Prof. Ji Yi Profile

Prof. Ji Yi

Associate Professor at Johns Hopkins Univ

SPIE Involvement:

Editorial Board Member: Neurophotonics | Author

Publications (40)

Proceedings Article | 13 March 2024 Poster

In-vivo monitoring and imaging of RGC transplantation in the living mouse by using dual-channel scanning laser ophthalmoscopy

Zhongqiang Li, Stella Mary, Thomas Johnson, Ji Yi

Proceedings Volume PC12824, PC128241T (2024) https://doi.org/10.1117/12.3005663

KEYWORDS: Transplantation, In vivo imaging, Scanning laser ophthalmoscopy, Angiography, Nervous system, Stem cells, Rhodamine B, Retinal diseases, Retina, Optic nerve

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Proceedings Article | 13 March 2024 Presentation

Cellular resolution mesoscopic oblique plane microscopy (Meso-OPM) for fast dynamic imaging

Dominique Meyer, Ji Yi

Proceedings Volume PC12827, PC128270G (2024) https://doi.org/10.1117/12.3003520

KEYWORDS: Image resolution, Microscopy, Biological imaging, Calcium, Water, Imaging systems, Brain, Visualization, Vacuum chambers, Ultrafast imaging

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Proceedings Article | 13 March 2024 Presentation

Large-scale dynamic imaging by mesoscopic oblique plane microscopy and computational augmentation

Ji Yi

Proceedings Volume PC12857, PC1285701 (2024) https://doi.org/10.1117/12.3012548

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Proceedings Article | 13 March 2024 Presentation

Non-invasive measurement of optical properties in coral tissue and skeleton using Inverse spectroscopic optical coherence tomography (ISOCT)

Patrick Su, Graham L. Spicer, Aya Eid, James Winkelmann, Ji Yi, Luisa Marcelino, Vadim Backman, Michael Kuhl, Daniel Wangpraseurt, Kasper Brodersen, Erik Trampe

Proceedings Volume PC12856, PC128560B (2024) https://doi.org/10.1117/12.3001803

KEYWORDS: Optical coherence tomography, Tissues, Spectroscopy, Optical spectroscopy, Optical properties, Ocean optics, Tissue optics, Geometrical optics, Pigments, Light scattering

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Proceedings Article | 13 March 2024 Presentation

Multimodal imaging combining VIS-OCT and phosphorescence lifetime SLO for comprehensive vascular structure and function in the mouse retina

Stephanie Nolen, Zhongqiang Li, Jingyu Wang, Ji Yi

Proceedings Volume PC12824, PC1282403 (2024) https://doi.org/10.1117/12.3001132

KEYWORDS: Scanning laser ophthalmoscopy, Phosphorescence, Retina, Multimodal imaging, Image resolution, Two photon imaging, Phase shifts, Oxygen, Doppler tomography, Visible radiation

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Proceedings Article | 3 April 2023 Poster + Paper

Deep learning-based image registration method: with application to Scanning Laser Ophthalmoscopy (SLO) longitudinal images

Yuli Wang, Ji Yi

Proceedings Volume 12464, 124642L (2023) https://doi.org/10.1117/12.2654070

KEYWORDS: Image registration, Scanning laser ophthalmoscopy, Education and training, Feature extraction, Network architectures, Digital signal processing, Retinal diseases, Error analysis, Deformation, Deep learning

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Proceedings Article | 17 March 2023 Presentation

Retinal parafoveal oximetry using visible light optical coherence tomography in health subjects

Jingyu Wang, Weiye Song, Natalie Sadlak, Marissa Fiorello, Manishi Desai, Ji Yi

Proceedings Volume PC12360, PC1236002 (2023) https://doi.org/10.1117/12.2648449

KEYWORDS: Oximetry, Visible radiation, Optical coherence tomography, Retina, Oxygen, Cones

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Proceedings Article | 17 March 2023 Poster

Depth-gated Fourier transform to accelerate spectra recovery in visible-light optical coherence tomography retinal oximetry

Stephanie Nolen, Jingyu Wang, Ji Yi

Proceedings Volume PC12360, PC1236017 (2023) https://doi.org/10.1117/12.2650077

KEYWORDS: Fourier transforms, Oximetry, Optical coherence tomography, Transform theory, Oxygen, Image segmentation, Visible radiation, Spectroscopy, Optical spectroscopy, Eye

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Proceedings Article | 7 March 2022 Presentation

Light sheet in the eye: incoherent volumetric imaging in the human retina by confocal oblique scanning laser ophthalmoscopy (CoSLO)

Wenjun Shao, Ji Yi

Proceedings Volume PC11941, PC119410O (2022) https://doi.org/10.1117/12.2610134

KEYWORDS: Retina, Confocal microscopy, Scanning laser ophthalmoscopy, Eye, 3D image processing, Sensors, Scattering, Retinal scanning, Optical imaging, Optical coherence tomography

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Proceedings Article | 7 March 2022 Presentation

Linear k-domain wide-field and micron-resolution visible light human retinal optical coherence tomography

Weiye Song, Wenjun Shao, Wei Yi, Ji Yi

Proceedings Volume PC11941, PC1194102 (2022) https://doi.org/10.1117/12.2608869

KEYWORDS: Imaging systems, Visible radiation, Optical coherence tomography, Spectroscopy, Retina, Cameras, Retinal scanning, Prisms, Phase shifts, Macula

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Proceedings Article | 2 March 2022 Presentation

Mesoscopic Oblique Plane Microscopy (MOPM) with near-isotropic resolutions by utilizing diffractive light sheet illumination

Wenjun Shao, Ji Yi

Proceedings Volume PC11971, PC119710G (2022) https://doi.org/10.1117/12.2610506

KEYWORDS: Microscopy, Virtual point source, Objectives, Neurons, Diffraction gratings, Calibration, Brain

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Proceedings Article | 1 August 2021 Presentation

Multiplexed cytometry by deep virtual staining from multi-contrast microscopy

Shiyi Cheng, Sipei Fu, Yumi Kim, Weiye Song, Yunzhe Li, Yujia Xue, Ji Yi, Lei Tian

Proceedings Volume 11804, 118041D (2021) https://doi.org/10.1117/12.2594123

KEYWORDS: Microscopy, Multiplexing, Luminescence, Reflectivity, Pathology, Diffraction, Backscatter

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Proceedings Article | 5 March 2021 Presentation

Programmable LED array reflectance microscopy for multi-contrast imaging

Weiye Song, Alex Matlock, Sipei Fu, Xiaodan Qin, Hui Feng, Christopher Gabel, Lei Tian, Ji Yi

Proceedings Volume 11653, 116530H (2021) https://doi.org/10.1117/12.2578905

KEYWORDS: Reflectivity, Microscopy, Microscopes, Imaging arrays, Backscatter, Phase contrast, Switching, Optical lithography, Imaging systems, Light emitting diodes

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Proceedings Article | 5 March 2021 Presentation

Multiplexed virtual fluorescence labeling from multi-contrast microscopy by deep learning

Shiyi Cheng, Sipei Fu, Yumi Mun Kim, Ji Yi, Lei Tian

Proceedings Volume 11654, 1165414 (2021) https://doi.org/10.1117/12.2578439

KEYWORDS: Microscopy, Multiplexing, Reflectivity, Luminescence, Transmittance, Scattering, Fluorescent markers, Biology, Backscatter

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Proceedings Article | 5 March 2021 Presentation

Visible and near-infrared optical coherence tomography (vnOCT) in normal, suspect, and glaucomatous eyes

Weiye Song, Sui Zhang, Natalie Sadlak, Marissa Fiorello, Manishi Desai, Ji Yi

Proceedings Volume 11623, 1162311 (2021) https://doi.org/10.1117/12.2578925

KEYWORDS: Optical coherence tomography, Reflectivity, Near infrared, Visible radiation, Visualization, Nerve

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Proceedings Article | 5 March 2021 Presentation

Wide field-of-view volumetric imaging by a mesoscopic scanning oblique plane microscopy

Wenjun Shao, Kivilcim Kilic, Wenqing Yin, Gregory Wirak, Xiaodan Qin, Hui Feng, David Boas, Christopher Gabel, Ji Yi

Proceedings Volume 11629, 116291V (2021) https://doi.org/10.1117/12.2577414

KEYWORDS: Objectives, Microscopy, Visualization, Switching, Stereoscopy, Optical design, Neurons, Luminescence, Image resolution, 3D visualizations

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Proceedings Article | 10 March 2020 Presentation

Inverse spectroscopic optical coherence tomography to measure tissue ultrastructures and functions (Conference Presentation)

Ji Yi

Proceedings Volume 11253, 112530A (2020) https://doi.org/10.1117/12.2546380

KEYWORDS: Tissue optics, Spectroscopy, Optical coherence tomography, Optical spectroscopy, Light scattering, Scattering, Optical properties, Refractive index, Tissues, Biomedical optics

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Proceedings Article | 9 March 2020 Presentation

Visible light optical coherence tomography angiography (vis-OCTA) in human retina for small vessel blood oxygenation (Conference Presentation)

Weiye Song, Steven Ness, Manishi Desai, Ji Yi

Proceedings Volume 11218, 112180A (2020) https://doi.org/10.1117/12.2549090

KEYWORDS: Retina, Optical coherence tomography, Visible radiation, Angiography, Blood, Oximetry, Ophthalmology, In vivo imaging, Nerve, Structured optical fibers

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SPIE Journal Paper | 9 December 2019 Open Access

Special Section Guest Editorial: Advances in Retinal Imaging

Ji Yi, Alfredo Dubra, Sina Farsiu

NPh, Vol. 6, Issue 04, 041101, (December 2019) https://doi.org/10.1117/12.10.1117/1.NPh.6.4.041101

KEYWORDS: Retinal scanning, Optical coherence tomography, Retina, Image quality, Visible radiation, Oxygen, Tissue optics, Nerve, Biology, Ecosystems

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SPIE Journal Paper | 9 July 2019 Open Access

Longitudinal detection of retinal alterations by visible and near-infrared optical coherence tomography in a dexamethasone-induced ocular hypertension mouse model

Weiye Song, Sipei Fu, Shangshang Song, Sui Zhang, Lei Zhang, Steven Ness, Manishi Desai, Ji Yi

NPh, Vol. 6, Issue 04, 041103, (July 2019) https://doi.org/10.1117/12.10.1117/1.NPh.6.4.041103

KEYWORDS: Optical coherence tomography, Retina, Visible radiation, Near infrared, Blood circulation, Oxygen, Mouse models, Eye, Spectroscopy, Blood

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Proceedings Article | 13 March 2019 Presentation

High speed volumetric fluorescein angiography in mouse retina by oblique scanning laser ophthalmoscopy (oSLO) (Conference Presentation)

Ji Yi, Weiye Song, Libo Zhou, Manishi Desai, Steven Ness

Proceedings Volume 10858, 1085806 (2019) https://doi.org/10.1117/12.2510542

KEYWORDS: Scanning laser ophthalmoscopy, OSLO, Angiography, Retina, Luminescence, Confocal microscopy, Retinal scanning, In vivo imaging, Capillaries, Ophthalmic imaging

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Proceedings Article | 7 March 2019 Presentation

A data-quality-control protocol for in vivo oximetry in small vessels by visible light optical coherence tomography (Conference Presentation)

Rongrong Liu, Weiye Song, Vadim Backman, Ji Yi

Proceedings Volume 10867, 108670A (2019) https://doi.org/10.1117/12.2511171

KEYWORDS: In vivo imaging, Oximetry, Optical coherence tomography, Visible radiation, Oxygen, Capillaries, Cancer, Tissues, Data analysis, Hyperoxia

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Proceedings Article | 4 March 2019 Presentation

Intensity-only reflection quantitative phase imaging for biological sample characterization (Conference Presentation)

Alex Matlock, Anne Sentenac, Ji Yi, Lei Tian

Proceedings Volume 10887, 108870L (2019) https://doi.org/10.1117/12.2508564

KEYWORDS: Phase imaging, Imaging systems, Phase measurement, Glasses, Tissues, Interferometry, Biological research, Diffraction, Microscopy, Microscopes

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Proceedings Article | 4 March 2019 Presentation

Fiber-based visible and near infrared optical coherence tomography (vnOCT) enables quantitative elastic light scattering spectroscopy in human retina (Conference Presentation)

Weiye Song, Libo Zhou, Ji Yi

Proceedings Volume 10867, 108671G (2019) https://doi.org/10.1117/12.2510944

KEYWORDS: Optical coherence tomography, Visible radiation, Near infrared, Retina, Spectroscopy, Light scattering, Near infrared spectroscopy, Retinal scanning, Tissue optics, Light sources

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Proceedings Article | 4 March 2019 Presentation

Elastic light scattering spectroscopy in living human retina (Conference Presentation)

Ji Yi

Proceedings Volume 10888, 108880B (2019) https://doi.org/10.1117/12.2513716

KEYWORDS: Retina, Light scattering, Spectroscopy, Visible radiation, Near infrared, Optical coherence tomography, Capillaries, Oximetry, Biophysics, Pathology

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Proceedings Article | 24 April 2017 Presentation

Wavelength-dependent optical properties of melanosomes in retinal pigmented epithelium (Conference Presentation)

Ji Yi, Lei Zhang

Proceedings Volume 10075, 100750A (2017) https://doi.org/10.1117/12.2252693

KEYWORDS: Optical properties, Absorption, Backscatter, Optical coherence tomography, Optical spectroscopy, Spectroscopy, Refractive index, Transmission electron microscopy, Scattering, Anisotropy

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Proceedings Article | 24 April 2017 Presentation

FDTD based model of ISOCT imaging for validation of nanoscale sensitivity (Conference Presentation)

Aya Eid, Di Zhang, Ji Yi, Vadim Backman

Proceedings Volume 10075, 100750F (2017) https://doi.org/10.1117/12.2253058

KEYWORDS: Light wave propagation, Finite-difference time-domain method, Optical coherence tomography, Modeling, Spectroscopy, Statistical analysis, Refractive index, Beam propagation method, Correlation function, Magnetism

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Proceedings Article | 19 April 2017 Presentation

A theoretical model for optical oximetry at the capillary-level by optical coherence tomography (Conference Presentation)

Rongrong Liu, Graham Spicer, Siyu Chen, Hao Zhang, Ji Yi, Vadim Backman

Proceedings Volume 10053, 1005316 (2017) https://doi.org/10.1117/12.2250625

KEYWORDS: Hypoxia, Tumors, Oximetry, Capillaries, Optical coherence tomography, Tissue optics, Blood, Cancer, Scattering, Oxygen

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SPIE Journal Paper | 3 February 2017 Open Access

Theoretical model for optical oximetry at the capillary level: exploring hemoglobin oxygen saturation through backscattering of single red blood cells

Rongrong Liu, Graham Spicer, Siyu Chen, Hao Zhang, Ji Yi, Vadim Backman

JBO, Vol. 22, Issue 02, 025002, (February 2017) https://doi.org/10.1117/12.10.1117/1.JBO.22.2.025002

KEYWORDS: Capillaries, Backscatter, Blood, Oximetry, Oxygen, Refractive index, Mie scattering, Spherical lenses, Optical spheres, Absorption

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SPIE Journal Paper | 15 June 2016 Open Access

Dual-band optical coherence tomography using a single supercontinuum laser source

Siyu Chen, Xiao Shu, Ji Yi, Amani Fawzi, Hao Zhang

JBO, Vol. 21, Issue 06, 066013, (June 2016) https://doi.org/10.1117/12.10.1117/1.JBO.21.6.066013

KEYWORDS: Optical coherence tomography, Near infrared, Retina, Blood circulation, Blood, Angiography, Visible radiation, Absorption, Imaging systems, Laser sources

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Proceedings Article | 27 April 2016 Presentation

ISOCT study of collagen crosslinking of collagen in cancer models (Conference Presentation)

Graham Spicer, Scott Young, Ji Yi, Lonnie Shea, Vadim Backman

Proceedings Volume 9719, 97190M (2016) https://doi.org/10.1117/12.2212035

KEYWORDS: Collagen, Cancer, Tumor growth modeling, Tissue optics, Spectroscopy, Tissues, Optical spectroscopy, Optical coherence tomography, Fractal analysis, Biopsy

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Proceedings Article | 27 April 2016 Presentation

A model for oxygen-dependent backscattering spectroscopic contrast from single red blood cells (Conference Presentation)

Rongrong Liu, Ji Yi, Siyu Chen, Hao Zhang, Vadim Backman

Proceedings Volume 9719, 97190N (2016) https://doi.org/10.1117/12.2212998

KEYWORDS: Blood, Backscatter, Spectroscopy, Absorption, Oxygen, Light scattering, Capillaries, Blood circulation, Mie scattering, Visible radiation

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Proceedings Article | 26 April 2016 Presentation

Visible light optical coherence tomography measure retinal oxygen metabolic response to systemic oxygenation (Conference Presentation)

Ji Yi, Wenzhong Liu, Siyu Chen, Vadim Backman, Nader Sheibani, Christine Sorenson, Amani Fawzi, Robert Linsenmeier, Hao Zhang

Proceedings Volume 9697, 96970I (2016) https://doi.org/10.1117/12.2214803

KEYWORDS: Oxygen, Optical coherence tomography, Visible radiation, Optical testing, Blood circulation, Velocity measurements, Mode conditioning cables, Blood oxygen saturation, Doppler tomography, Phase shifts

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Proceedings Article | 26 April 2016 Presentation

Visible-light OCT to quantify retinal oxygen metabolism (Conference Presentation)

Hao Zhang, Ji Yi, Siyu Chen, Wenzhong Liu, Brian Soetikno

Proceedings Volume 9697, 969721 (2016) https://doi.org/10.1117/12.2214830

KEYWORDS: Optical coherence tomography, Oxygen, Mode conditioning cables, Blood, Velocity measurements, Statistical methods, Computer simulations, Photon transport, Retina, Statistical analysis

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Proceedings Article | 26 April 2016 Presentation

Visible light optical coherence tomography for microvascular oximetry in ocular circulation (Conference Presentation)

Siyu Chen, Ji Yi, Hao Zhang

Proceedings Volume 9697, 96970H (2016) https://doi.org/10.1117/12.2214755

KEYWORDS: Oxygen, Optical coherence tomography, Visible radiation, Oximetry, Carbon dioxide, Arteries, Blood oxygen saturation, Photography, Angiography, Spectroscopy

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SPIE Journal Paper | 1 August 2014 Open Access

Investigating femtosecond-laser-induced two-photon photoacoustic generation

Ben Urban, Ji Yi, Vladislav Yakovlev, Hao Zhang

JBO, Vol. 19, Issue 08, 085001, (August 2014) https://doi.org/10.1117/12.10.1117/1.JBO.19.8.085001

KEYWORDS: Signal attenuation, Scattering, Ultrasonics, Photoacoustic spectroscopy, Absorption, Tissue optics, Luminescence, Laser scattering, Signal detection, Rhodamine B

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SPIE Journal Paper | 18 March 2014 Open Access

Spatially resolved optical and ultrastructural properties of colorectal and pancreatic field carcinogenesis observed by inverse spectroscopic optical coherence tomography

Ji Yi, Andrew Radosevich, Yolanda Stypula-Cyrus, Nikhil Mutyal, Samira Azarin, Elizabeth Horcher, Michael Goldberg, Laura Bianchi, Shailesh Bajaj, Hemant Roy, Vadim Backman

JBO, Vol. 19, Issue 03, 036013, (March 2014) https://doi.org/10.1117/12.10.1117/1.JBO.19.3.036013

KEYWORDS: Error control coding, Tissues, Optical coherence tomography, Tissue optics, Collagen, Image segmentation, Correlation function, Biomedical optics, Cancer, Biopsy

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SPIE Journal Paper | 5 September 2013 Open Access

Ultrastructural alterations in field carcinogenesis measured by enhanced backscattering spectroscopy

Andrew Radosevich, Nikhil Mutyal, Ji Yi, Yolanda Stypula-Cyrus, Jeremy Rogers, Michael Goldberg, Laura Bianchi, Shailesh Bajaj, Hemant Roy

JBO, Vol. 18, Issue 09, 097002, (September 2013) https://doi.org/10.1117/12.10.1117/1.JBO.18.9.097002

KEYWORDS: Biopsy, Error control coding, Optical properties, Backscatter, Cancer, Tissue optics, Spectroscopy, Scattering, Microscopes, Monte Carlo methods

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Proceedings Article | 12 April 2013 Paper

Biomimetic polydopamine coating on gold nanorods for biofunctionalization, imaging, and photothermal therapy

Kvar C. Black, Ji Yi, José Rivera, Daria Zelasko-Leon, Phillip Messersmith

Proceedings Volume 8598, 85980D (2013) https://doi.org/10.1117/12.2005041

KEYWORDS: Gold, Cancer, Optical coherence tomography, Biomimetics, Coating, Nanoparticles, Control systems, Adhesives, Optical imaging, Nanorods

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SPIE Journal Paper | 4 January 2013 Open Access

Automatic retinal vessel segmentation based on active contours method in Doppler spectral-domain optical coherence tomography

Wenzhong Liu, Tan Liu, Wei Song, Ji Yi, Hao Zhang

JBO, Vol. 18, Issue 01, 016002, (January 2013) https://doi.org/10.1117/12.10.1117/1.JBO.18.1.016002

KEYWORDS: Image segmentation, Optical coherence tomography, In vivo imaging, Doppler tomography, Blood circulation, Eye, Phase contrast, Capillaries, Image processing, Image processing algorithms and systems

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Showing 5 of 40 publications

Conference Committee Involvement (1)

Ophthalmic Technologies XXXV

25 January 2025 | San Francisco, California, United States

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