Dr. Keehoon Hong Profile

Dr. Keehoon Hong

at ETRI

SPIE Involvement:

Author

Publications (18)

Proceedings Article | 1 April 2024 Poster + Paper

WAVE-UNET: Wavelength-based image reconstruction method using attention UNET for OCT images

Maryam Viqar, Erdem Sahin, Violeta Madjarova, Elena Stoykova, Keehoon Hong

Proceedings Volume 12925, 129254D (2024) https://doi.org/10.1117/12.3006615

KEYWORDS: Optical coherence tomography, Image restoration, Image quality, Calibration, Speckle, Fourier transforms, Point spread functions, Veins, Teeth, Image processing

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Proceedings Article | 15 August 2023 Presentation + Paper

Portable low-cost setup for outdoor implementation of dynamic speckle technique

Mikhail Levchenko, Elena Stoykova, Keehoon Hong, Joongki Park

Proceedings Volume 12618, 126181I (2023) https://doi.org/10.1117/12.2673460

KEYWORDS: Speckle, Portability, Cameras, Image quality, Image resolution, Laser development, Image processing, Image compression, 3D modeling, Speckle pattern

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Proceedings Article | 14 May 2019 Presentation

Hologram image quality of binary modulating SLM-based holographic display (Conference Presentation)

Jinwoong Kim, Joongki Park, Keehoon Hong, Yongjun Lim, Jeho Nam

Proceedings Volume 10997, 109970L (2019) https://doi.org/10.1117/12.2520266

KEYWORDS: Image quality, Holograms, Binary data, Modulation, Holography, Digital micromirror devices, Spatial light modulators, Image resolution, Prototyping, Displays

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Proceedings Article | 21 May 2018 Paper

Improving image quality of 360-degree viewable holographic display system by applying a speckle reduction technique and a spatial filtering

Yongjun Lim, Keehoon Hong, Hayan Kim, Minsik Park, Jinwoong Kim

Proceedings Volume 10676, 106760Q (2018) https://doi.org/10.1117/12.2315654

KEYWORDS: Holography, Holograms, Speckle, Displays, Speckle pattern, Digital holography, Computer generated holography, Digital micromirror devices

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Proceedings Article | 16 May 2018 Presentation + Paper

Design options for 360 degree viewable table-top digital color holographic displays

Jinwoong Kim, Keehoon Hong, Yongjun Lim, Jae-Han Kim, Minsik Park

Proceedings Volume 10666, 1066602 (2018) https://doi.org/10.1117/12.2309281

KEYWORDS: Holograms, Spatial light modulators, Mirrors, Optical design, Holography, Digital micromirror devices, Digital holography, Image resolution, Multiplexing, Image quality

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Proceedings Article | 19 February 2018 Paper

Viewing window position control on holographic projection system by electrically focused tunable lens

Keehoon Hong, Kwan-Jung Oh, Hyon-Gon Choo, Yongjun Lim, Minsik Park

Proceedings Volume 10558, 105580R (2018) https://doi.org/10.1117/12.2286025

KEYWORDS: Holography, Spatial light modulators, Holograms, 3D image reconstruction, Digital holography, Spatial filters, Computer generated holography, Diffraction

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Proceedings Article | 26 June 2017 Paper

An optical method for compensating phase discontinuity in a 360-degree viewable tabletop digital holographic display system

Yongjun Lim, Keehoon Hong, Hayan Kim, Hyon-gon Choo, Minsik Park, Jinwoong Kim

Proceedings Volume 10335, 1033510 (2017) https://doi.org/10.1117/12.2271507

KEYWORDS: Spatial filters, Phase imaging, 3D image reconstruction, Digital micromirror devices, Holograms, Holography, Digital holography, Displays, Spatial light modulators, Computer generated holography, Charge-coupled devices, Multiplexing, Micromirrors

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SPIE Press Book | 21 January 2016

Design and Implementation of Autostereoscopic Displays

Keehoon Hong, Soon-gi Park, Jisoo Hong, Byoungho Lee

KEYWORDS: 3D displays, 3D image processing, LCDs, Integral imaging, 3D image reconstruction, Imaging systems, Autostereoscopic displays, Image resolution, Spatial resolution, Cameras

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Design and Implementation of Autostereoscopic Displays

Proceedings Article | 15 October 2015 Paper

Lens customization method to minimize aberration in integral imaging

Matheus Miranda, Jonghyun Kim, Keehoon Hong, Byoungho Lee

Proceedings Volume 9676, 96760X (2015) https://doi.org/10.1117/12.2200946

KEYWORDS: Monochromatic aberrations, Lens design, Spherical lenses, Image quality, Integral imaging, 3D image reconstruction, 3D image processing, Light, Aspheric lenses, Image resolution

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SPIE Journal Paper | 9 June 2015 Open Access

Glasses-free randot stereotest

Jonghyun Kim, Jong-Young Hong, Keehoon Hong, Hee Kyung Yang, Sang Beom Han, Jeong-Min Hwang, Byoungho Lee

JBO, Vol. 20, Issue 06, 065004, (June 2015) https://doi.org/10.1117/12.10.1117/1.JBO.20.6.065004

KEYWORDS: 3D displays, Glasses, Displays, Calibration, 3D image processing, Stereo holograms, Charge-coupled devices, Stars, Human-machine interfaces, LCDs

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Proceedings Article | 11 March 2015 Paper

A glasses-free random dot stereoacuity test using a multi-view display system

Jonghyun Kim, Keehoon Hong, Hee Kyung Yang, Jeong-Min Hwang, Byoungho Lee

Proceedings Volume 9385, 93850G (2015) https://doi.org/10.1117/12.2080560

KEYWORDS: 3D displays, 3D image processing, Displays, LCDs, Calibration, Glasses, Human-machine interfaces, Stereoscopic displays, Polarization, Image fusion

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Proceedings Article | 11 November 2014 Paper

Holographic generation of non-diffractive beams

Byoungho Lee, Dawoon Choi, Keehoon Hong, Kyookeun Lee, Kyoung-Youm Kim

Proceedings Volume 9271, 92710J (2014) https://doi.org/10.1117/12.2072182

KEYWORDS: Holography, Spatial light modulators, Multiplexing, Holograms, Mirrors, Beam splitters, Fourier transforms, Modulation, Wave propagation, Laser beam diagnostics

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Proceedings Article | 27 November 2012 Paper

Experiment verification of hologram generation using intensity images

Ni Chen, Keehoon Hong, Jiwoon Yeom, Jae-Hyun Jung, Byoungho Lee

Proceedings Volume 8559, 85590F (2012) https://doi.org/10.1117/12.1000098

KEYWORDS: Holograms, Wavefronts, 3D image reconstruction, Digital holography, Holography, Charge-coupled devices, Image processing, Interferometry, Near field optics, Wave propagation

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Proceedings Article | 6 February 2012 Paper

Three-dimensional floating display by a concave cylindrical mirror and rotational wedge prisms

Gilbae Park, Jonghyun Kim, Keehoon Hong, Byoungho Lee

Proceedings Volume 8280, 82800C (2012) https://doi.org/10.1117/12.909823

KEYWORDS: Prisms, Mirrors, 3D displays, Digital micromirror devices, Projection systems, 3D image processing, Calibration, Micromirrors, Cameras

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Proceedings Article | 17 September 2011 Paper

Computational reacquisition of a real three-dimensional object for integral imaging without matching of pickup and display lens array

Jae-Hyun Jung, Jisoo Hong, Gilbae Park, Keehoon Hong, Byoungho Lee

Proceedings Volume 8134, 81340B (2011) https://doi.org/10.1117/12.893134

KEYWORDS: 3D image processing, 3D image reconstruction, 3D displays, Integral imaging, 3D acquisition, Clouds, Optical flow, 3D modeling, OpenGL, Image processing

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Proceedings Article | 2 February 2011 Paper

Accommodation measurement according to angular resolution density in three-dimensional display

Youngmin Kim, Keehoon Hong, Jongshin Kim, Hee Kyung Yang, Jeong-Min Hwang, Byoungho Lee

Proceedings Volume 7956, 79560Q (2011) https://doi.org/10.1117/12.874011

KEYWORDS: Spatial resolution, 3D image processing, 3D displays, Eye, 3D image reconstruction, Image resolution, Integral imaging, Autostereoscopic displays, Visualization, Lenticular lenses

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Proceedings Article | 8 September 2010 Paper

Disparity estimation based on integral imaging in sub-pixel resolution using maximum a priori (MAP) registration

Jae-Hyun Jung, Keehoon Hong, Jae-Hyeung Park, Indeok Chung, Byoungho Lee

Proceedings Volume 7797, 779711 (2010) https://doi.org/10.1117/12.860061

KEYWORDS: Image registration, Integral imaging, 3D image processing, Image resolution, 3D displays, Detection and tracking algorithms, Quantization, Image processing, Image restoration, Optimization (mathematics)

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Proceedings Article | 18 February 2009 Paper

High-definition integral floating display with multiple spatial light modulators

Joohwan Kim, Keehoon Hong, Jae-Hyun Jung, Gilbae Park, James Lim, Youngmin Kim, Joonku Hahn, Sung-Wook Min, Byoungho Lee

Proceedings Volume 7237, 72370T (2009) https://doi.org/10.1117/12.807565

KEYWORDS: Spatial light modulators, 3D image processing, Integral imaging, 3D displays, Imaging systems, Imaging arrays, Image resolution, LCDs, Manufacturing, Holograms

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Showing 5 of 18 publications

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