Joowon Lim
École Polytechnique Fédérale de Lausanne
34 Papers
39 Citations
Joowon Lim is an academic researcher from École Polytechnique Fédérale de Lausanne. The author has contributed to research in topics: Tomography & Iterative reconstruction. The author has an hindex of 9, co-authored 27 publications. Previous affiliations of Joowon Lim include KAIST.
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Papers
Comparative study of iterative reconstruction algorithms for missing cone problems in optical diffraction tomography.
TL;DR: Various existing iterative reconstruction algorithms are systematically compared for mitigating the missing cone problem in optical diffraction tomography and three representative regularization schemes, edge preserving, total variation regularization, and the Gerchberg-Papoulis algorithm were evaluated.
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High-fidelity optical diffraction tomography of multiple scattering samples
TL;DR: An iterative reconstruction scheme for optical diffraction tomography that exploits the split-step non-paraxial (SSNP) method as the forward model in a learning tomography scheme that maximizes the information retrieved from measurements, relying less on prior assumptions about the sample.
Stain-free identification of cell nuclei using tomographic phase microscopy in flow cytometry
Daniel Pirone,Joowon Lim,Francesco Merola,Lisa Miccio,Martina Mugnano,Vittorio Bianco,Flora Cimmino,Feliciano Visconte,Anna Montella,Mario Capasso,Achille Iolascon,Pasquale Memmolo,Demetri Psaltis,Pietro Ferraro +13 more
TL;DR: In this paper , a method based on statistical inference was proposed to identify the cell nucleus using a refractive index tomogram of stain-free cells reconstructed through the tomographic phase microscopy in flow cytometry mode.
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Three-dimensional tomography of red blood cells using deep learning
Joowon Lim,Ahmed B. Ayoub,Demetri Psaltis +2 more
- 25 Mar 2020
TL;DR: This work accurately reconstruct three-dimensional (3-D) refractive index (RI) distributions from highly ill-posed two-dimensional measurements using a deep neural network (DNN) and confirms the reconstruction accuracy using the DDA to calculate the 2-D projections of the 3-D reconstructions and compare them to the experimentally recorded projections.
Polarization-sensitive optical diffraction tomography
Amirhossein Saba,Joowon Lim,Ahmed B. Ayoub,Elizabeth E. Antoine,Demetri Psaltis +4 more
- 20 Mar 2021
TL;DR: In this paper, a 3D tomographic reconstruction of the refractive index tensor using 2D scattered fields measured for different illumination angles and polarizations is presented, where the off-diagonal components of the reconstruction convey additional information that is not available in either conventional scalar ODT or 2D polarization microscopy.
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