Situ, "Fast and robust misalignment correction of Fourier ptychographic microscopy for full field of view reconstruction," Optics Express 26 (18) : 23661-23674, aug., 2018.
3. Ni Chen, Byoungho Lee, "High-resolution light field acquisition without defocus noise," In The 18th International Meeting on Information Display, Busan, Korea, aug. 2018.
4. Ao Zhou, Ni Chen*, Haichao Wang, Guohai Situ, "Analysis of Fourier ptychographic microscopy with half of the captured images," Journal of Optics 20 (9) : 095701, jul., 2018.
5. Ao Zhou, Wei Wang, Ni Chen, Guohai Situ, "Fast light source misalignment correction of Fourier ptychographic microscopy," In Imaging and Applied Optics 2018, Orlando, USA, jun. 2018.
6. Hao Wang, Meng Lyu, Ni Chen, Guohai Situ, "In-line hologram reconstruction with deep learning," In Imaging and Applied Optics 2018, Orlando, USA, jun. 2018.
7. Min Wan, Inbarasan Muniraj, Ni Chen, Derek Cassidy, John J Healy, James P Ryle, John T Sheridan, "Photon-counted integral holography using orthographic projection images," In Unconventional Optical Imaging, Strasbourg, France, may. 2018.
8. Haichao Wang, Ni Chen*, Shanshan Zheng, Jingdan Liu, Guohai Situ, "Fast and high-resolution light field acquisition using defocus modulation," Applied Optics 57 (1) : A250–A256, jan., 2018.
9. Ao Zhou, Guohai Situ, Ni Chen, "Analysis of Fourier ptychographic microscopy with half reduced images," In 2017 International conference on Optical Instruments and Technology: Optoelectronic Imaging/Spectroscopy and Signal Processing Technology, Beijing, China, jan. 2018.

2017

1. Meng Lyu, Wei Wang, Hao Wang, Haichao Wang, Guowei Li, Ni Chen, Guohai Situ*, "Deep-learning-based ghost imaging," Scientific Reports 7 (1) : 17865, dec., 2017. ESI Highly Cited Paper
2. Caihong Wang, Ni Chen*, Yingjie Yu, Guohai Situ, "Phase-only Hologram Encoding with One-dimensional Grating Function," Acta Optica Sinica 37 (09) : 0909001-1–0909001-6, sep., 2017. Cover Image, Highlight and Outstanding paper in Vol. 37, No. 09 of Acta Optica Sinica
3. Zhenbo Ren, Ni Chen, Edmund Y. Lam*, "Automatic focusing for multisectional objects in digital holography using the structure tensor," Optics Letters 42 (9) : 1720–1723, may., 2017.
4. Ni Chen, Haichao Wang, Ao Zhou, Guohai Situ, "High performance light field acquisition," In Digital Holography and Three-Dimensional Imaging, Jeju, Korea, may. 2017.
5. Haichao Wang, Ni Chen, Jingdan Liu, Guohai Situ, "Light field imaging based on defocused photographic images," In Digital Holography & 3–D Imaging, Jeju, Korea, may. 2017.
6. Ni Chen*, Zhenbo Ren, Dayan Li, Edmund Y. Lam, Guohai Situ, "Analysis of the noise in back-projection light field acquisition and its optimization," Applied Optics 56 (13) : F20–F26, feb., 2017.

2016

1. Ni Chen, Zhenbo Ren, Edmund Y. Lam*, "High resolution Fourier hologram synthesis from photographic images through computing the light field," Applied Optics 55 (7) : 1751–1756, mar., 2016. Top Downloaded article on Imaging Systems from Applied Optics and Optics Express in 2015-16
2. Zhenbo Ren, Ni Chen, Edmund Y. Lam*, "Extended focused imaging and depth map reconstruction in optical scanning holography," Applied Optics 55 (5) : 1040-1047, feb., 2016. 15 of the Most Cited articles in Applied Optics between 2016 and 2018
3. Ni Chen, Zhenbo Ren, Haiyan Ou, Edmund Y. Lam*, "Resolution enhancement of optical scanning holography with a spiral modulated point spread function," Photonics Research 4 (1) : 1–6, feb., 2016.

2015

1. Zhenbo Ren, Ni Chen, Antony C. S. Chan, Edmund Y. Lam, "Extended focused imaging in a holographic microscopy imaging system," In 2015 IEEE International conference on Imaging System & Techniques, Macau, China, sep. 2015.
2. Zhenbo Ren, Ni Chen, Antony Chan, Edmund Y. Lam, "Autofocusing of Optical Scanning Holography Based on Entropy Minimization," In Digital Holography & 3-D Imaging Meeting, Shanghai, China, may. 2015.
3. Ni Chen, Zhenbo Ren, Antony Chan, Xing Sun, Edmund Y. Lam, "Depth Enhancement of Optical Scanning Holography with a Spiral Phase Plate," In Digital Holography & 3-D Imaging Meeting, Shanghai, China, may. 2015.

2014

1. Byoungho Lee, Soon-gi Park, Ni Chen, Jiwoon Yeom, Keehoon Hong, Jonghyun Kim, "New technologies and perspective for 3D-imaging," In 2014 IEEE Photonics conference, San Diego, CA, USA, oct. 2014.
2. Ni Chen, Jiwoon Yeom, Byoungho Lee, "Optimized Phase Retrieval Algorithm with Multiple Illuminations," In Fringe 2013, Nurtingen, Germany, sep. 2014.
3. Ni Chen, Jae-Hyeung Park, Jiwoon Yeom, Jonghyun Kim, Gang Li, Byoungho Lee, "Fourier hologram synthesis from two photographic images captured at different focal planes," In Imaging and Applied Optics 2014, Seattle, Washington, USA, jul. 2014.
4. Gang Li, Keehoon Hong, Jiwoon Yeom, Ni Chen, Jae-Hyeung Park, Nam Kim, Byoungho Lee*, "Acceleration method for computer generated spherical hologram calculation of real objects using graphics processing unit (Invited Paper)," Chinese Optics Letters 12 (6) : 060016–60020, jun., 2014.
5. Ni Chen, Jiwoon Yeom, Keehoon Hong, Gang Li, Byoungho Lee*, "Fast-Converging Algorithm for Wavefront Reconstruction based on a Sequence of Diffracted Intensity Images," Journal of the Optical Society of Korea 18 (3) : 217-224, jun., 2014.
6. Soon-gi Park, Jiwoon Yeom, Youngmo Jeong, Ni Chen, Jong-Young Hong, Byoungho Lee*, "Recent issues on integral imaging and its applications," Journal of Information Display 15 (1) : 37–46, jan., 2014. Invited paper

2013

1. Gang Li, Keehoon Hong, Ni Chen, Jae-Hyeung Park, Nam kim, Byoungho Lee, "Acceleration of spherical hologram generation with spherical wavefront recording surface," In Optics and Photonics Taiwan, the International conference 2013, Zhongli, Taiwan, dec. 2013.
2. Ni Chen, Keehoon Hong, Jiwoon Yeom, Byoungho Lee, "Wavefront reconstruction using multiple illuminations and single-shot intensity image," In Photonics conference 2013, Jeju, Korea, nov. 2013.
3. Keehoon Hong, Soon-gi Park, Jiwoon Yeom, Jonghyun Kim, Ni Chen, Kyungsuk Pyun, Chilsung Choi, Sunil Kim, Jungkwuen An, Hong-Seok Lee, U-in Chung, Byoungho Lee*, "Resolution enhancement of holographic printer using a hogel overlapping method," Optics Express 21 (12) : 14047–14055, jun., 2013.
4. Ni Chen, Byoungho Lee, "Wavefront measurement using intensity images," In The Optical Society of Korea Annual Meeting 2013, Daejeon, Korea, feb. 2013.

2012

1. Byoungho Lee, Ni Chen, Keehoon Hong, Jiwoon Yeom, "Hologram generation from intensity images," In the 2th Korea–Japan Workshop on Digital Holography and Information Photonics (DHIP 2012), Tokushima, Japan, nov. 2012. Invited paper
2. Ni Chen, Keehoon Hong, Jiwoon Yeom, Jae-Hyun Jung, Byoungho Lee, "Experiment verification of hologram generation using intensity images," In Information Optics and Optical Data Storage II, Beijing, China, nov. 2012.
3. Ni Chen, Jiwoon Yeom, Byoungho Lee, "Hologram recording using one single color intensity image," In The 12th International Meeting on Information Display, Daegu, Korea, aug. 2012. Outstanding poster paper award
4. Byoungho Lee, Jiwoon Yeom, Ni Chen, "Hologram generation based on incoherent capturing," In 4th International Workshop on Perspectives of Optical Imaging and Metrology, Utsunomiya, Japan, jul. 2012. Invited paper
5. Ni Chen, Jiwoon Yeom, Gibal Park, Jae-Hyeung Park, Byoungho Lee, "Digital hologram recording using transport of intensity equation," In The 4th International conference on 3D system and Applications, Hsinchu, Taiwan, jun. 2012.

2011

1. Jisoo Hong, Youngmin Kim, Hee-Jin Choi, Joonku Hahn, Jae-Hyeung Park, Hwi Kim, Sung-Wook Min, Ni Chen, Byoungho Lee*, "Three-dimensional display technologies of recent interest: principles, status, and issues [Invited]," Applied Optics 50 (34) : H87–H115, dec., 2011. ESI Highly Cited Paper
2. Ni Chen, Jiwoon Yeom, Jae-Hyun Jung, Jae-Hyeung Park, Byoungho Lee*, "Resolution comparison between integral-imaging-based hologram synthesis methods using rectangular and hexagonal lens arrays," Optics Express 19 (27) : 26917–26927, dec., 2011.
3. Ni Chen, Byoungho Lee, "Analysis of the resolution of hologram reconstruction related to the lens array shape based on integral imaging," In the first Korea-Japan Workshop on Digital Holography and Information Photonics, Seoul, Korea, nov. 2011.
4. Ni Chen, Jiwoon Yeom, Jae-Hyeung Park, Byoungho Lee, "High resolution Fourier hologram generation using hexagonal lens array based on integral imaging," In The 11th International Meeting on Information Display, Seoul, Korea, oct. 2011.
5. Ni Chen, Jiwoon Yeom, Jae-Hyeung Park, Byoungho Lee, "High efficiency computer generated multi–plane phase-only hologram algorithm," In 18th conference on Optoelectronics and Optical Communication, Gyeongju, Korea, may. 2011.
6. Jiwoon Yeom, Ni Chen, Jae-Hyeung Park, Byoungho Lee, "Depth resolution improvement based on an integrated phase hologram image," In 18th conference on Optoelectronics and Optical Communication, Gyeongju, Korea, may. 2011. Best paper award
7. Ni Chen, Jiwoon Yeom, Keehoon Hong, Jisoo Hong, Jae-Hyun Jung, Jae-Hyeung Park, Byoungho Lee, "Phase-only hologram generation from multiple defocused images of three-dimensional object," In Digital Holography and Three-Dimensional Imaging, Tokyo, Japan, may. 2011.
8. Ni Chen, Jiwoon Yeom, Keehoon Hong, Jisoo Hong, Jae-Hyeung Park, Byoungho Lee, "Numerical phase–only Fresnel hologram generation of three–dimensional object," In The Optical Society of Korea Annual Meeting 2011, Seoul, Korea, feb. 2011.

2010

1. Ni Chen, Meilan Piao, Jae-Hyeung Park, Nam Kim, "Color reconstruction of 3D objects from single–plane Fourier hologram based on integral imaging," In 10th International Meeting on Information Display, Ilsan, Korea, oct. 2010.
2. Jae-Hyeung Park, Seung–Woo Seo, Ni Chen, Nam Kim, "Hologram synthesis from defocused images captured under incoherent illumination," In Biomedical Optics and 3-D Imaging, Miami, Florida, USA, 2.8. 2010.
3. Jae-Hyeung Park, Seung-Woo Seo, Ni Chen, Nam Kim, "Fourier hologram generation from multiple incoherent defocused images," In Three-Dimensional Imaging, Visualization, and Display 2010 and Display Technologies and Applications for Defense, Security, and Avionics IV, Orlando, Florida, USA, 2.8. 2010.
4. Ni Chen, Jae-Hyeung Park*, Nam Kim, "Parameter analysis of integral Fourier hologram and its resolution enhancement," Optics Express 18 (3) : 2152–2167, jan., 2010.
5. Ni Chen, Jae-Hyeung Park, Nam Kim, "Resolution analysis of Fourier hologram using integral imaging and its enhancement," In Emerging Liquid Crystal Technologies V, San Francisco, California, USA, jan. 2010.

2009

1. Ni Chen, Jae-Hyeung Park, Nam Kim, "Resolution analysis of Fourier hologram using integral imaging," In 20th Anniversary of the Optical Society of Korea, Special Technical Presentation conference, Gwangju, Korea, oct. 2009.
2. Ni Chen, Jae-Hyeung Park, Nam Kim, "Resolution enhanced Fourier Hologram using integral imaging," In 14th 3D Display Media Technical Workshop, Seoul, Korea, jun. 2009.
3. Ni Chen, Nam Kim, Jae-Hyeung Park, Seok–Hee Jeon, "Resolution enhanced Fourier hologram using integral imaging with lens array shifting," In 16th conference on Optoelectronics and Optical Communication, Daechon, Korea, may. 2009.
4. Jae-Hyeung Park, Ni Chen, Ganbat Baasantseren, Min-Young Shin, Nam Kim, "Hologram generation from orthographic view images of three-dimensional object and its optimization," In Three-Dimensional Imaging, Visualization, and Display 2009, Orlando, Florida, USA, may. 2009.

Differentiable Imaging

Differentiable imaging introduces novel methodologies to bridge the gap between physical and numerical models, enabling joint optimization of optical hardware and computational algorithms. This approach facilitates end-to-end co-design of imaging systems.

Learn more: Differentiable Imaging Project

1. Ni Chen^†*, Yang Wu^†, Chao Tan, Liangcai Cao, Jun Wang, Edmund Y. Lam*, "Uncertainty-Aware Fourier Ptychography," Light: Science & Applications 14 (236) jul., 2025.
2. Ni Chen*, David J. Brady, Edmund Y. Lam, "Differentiable Imaging: Progress, Challenges, and Outlook," Advanced Devices & Instrumentation 7 (0117) : 34, jul., 2025.
3. Ni Chen, Edmund Y. Lam, "Differentiable pixel-super-resolution lensless imaging," Optics Letters 50 (5) : 1180–1183, jan., 2025.
4. Yang Wu, Jun Wang, Sigurdur Thoroddsen, Ni Chen*, "Single-Shot High-Density Volumetric Particle Imaging Enabled by Differentiable Holography," IEEE Transactions on Industrial Informatics 20 (12) : 13696–13706, dec., 2024.
5. Ni Chen*, Congli Wang, Wolfgang Heidrich, "∂H: Differentiable Holography," Laser & Photonics Reviews 17 (9) : 2200828, jun., 2023.
6. Ni Chen*, Liangcai Cao, T.-C. Poon, Byoungho Lee, Edmund Y. Lam, "Differentiable Imaging: a new tool for computational optical imaging," Advanced Physics Research 2 (3) : 1-11, mar., 2023. Invited
7. Congli Wang, Ni Chen, Wolfgang Heidrich*, "dO: A Differentiable Engine for Deep Lens Design of Computational Imaging Systems," IEEE Transactions on Computational Imaging 8 : 905–916, oct., 2022.
8. Congli Wang, Ni Chen, Wolfgang Heidrich*, "Towards self-calibrated lens metrology by differentiable refractive deflectometry," Optics Express 29 (19) : 30284, sep., 2021.

Physics-aware Computing

Physics-aware computing develops computational reconstruction algorithms that integrate physical priors and domain knowledge to enhance imaging quality and robustness. By leveraging understanding of the underlying physical processes, these methods achieve superior performance compared to purely data-driven approaches.

1. Ni Chen^†*, Congli Wang^†, Wolfgang Heidrich, "Snapshot space-time holographic 3D particle tracking velocimetry," Laser & Photonics Reviews 15 (8) : 2100008, 2.8., 2021. |
2. Ni Chen*, Congli Wang, Wolfgang Heidrich, "Holographic 3D Particle Imaging With Model-Based Deep Network," IEEE Transactions on Computational Imaging 7 : 288–296, mar., 2021.

Uncertainty-aware Computing

Uncertainty-aware computing advances algorithmic frameworks to identify, quantify, and compensate for system uncertainties such as misalignment, aberrations, and calibration errors. These methods enable robust imaging even under imperfect operating conditions.

1. Jiabao Wang, Yang Wu, Jun Wang, Ni Chen*, "Align-free multi-plane phase retrieval," Optics and Laser Technology 181 (2025) : 111784, jan., 2025.
2. Ao Zhou, Wei Wang, Ni Chen*, Edmund Y. Lam, Byoungho Lee, Guohai Situ, "Fast and robust misalignment correction of Fourier ptychographic microscopy for full field of view reconstruction," Optics Express 26 (18) : 23661-23674, aug., 2018.

Selected Invited Talks

1. Ni Chen, Edmund Y. Lam, "Embracing uncertainties in computational imaging," In SPIE Photonics Asia Conference 13719: Holography, Diffractive Optics, and Applications XV, Beijing, China, oct. 2025.
2. Ni Chen, Yanmin Zhu, "Differentiable Imaging: Bridging Physics and Computing," In SPIE Photonics West Conference 13375: AI and Optical Data Sciences VI, San Francisco, USA, jan. 2025.
3. Ni Chen, "Differentiable Optical Imaging," In 4th International Conference on Computational Imaging (CITA 2024), Xiamen, China, sep. 2024. Keynote Speech
4. Ni Chen, David J. Brady, "Differentiable Holography and its Development," In FiO LS Congress: Information Acquisition, Processing and Display, Colorado Convention Center, Denver, Colorado, USA, sep. 2024.
5. Ni Chen, David J. Brady, "Slimming Optical Systems and Boosting Performance with Differentiable Programming," In 14th International Conference on Optics-Photonics Design and Fabrication (ODF‘24), Tucson, AZ, USA, jul. 2024.
6. Ni Chen, "Differentiable Imaging for Slimming Optics and Maximizing Performance in cell imaging," In Photonic Advances for Biosciences, CLEO 2024, Charlotte, North Carolina, USA, may. 2024.
7. Ni Chen, "Revolutionizing Medical Imaging: Advancements through Differentiable Imaging Techniques," In FiO LS Congress: Fabrication, Design and Instrumentation, Tacoma, WA, USA, oct. 2023.
8. Ni Chen, "Differentiable Imaging - Differentiable Programming for Advancing Computational Imaging ," In iCANX Youth Talks, Online, apr. 2023.
9. Ni Chen, "Computational lensless holographic imaging," In Intenational Conference on Optical and Photonic Engineering, Nanijing, China, nov. 2022. Keynote Speech
10. Ni Chen, "Differentiable diffraction imaging," In SPIE Photonics Asia 2022, Nantong, China, oct. 2022.
11. Ni Chen, "Computational Holography - how computational techniques leverage traditional optical imaging," In School of Science, RMIT, Melbourne, Australia, oct. 2022.
12. Ni Chen, "Differentiable holographic imaging," In Computational Optical Sensing and Imaging (COSI), Vancouver, Canada, jul. 2022.
13. Ni Chen, "Differential lens design and its applications in imaging," In Forum on Photonic Integrated Circuits 2022, Qingdao, China, jul. 2022.
14. Ni Chen, "Computational 3D/4D holographic Imaging," In Frontiers in Optics/Laser Science - Industry Tech Talk, OSA Membership Booth/Lounge, Virtual, nov. 2021.
15. Ni Chen, Congli Wang, Wolfgang Heidrich, "Computational 3D/4D holographic imaging," In Frontiers in Optics/Laser Science, Virtual, oct. 2021.
16. Ni Chen, "New techniques of computational 3D/4D holographic imaging," In Computational Imaging Conference, Hangzhou, China, sep. 2021.
17. Ni Chen, Byoungho Lee, "Wavefront deconvolution and its applications," In 8th Applied Optics and Photonics China (AOPC 2019), Beijing, China, jul. 2019.

Selected Contributed Talks

1. Xiao Wang, Ni Chen, Chengyu Wang, Johannes Froech, Arka Majumdar, David J. Brady, "Metalens-based snapshot ptychography," In Optica Imaging Congress 2024 (3D, AOMS, COSI, ISA, pcAOP), Toulouse, France, jul. 2024.
2. Jiabao Wang, Yang Wu, Jun Wang*, Ni Chen*, "Adaptive cascade calibrated multi-plane phase retrieval," In Computational Optical Sensing and Imaging (COSI), Toulouse, France, jul. 2024.
3. Yang Wu, Chao Tan, Jun Wang*, Ni Chen*, "Automatic Differentiation-Assisted Fourier Ptychographic Microscopy," In Computational Optical Sensing and Imaging (COSI), Toulouse, France, jul. 2024.
4. Yang Wu, Jun Wang*, Ni Chen*, "Volumetric particle imaging with differentiable holography," In Digital Holography & 3D Imaging, Boston, USA, oct. 2023.
5. Congli Wang, Ni Chen, Wolfgang Heidrich, "Lens design with automatic differentiation," In Imaging and Systems and Applications, Virtual, jul. 2021.
6. Ni Chen, Congli Wang, Wolfgang Heidrich, "Space-time optical imaging framework: Holographic particle tracking velocimetry," In Digital Holography & 3–D Imaging, Virtual, jul. 2021.
7. Congli Wang, Ni Chen, Wolfgang Heidrich, "Lens design optimization by back-propagation," In International Optical Design Conference, Virtual, jun. 2021. Student paper award
8. Ni Chen, Yuqi Li, Wolfgang Heidrich, "Physics-based Holo-Net for three-dimensional imaging," In Digital Holography & 3–D Imaging, Virtual, jun. 2020.
9. Ni Chen, Jinsoo Jeong, Byoungho Lee, "Light field compression with holography," In Digital Holography & 3–D Imaging, France, may. 2019.