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Hyeonseung Yu†, Youngrok Kim†, Daeho Yang, Wontaek Seo, Yunhee Kim, Jong-Young Hong, Hoon Song, Geeyoung Sung, Younghun Sung, Sung-Wook Min* , Hong-Seok Lee*
Nature Communications, 14, 3534 (2023)
While recent research has shown that holographic displays can represent photorealistic 3D holograms in real time, the difficulty in acquiring high-quality real-world holograms has limited the realization of holographic streaming systems. Incoherent holographic cameras, which record holograms under daylight conditions, are suitable candidates for real-world acquisition, as they prevent the safety issues associated with the use of lasers; however, these cameras are hindered by severe noise due to the optical imperfections of such systems. In this work, we develop a deep learning-based incoherent holographic camera system that can deliver visually enhanced holograms in real time. A neural network filters the noise in the captured holograms, maintaining a complex-valued hologram format throughout the whole process. Enabled by the computational efficiency of the proposed filtering strategy, we demonstrate a holographic streaming system integrating a holographic camera and holographic display, with the aim of developing the ultimate holographic ecosystem of the future.
A perception-driven hybrid decomposition for multi-layer accommodative displays
Hyeonseung Yu, Mojtaba Bemana, Marek Wernikowski, Michał Chwesiuk, Okan Tarhan Tursun, Gurprit Singh, Karol Myszkowski, Radosław Mantiuk, Hans-Peter Seidel, Piotr Didyk
IEEE Transaction on Visualization and Computer Graphics (TVCG), 25, 5 (2019)
Multi-focal plane and multi-layered light-field displays are promising solutions for addressing all visual cues observed in the real world. Unfortunately, these devices usually require expensive optimizations to compute a suitable decomposition of the input light field or focal stack to drive individual display layers. Although these methods provide near-correct image reconstruction, a significant computational cost prevents real-time applications. A simple alternative is a linear blending strategy which decomposes a single 2D image using depth information. This method provides real-time performance, but it generates inaccurate results at occlusion boundaries and on glossy surfaces. This paper proposes a perception-based hybrid decomposition technique which combines the advantages of the above strategies and achieves both real-time performance and high-fidelity results.
Ultrahigh-definition dynamic 3D holographic display by active control of volume speckle fields
Hyeonseung Yu, KyeoReh Lee, Jongchan Park, YongKeun Park
Nature Photonics, 11, 186–192 (2017)
Holographic displays generate realistic 3D images that can be viewed without the need for any visual aids. They operate by generating carefully tailored light fields that replicate how humans see an actual environment. However, the realization of high-performance, dynamic 3D holographic displays has been hindered by the capabilities of present wavefront modulator technology. In particular, spatial light modulators have a small diffraction angle range and limited pixel number limiting the viewing angle and image size of a holographic 3D display. In this work, we present an alternative method to generate dynamic 3D images by controlling volume speckle fields significantly enhancing image definition. We use this approach to demonstrate a dynamic display of micrometre-sized optical foci in a volume of 8 mm × 8 mm × 20 mm.
Measuring Large Optical Transmission Matrices of Disordered Media
Hyeonseung Yu†, Timothy R. Hillman†, Wonshik Choi, Ji Oon Lee, Michael S. Feld, Ramachandra R. Dasari, and YongKeun Park
Physical Review Letters, 111, 153902 (2013)
In this work, we report a measurement of the large optical transmission matrix (TM) of a complex turbid medium. The TM is acquired using polarization-sensitive, full-field interferometric microscopy equipped with a rotating galvanometer mirror. It is represented with respect to input and output bases of optical modes, which correspond to plane wave components of the respective illumination and transmitted waves. The modes are sampled so finely in angular spectrum space that their number exceeds the total number of resolvable modes for the illuminated area of the sample. As such, we investigate the singular value spectrum of the TM in order to detect evidence of open transmission channels, predicted by random-matrix theory. Our results comport with theoretical expectations, given the experimental limitations of the system. We consider the impact of these limitations on the usefulness of transmission matrices in optical measurements.
Full list of publications
26. Single‐Panel Complex Holographic Display with Three‐Phase Covalent Macropixel
Yunhee Kim, Jonghyun Lee, Sehwan Na, Hoon Song, Soobin Kim, Hyeonseung Yu, Jungkwon Ahn, Chilseong Choi, Hongsuk Kim, Hong‐Seok Lee*, Hwi Kim*
Laser & Photonics Reviews, 240080 (2024)
Hyeonseung Yu†, Youngrok Kim†, Daeho Yang, Wontaek Seo, Yunhee Kim, Jong-Young Hong, Hoon Song, Geeyoung Sung, Younghun Sung, Sung-Wook Min* , Hong-Seok Lee*
Nature Communications, 14, 3534 (2023)
24. Diffraction-engineered holography: Beyond the depth representation limit of holographic displays
Daeho Yang, Wontaek Seo, Hyeonseung Yu, Sun Il Kim, Bongsu Shin, Chang-Kun Lee, Seokil Moon, Jungkwuen An, Jong-Young Hong, Geeyoung Sung, Hong-Seok Lee
Nature Communications, 13, 6012 (2022)
David Dunn, Okan Tursun, Hyeonseung Yu, Piotr Didyk, Karol Myszkowski, Henry Fuchs
IEEE International Symposium on Mixed and Augmented Reality (ISMAR), 2020
22. A perception-driven hybrid decomposition for multi-layer accommodative displays
Hyeonseung Yu, Mojtaba Bemana, Marek Wernikowski, Michał Chwesiuk, Okan Tarhan Tursun, Gurprit Singh,
Karol Myszkowski, Radosław Mantiuk, Hans-Peter Seidel, Piotr Didyk
Transaction on Visualization and Computer Graphics (TVCG) Special Issue on IEEE Virtual Reality and 3D User Interfaces, presented in IEEE VR (2019)
21. Ultrahigh enhancement of light focusing through disordered media controlled by Megapixel modes
Hyeonseung Yu, KyeoReh Lee, YongKeun Park
Optics Express, 25(7), 8036 (2017)
20. Universal sensitivity of speckle intensity correlations to wavefront change in light diffusers
KyungDuk Kim, Hyeonseung Yu, KyeoReh Lee, YongKeun Park, arXiv:1610.01671
Scientific Reports, 7, 44435 (2017)
19. Ultrahigh-definition dynamic 3D holographic display by active control of volume speckle fields
Hyeonseung Yu, KyeoReh Lee, Jongchan Park, YongKeun Park
Nature Photonics, 11, 186–192 (2017)
Hyeonseung Yu, Peter Lee , YoungJu Jo , KyeoReh Lee , Valery V. Tuchin , Yong Jeong , YongKeun Park
Journal of Biomedical Optics, 21(12), 121510 (2016)
17. Label-free optical quantification of structural alterations in Alzheimer's disease
Moosung Lee, Eeksung Lee, JaeHwang Jung, Hyeonseung Yu, Kyoohyun Kim, Shinhwa Lee, Yong Jeong, YongKeun Park
Scientific Reports, 6, 31034 (2016)
16. Remote sensing of pressure inside deformable microchannels using light scattering in Scotch tape
Kyungduk Kim, Hyeonseung Yu, Joonyoung Koh, Jung H. Shin, Wonhee Lee, YongKeun Park
Optics Letters, 41(8), 1837 (2016)
15. Energy leakage in partially measured scattering matrices of disordered media
Hyeonseung Yu, KyeoReh Lee, YongKeun Park
Physical Review B, 93, 104202 (2016)
14. In vivo deep tissue imaging using wavefront shaping optical coherence tomography
Hyeonseung Yu†, Peter Lee†, KyeoReh Lee, Jaeduck Jang, Jaeguyn Lim, Wooyoung Jang, Yong Jeong, YongKeun Park
Journal of Biomedical Optics, 21(10), 101406, (2016)
13. Optogenetic control of cell signaling pathway through scattering skull using wavefront shaping
Jonghee Yoon, Minji Lee, KyeoReh Lee, Nury Kim, Jin Man Kim, Jongchan Park, Hyeonseung Yu, Chulhee Choi, Won Do Heo, YongKeun Park
Scientific Reports, 5, 13289 (2015)
12. Measuring large optical reflection matrices of turbid media
Hyeonseung Yu, Jung-Hoon Park, YongKeun Park
Optics Communications, 352, 33-38 (2015)
11. Focusing through turbid media by polarization modulation
Jongchan Park, Jung-Hoon Park, HyeonSeung Yu, YongKeun Park
Optics Letters, 40(8), 1667-1670 (2015)
10. Recent advances in wavefront shaping techniques for biomedical applications
HyeonSeung Yu, Jongchan Park, KyeoReh Lee, Jonghee Yoon, KyungDuk Kim, Shinwha Lee, YongKeun Park
Current Applied Physics, 15(5), 632-641 (2015)
Jongchan Park, HyeonSeung Yu, Jung-Hoon Park, YongKeun Park
Optics Express, 22(20), 24304 (2014)
8. Full-Field Subwavelength Imaging Using a Scattering Superlens
Chunghyun Park, Jung-Hoon Park, Christophe Rodriguez, HyeonSeung Yu, Minkwan Kim, Kyoungsuk Jin, Seungyong Han, Jonghwa Shin, Seung Hwan Ko, Ki Tae Nam, Yong-Hee Lee, Yong-Hoon Cho, YongKeun Park
Physical Review Letters, 113, 113091 (2014)
7. Depth-enhanced 2-D optical coherence tomography using complex wavefront shaping
HyeonSeung Yu†, Jaeduck Jang†, Jaeguyn Lim†, Jung-Hoon Park, Wooyoung Jang, Ji-Yeun Kim, and YongKeun Park
Optics Express, 22(7), 7514 (2014)
6. Measuring Large Optical Transmission Matrices of Disordered Media
HyeonSeung Yu†, Timothy R. Hillman†, Wonshik Choi, Ji Oon Lee, Michael S. Feld, Ramachandra R. Dasari, and YongKeun Park
Physical Review Letters, 111, 153902 (2013)
5. Sub-wavelength light focusing through random nanoparticles
Jung-Hoon Park, Chunghyun Park, HyeonSeung Yu, Jimin Park, Seungyong Han, Jonghwa Shin, Seung Hwan Ko, Ki Tae Nam, Yong-Hoon Cho and YongKeun Park
Nature Photonics, 7, 454-458 (2013)
4. Complex wavefront shaping for optimal depth-selective focusing in optical coherence tomography
Jaeduck Jang, Jaeguyn Lim, HyeonSeung Yu, Hyun Choi, Jinyong Ha, Jung-Hoon Park, Wang-Yuhl Oh, Wooyoung Jang, SeongDeok Lee, and YongKeun Park
Optics Express, 21(3), 2890-2902 (2013)
3. Dynamic active wave plate using random nanoparticles
Jung-Hoon Park, Chunghyun Park, HyeonSeung Yu, Yong-Hoon Cho, and YongKeun Park
Optics Express, 20(15), 17010-17016 (2012)
2. Active spectral filtering through turbid media
Jung-Hoon Park, Chunghyun Park, HyeonSeung Yu, Yong-Hoon Cho, and YongKeun Park
Optics Letters, 37(15), 3261-3263 (2012)
1. Fourier-transform light scattering of individual colloidal clusters
HyeonSeung Yu†, HyunJoo Park†, Youngchan Kim, Mahn Won Kim, and YongKeun Park
Optics Letters, 37(13), 2577-2579 (2012)
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