Prof. Junghwan Oh Profile

Prof. Junghwan Oh

Professor at Pukyong National Univ

SPIE Involvement:

Author

Publications (19)

SPIE Journal Paper | 16 June 2017

Second-order fiber interleaving filter based on polarization-diversified loop

Kyongsoo Park, Sungwook Choi, Seul-Lee Lee, Jun Hyeok Jeong, Sun Jae Jeong, Nouaze Joseph Christian, Min Seok Kim, Jihoon Kim, Hyun Wook Kang, Seung Yun Nam, Junghwan Oh, Yong Wook Lee

OE, Vol. 56, Issue 06, 066108, (June 2017) https://doi.org/10.1117/12.10.1117/1.OE.56.6.066108

KEYWORDS: Optical filters, Birefringence, Linear filtering, Polarization, Beam splitters, Switching, Modulators

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Proceedings Article | 27 April 2016 Presentation

Feasibility of laser-integrated high intensity focused ultrasound (HIFU) treatment for bladder tumors: in vitro study (Conference Presentation)

Van Phuc Nguyen, Suhyun Park, Junghwan Oh, Hyun Wook Kang

Proceedings Volume 9689, 96891F (2016) https://doi.org/10.1117/12.2212201

KEYWORDS: Tumors, Ultrasonography, Bladder, In vitro testing, Laser therapeutics, Biomedical optics, Thermal effects, Chemical elements, Transducers, Acoustics

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Proceedings Article | 26 February 2015 Paper

Photoactive dye enhanced tissue ablation for endoscopic laser prostatectomy

Minwoo Ahn, Trung Hau Nguyen, Van Phuc Nguyen, Junghwan Oh, Hyun Wook Kang

Proceedings Volume 9303, 93031D (2015) https://doi.org/10.1117/12.2077096

KEYWORDS: Laser ablation, Laser tissue interaction, Tissue optics, Tissues, Absorption, Prostate, Absorbance, Endoscopy, Laser therapeutics, Natural surfaces

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SPIE Journal Paper | 29 October 2014 Open Access

Feasibility study on photoacoustic guidance for high-intensity focused ultrasound-induced hemostasis

Van Phuc Nguyen, Jeehyun Kim, Kang-lyeol Ha, Junghwan Oh, Hyun Wook Kang

JBO, Vol. 19, Issue 10, 105010, (October 2014) https://doi.org/10.1117/12.10.1117/1.JBO.19.10.105010

KEYWORDS: Acoustics, Arteries, Tissues, Blood, Transducers, Blood vessels, Ultrasonography, Photoacoustic spectroscopy, Tissue optics, Absorption

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Proceedings Article | 4 March 2014 Paper

Blood coagulation using High Intensity Focused Ultrasound (HIFU)

Phuc Nguyen, Junghwan Oh, Hyun Wook Kang

Proceedings Volume 8926, 89261A (2014) https://doi.org/10.1117/12.2037171

KEYWORDS: Arteries, Blood, Acoustics, Transducers, Tissues, Ultrasonography, Photoacoustic spectroscopy, Blood vessels, Absorption, Injuries

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SPIE Journal Paper | 15 November 2012 Open Access

Enhanced photocoagulation with catheter-based diffusing optical device

Hyun Wook Kang, Jeehyun Kim, Junghwan Oh

JBO, Vol. 17, Issue 11, 118001, (November 2012) https://doi.org/10.1117/12.10.1117/1.JBO.17.11.118001

KEYWORDS: Tissue optics, Uterus, Tissues, Laser coagulation, Optical components, Diffusers, In vivo imaging, Laser tissue interaction, Natural surfaces, Prototyping

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SPIE Journal Paper | 1 January 2010 Open Access

Magnetomotive laser speckle imaging

Jeehyun Kim, Junghwan Oh, Bernard Choi

JBO, Vol. 15, Issue 01, 011110, (January 2010) https://doi.org/10.1117/12.10.1117/1.3285612

KEYWORDS: Magnetism, Nanoparticles, Speckle, Blood circulation, Particles, Laser speckle imaging, Tissue optics, Iron, Optical coherence tomography, Capillaries

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SPIE Journal Paper | 1 September 2008 Open Access

Detection of macrophages in atherosclerotic tissue using magnetic nanoparticles and differential phase optical coherence tomography

Junghwan Oh, Marc Feldman, H. Golombek, Jihoon Kim, Pramod Sanghi, Dat Do, J. Jacob Mancuso, Nathaniel Kemp, Mehmet Cilingiroglu, Thomas Milner

JBO, Vol. 13, Issue 05, 054006, (September 2008) https://doi.org/10.1117/12.10.1117/1.2985762

KEYWORDS: Magnetism, Nanoparticles, Tissues, Natural surfaces, Tissue optics, Optical coherence tomography, Iron, Oxides, Interference (communication), Control systems

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Proceedings Article | 13 March 2008 Paper

Automatic real-time capture and segmentation of endoscopy video

Sean Stanek, Wallapak Tavanapong, Johnny Wong, JungHwan Oh, Piet de Groen

Proceedings Volume 6919, 69190X (2008) https://doi.org/10.1117/12.770930

KEYWORDS: Video, Endoscopy, Endoscopes, Video coding, Analytical research, Computer programming, Colon, Inspection, Image analysis, Data processing

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Proceedings Article | 29 March 2007 Paper

Automatic polyp region segmentation for colonoscopy images using watershed algorithm and ellipse segmentation

Sae Hwang, JungHwan Oh, Wallapak Tavanapong, Johnny Wong, Piet de Groen

Proceedings Volume 6514, 65141D (2007) https://doi.org/10.1117/12.709835

KEYWORDS: Image segmentation, Colorectal cancer, Video, Binary data, Edge detection, X-ray computed tomography, Digital filtering, Colon, Cancer, Lung cancer

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SPIE Journal Paper | 1 July 2006 Open Access

Measurement of optical path length change following pulsed laser irradiation using differential phase optical coherence tomography

Jihoon Kim, Junghwan Oh, Thomas Milner

JBO, Vol. 11, Issue 04, 041122, (July 2006) https://doi.org/10.1117/12.10.1117/1.2236289

KEYWORDS: Thermography, Tissue optics, Refractive index, Laser irradiation, Water, Optical testing, Temperature metrology, Biomedical optics, Optical coherence tomography, Systems modeling

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Proceedings Article | 10 March 2006 Paper

Blood detection in wireless capsule endoscopy using expectation maximization clustering

Sae Hwang, JungHwan Oh, Jay Cox, Shou Jiang Tang, Harry Tibbals

Proceedings Volume 6144, 61441P (2006) https://doi.org/10.1117/12.654109

KEYWORDS: Blood, Expectation maximization algorithms, RGB color model, Video, Endoscopy, Intestine, Enteroscopy, Stomach, Data modeling, Visualization

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SPIE Journal Paper | 1 November 2005 Open Access

Optical coherence tomography speckle reduction by a partially spatially coherent source

Jeehyun Kim, Donald Miller, Eunha Kim, Sanghoon Oh, Jung Hwan Oh, Thomas Milner

JBO, Vol. 10, Issue 06, 064034, (November 2005) https://doi.org/10.1117/12.10.1117/1.2138031

KEYWORDS: Speckle, Optical coherence tomography, Multimode fibers, Optical fibers, Spatial coherence, Light, CCD cameras, Reflectivity, Tissue optics, Light sources

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SPIE Journal Paper | 1 November 2005 Open Access

Errata: Optical coherence tomography speckle reduction by a partially spatially coherent source

Jeehyun Kim, Donald Miller, Sanghoon Oh, Thomas Milner, Eunha Kim, Junghwan Oh

JBO, Vol. 10, Issue 06, 069802, (November 2005) https://doi.org/10.1117/12.10.1117/1.2167067

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Proceedings Article | 29 April 2005 Paper

Informative-frame filtering in endoscopy videos

Yong Hwan An, Sae Hwang, JungHwan Oh, JeongKyu Lee, Wallapak Tavanapong, Piet de Groen, Johnny Wong

Proceedings Volume 5747, (2005) https://doi.org/10.1117/12.595622

KEYWORDS: Video, Colon, Endoscopy, Image processing, Edge detection, Fourier transforms, Colorectal cancer, Endoscopes, Image quality, Laparoscopy

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Proceedings Article | 18 December 2003 Paper

Blurry-frame detection and shot segmentation in colonoscopy videos

JungHwan Oh, Sae Hwang, Wallapak Tavanapong, Piet de Groen, Johnny Wong

Proceedings Volume 5307, (2003) https://doi.org/10.1117/12.527108

KEYWORDS: Video, Colon, Image segmentation, Endoscopy, Rectum, Detection and tracking algorithms, Edge detection, Colorectal cancer, Video processing, Visualization

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Proceedings Article | 1 January 2001 Paper

Khanh Vu, Kien Hua, JungHwan Oh

Proceedings Volume 4315, (2001) https://doi.org/10.1117/12.410917

KEYWORDS: Databases, Image processing, Image retrieval, Systems modeling, Feature extraction, Computing systems, Image storage, RGB color model, Electrical engineering, Computer science

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