Prof. Youngwoon Choi Profile

Prof. Youngwoon Choi

Associate Professor at Korea Univ

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Author

Publications (12)

SPIE Journal Paper | 24 June 2021 Open Access

Multichannel near-infrared spectroscopy brain imaging system for small animals in mobile conditions

Seung-Ho Paik, Seung Hyun Lee, Ju-Hee Kim, Shin-Young Kang, Zephaniah Phillips, Youngwoon Choi, Beop-Min Kim

NPh, Vol. 8, Issue 02, 025013, (June 2021) https://doi.org/10.1117/12.10.1117/1.NPh.8.2.025013

KEYWORDS: Near infrared spectroscopy, Visualization, Head, Optical fibers, Brain, Imaging systems, Hemodynamics, Brain imaging, Multichannel imaging systems, Visual cortex

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Proceedings Article | 9 March 2020 Presentation

Monitoring cognitive effects of childhood ADHD using diffuse optical tomography (Conference Presentation)

Zephaniah Phillips, Seung-ho Paik, Shin-Young Kang, Youngwoon Choi, Bung-Nyun Kim, Beop Min Kim

Proceedings Volume 11225, 112250A (2020) https://doi.org/10.1117/12.2545534

KEYWORDS: Diffuse optical tomography, Visualization, Hemodynamics

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Proceedings Article | 22 February 2019 Paper

Shadow rendering for improved volumetric visualization in real time 4D-OCT

Hyeonseog Jeong, Hyung-Jin Kim, Min Gyu Hyeon, Youngwoon Choi, Beop-Min Kim

Proceedings Volume 10867, 1086734 (2019) https://doi.org/10.1117/12.2510923

KEYWORDS: Visualization, Optical coherence tomography, Volume rendering, Microsurgery, Data acquisition, Computing systems, Data processing, Surgery, Digital video recorders, Image processing

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SPIE Journal Paper | 9 June 2018 Open Access

Quantification of focal adhesion dynamics of cell movement based on cell-induced collagen matrix deformation using second-harmonic generation microscopy

Yong Guk Kang, Hwanseok Jang, Taeseok Daniel Yang, Jacob Notbohm, Youngwoon Choi, Yongdoo Park, Beop-Min Kim

JBO, Vol. 23, Issue 06, 065001, (June 2018) https://doi.org/10.1117/12.10.1117/1.JBO.23.6.065001

KEYWORDS: Collagen, Second-harmonic generation, Microscopy, 3D image processing, Wound healing, Tissues, Cancer, 3D metrology, Luminescence, Signal detection

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Proceedings Article | 15 March 2018 Presentation

Removal of back-reflection noise at ultrathin imaging probes by the single-core illumination and wide-field detection (Conference Presentation)

Changhyeong Yoon, Munkyu Kang, Jin Hee Hong, Taeseok Yang, Jingchao Xing, Hongki Yoo, Youngwoon Choi, Wonshik Choi

Proceedings Volume 10502, 1050214 (2018) https://doi.org/10.1117/12.2288116

KEYWORDS: Signal detection, Spatial resolution, Sensors, Image transmission, Endoscopy, Diagnostics, Endoscopes, Lenses, Natural surfaces, Interference (communication)

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Proceedings Article | 19 April 2017 Presentation

Real time imaging kernel based on Monte Carlo-determined photon paths (Conference Presentation)

Zephaniah Phillips, Sung-Woo Kim, Seung-Ho Paik, Youngwoon Choi, Joon-Kyung Seong, Beop-Min Kim

Proceedings Volume 10051, 1005111 (2017) https://doi.org/10.1117/12.2251693

KEYWORDS: Real time imaging, Brain mapping, Neuroimaging, Hemodynamics, Monte Carlo methods, Near infrared spectroscopy, Photon transport, Brain, Oxygen, Tissues

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Proceedings Article | 19 April 2017 Presentation

Investigation of prefrontal cerebral hemodynamics during quantitative autonomic testing using NIRS (Conference Presentation)

Zephaniah Phillips, Seung-Ho Paik, Yoohwan Kim, Byung-Jo Kim, Youngwoon Choi, Beop-Min Kim

Proceedings Volume 10050, 1005008 (2017) https://doi.org/10.1117/12.2250711

KEYWORDS: Current controlled current source, Near infrared spectroscopy, Nervous system, Blood pressure, Heart, Hemodynamics, Diagnostics, Neurophotonics

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Proceedings Article | 19 April 2017 Presentation

High-resolution image reconstruction for GRIN rod lens probe (Conference Presentation)

Hyung-Jin Kim, Kwan Jun Park, Taeseok Yang, Wonshik Choi, Beop-Min Kim, Youngwoon Choi

Proceedings Volume 10040, 100400T (2017) https://doi.org/10.1117/12.2251768

KEYWORDS: Optical design, Image resolution, GRIN lenses, Digital holography, Distortion, Image quality, Interferometry, Wavefronts, Imaging devices, Image restoration

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Proceedings Article | 27 April 2016 Presentation

Biophotonic applications of eigenchannels in a scattering medium (Conference Presentation)

Moonseok Kim, Wonjun Choi, Youngwoon Choi, Changhyeong Yoon, Wonshik Choi

Proceedings Volume 9717, 97170R (2016) https://doi.org/10.1117/12.2213169

KEYWORDS: Scattering, Biophotonic applications, Scattering media, Light scattering, Glasses, Skin, Tissues, Tissue optics, Polarization, Reflectivity

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Proceedings Article | 27 April 2016 Presentation

High-resolution and ultra-thin endo-microscopy using a GRIN rod lens (Conference Presentation)

Hyung-Jin Kim, Changhyeong Yoon, Taeseok Yang, Wonshik Choi, Beop-Min Kim, Youngwoon Choi

Proceedings Volume 9691, 96910F (2016) https://doi.org/10.1117/12.2209228

KEYWORDS: GRIN lenses, Image processing, Optical aberrations, Endoscopes, Optical design, Lens design, Image resolution, Wavefronts, Optical testing, Scattering media

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SPIE Journal Paper | 23 February 2012 Open Access

Three-dimensional differential interference contrast microscopy using synthetic aperture imaging

Moonseok Kim, Youngwoon Choi, Wonshik Choi, Christopher Fang-Yen, Yongjin Sung, Ramachandra Dasari, Michael Feld, Kwanhyung Kim

JBO, Vol. 17, Issue 02, 026003, (February 2012) https://doi.org/10.1117/12.10.1117/1.JBO.17.2.026003

KEYWORDS: Digital image correlation, Microscopy, 3D image processing, Objectives, Synthetic aperture microscopy, Image enhancement, Stereoscopy, Synthetic aperture imaging, Image processing, 3D image enhancement

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Proceedings Article | 11 February 2012 Paper

A reflection-mode configuration for enhanced light delivery through turbidity

Timothy Hillman, Youngwoon Choi, Niyom Lue, Yongjin Sung, Ramachandra Dasari, Wonshik Choi, Zahid Yaqoob

Proceedings Volume 8227, 82271T (2012) https://doi.org/10.1117/12.909735

KEYWORDS: Spatial light modulators, Signal detection, Wavefronts, Light scattering, Scattering, Tissue optics, Optical coherence tomography, Interferometry, Modulation, Microscopy

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Showing 5 of 12 publications

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