Dr. Tomonori Yuasa Profile

Dr. Tomonori Yuasa

Researcher at Muroran Institute of Technology

SPIE Involvement:

Author

Publications (22)

Proceedings Article | 20 September 2023 Paper

Estimation on the penetration depth of light propagating near the illuminated area in skin

T. Yuasa, I. Kojima, H. Kawamura, H. Tamura, K. Kikuchi, Y. Aizu

Proceedings Volume 12608, 126080U (2023) https://doi.org/10.1117/12.3007910

KEYWORDS: Skin, Tissues, Photons, Light wave propagation, Light scattering, Light absorption, Reflectivity, Monte Carlo methods, Statistical modeling, Scattering

Read Abstract +

Proceedings Article | 20 September 2023 Paper

Development of measurement system for subsurface scattering light of skin and analysis of its age-related changes

K. Kikuchi, M. Katsuyama, T. Shibata, J. Hardeberg, T. Yuasa, Y. Aizu

Proceedings Volume 12608, 1260813 (2023) https://doi.org/10.1117/12.3007926

KEYWORDS: Reflection, Skin, Light scattering, Projection systems, Polarization, Optical properties, Cameras, Light sources and illumination, Tunable filters, Optical filters

Read Abstract +

Proceedings Article | 15 June 2020 Paper

Skin reflectance spectra with different parameter conditions in Monte Carlo simulation and agarose-gel phantom experiment

Kaustav Das, Takaaki Maeda, Izumi Nishidate, Tomonori Yuasa, Hideki Funamizu, Yoshihisa Aizu

Proceedings Volume 11521, 1152113 (2020) https://doi.org/10.1117/12.2573297

KEYWORDS: Monte Carlo methods, Skin, Reflectivity, Scattering, Blood, Absorption, Databases, Tissues, Tissue optics, Agriculture

Read Abstract +

Proceedings Article | 15 June 2020 Paper

Investigation on estimation of absorption and scattering parameters using skin spectral reflectance database

Tomonori Yuasa, Takehiro Ohya, Kaustav Das, Takaaki Maeda, Hideki Funamizu, Yoshihisa Aizu

Proceedings Volume 11521, 115210J (2020) https://doi.org/10.1117/12.2573298

KEYWORDS: Skin, Reflectivity, Absorption, Scattering, Tissues, Databases, Tissue optics, Photons, Light scattering, Monte Carlo methods

Read Abstract +

Proceedings Article | 11 July 2019 Paper

Construction of spectral reflectance database for estimation of absorption and scattering parameters in skin tissue

Tomonori Yuasa, Tomoki Hashisaka, Yuji Masuda, Takaaki Maeda, Hideki Funamizu, Yoshihisa Aizu

Proceedings Volume 11074, 110742O (2019) https://doi.org/10.1117/12.2526693

KEYWORDS: Skin, Reflectivity, Scattering, Databases, Absorption, Tissue optics, Light scattering, Error analysis

Read Abstract +

Proceedings Article | 11 July 2019 Paper

Investigation of skin conditions producing similar reflectance spectra but different point spread functions in Monte Carlo simulation

Kaustav Das, Yuta Kobori, Tomoki Hashisaka, Takehiro Ohya, Tomonori Yuasa, Hideki Funamizu, Yoshihisa Aizu

Proceedings Volume 11074, 110741W (2019) https://doi.org/10.1117/12.2526716

KEYWORDS: Skin, Point spread functions, Reflectivity, Monte Carlo methods, Tissue optics, Scattering, Absorption, Photons, Optical properties, Computer simulations

Read Abstract +

Proceedings Article | 7 September 2018 Paper

Investigation of temporal response in finger blood flow and concentration change in occlusion test on human arm using bio-speckle patterns

Tomonori Yuasa, Naomichi Yokoi, Hideki Funamizu, Yoshihisa Aizu

Proceedings Volume 10834, 108341S (2018) https://doi.org/10.1117/12.2319585

KEYWORDS: Blood, Blood circulation, Speckle, Speckle pattern, Blood pressure, Skin, CCD cameras, Signal detection, Laser tissue interaction, Tissues

Read Abstract +

Proceedings Article | 28 July 2017 Paper

Development of skin tissue phantom having a shape of sulcus cutis and crista cutis with lower temporal deterioration

Tomonori Yuasa, Yutaro Nagamori, Takaaki Maeda, Hideki Funamizu, Yoshihisa Aizu

Proceedings Volume 10412, 104120U (2017) https://doi.org/10.1117/12.2284766

KEYWORDS: Skin, Tissues

Read Abstract +

Proceedings Article | 28 July 2017 Paper

Estimation of individual response in finger blood concentration change under occlusion on human arm using speckle patterns

Naomichi Yokoi, Tomomi Shinohara, Syunya Okazaki, Hideki Funamizu, Masaki Kyoso, Yuichi Shimatani, Tomonori Yuasa, Yoshihisa Aizu

Proceedings Volume 10411, 104110S (2017) https://doi.org/10.1117/12.2283517

KEYWORDS: Blood, Speckle pattern, Image processing, Speckle imaging

Read Abstract +

Proceedings Article | 18 April 2017 Paper

Quantitative evaluation on the depth and spread of light propagation in skin tissue using Monte Carlo simulation

Syoki Takahashi, Takaaki Maeda, Hideki Funamizu, Tomonori Yuasa, Yoshihisa Aizu

Proceedings Volume 10251, 102511O (2017) https://doi.org/10.1117/12.2269434

KEYWORDS: Absorption, Scattering, Light scattering, Tissues, 3D modeling, Blood, Skin, Tissue optics, Monte Carlo methods, Photon transport

Read Abstract +

Proceedings Article | 18 April 2017 Paper

Monte Carlo simulation of skin image using a skin model with surface texture

Kota Mizunuma, Yuto Hanabusa, Takaaki Maeda, Hideki Funamizu, Tomonori Yuasa, Yoshihisa Aizu

Proceedings Volume 10251, 102511P (2017) https://doi.org/10.1117/12.2269449

KEYWORDS: Skin, Monte Carlo methods, Natural surfaces, Tissues, Tissue optics, Reflectivity, Absorption, Photons, Scattering, Blood

Read Abstract +

Proceedings Article | 18 April 2017 Paper

Color reproduction of human skin by spectral reflectance using RGB images and the Wiener estimation method

Kiyomi Sato, Shota Miyazawa, Hideki Funamizu, Tomonori Yuasa, Izumi Nishidate, Yoshihisa Aizu

Proceedings Volume 10251, 102511Q (2017) https://doi.org/10.1117/12.2269446

KEYWORDS: Color reproduction, Skin, RGB color model, Reflectivity, Monte Carlo methods, CCD cameras, Error analysis, Databases, Color difference, Blood

Read Abstract +

Proceedings Article | 18 April 2017 Paper

Development of skin tissue phantom having a shape of sulcus cutis and crista cutis

Yutaro Nagamori, Tomonori Yuasa, Takaaki Maeda, Hideki Funamizu, Yoshihisa Aizu

Proceedings Volume 10251, 102511N (2017) https://doi.org/10.1117/12.2269431

KEYWORDS: Silicon, Tissue optics, Optical properties, Natural surfaces, Prototyping, Blood, Optical testing, Skin, Tissues, Reflectivity

Read Abstract +

Proceedings Article | 18 June 2013 Paper

Noncontact plethysmographic imaging based on diffuse reflectance spectroscopy using a digital RGB camera

Izumi Nishidate, Ryohei Matsuda, Noriyuki Tanaka, Takaaki Maeda, Tomonori Yuasa, Tetsuya Yuasa, Kyuichi Niizeki, Yoshihisa Aizu

Proceedings Volume 8798, 87980D (2013) https://doi.org/10.1117/12.2032555

KEYWORDS: RGB color model, Skin, Blood, Curium, Cameras, Diffuse reflectance spectroscopy, Chromophores, Digital cameras, Monte Carlo methods, Tissues

Read Abstract +

SPIE Journal Paper | 17 December 2012 Open Access

Visualization of peripheral vasodilative indices in human skin by use of red, green, blue images

Izumi Nishidate, Noriyuki Tanaka, Tatsuya Kawase, Takaaki Maeda, Tomonori Yuasa, Yoshihisa Aizu, Tetsuya Yuasa, Kyuichi Niizeki

JBO, Vol. 18, Issue 06, 061220, (December 2012) https://doi.org/10.1117/12.10.1117/1.JBO.18.6.061220

KEYWORDS: Skin, RGB color model, Blood, Capacitance, Resistance, Artificial intelligence, Visualization, Virtual colonoscopy, Tissues, Cameras

Read Abstract +

DOWNLOAD PAPER

SPIE Journal Paper | 1 August 2011 Open Access

Noninvasive imaging of human skin hemodynamics using a digital red-green-blue camera

Izumi Nishidate, Noriyuki Tanaka, Tatsuya Kawase, Takaaki Maeda, Tomonori Yuasa, Yoshihisa Aizu, Tetsuya Yuasa, Kyuichi Niizeki

JBO, Vol. 16, Issue 08, 086012, (August 2011) https://doi.org/10.1117/12.10.1117/1.3613929

KEYWORDS: Blood, Skin, RGB color model, Tissues, Monte Carlo methods, Absorption, Oxygen, Mercury, Hemodynamics, Visualization

Read Abstract +

DOWNLOAD PAPER

Proceedings Article | 13 June 2001 Paper

Diffuse reflectance spectra of skin blood vessels and their color analysis

Yoshihisa Aizu, Izumi Nishidate, Naomichi Yokoi, Tomonori Yuasa, Hiromichi Mishina

Proceedings Volume 4317, (2001) https://doi.org/10.1117/12.429623

KEYWORDS: Skin, Blood, Tissues, Diffuse reflectance spectroscopy, Blood vessels, Reflectivity, Color vision, Glasses, Absorption, Natural surfaces

Read Abstract +

Proceedings Article | 8 May 2001 Paper

Color appearance of skin tissues and blood vessels: in-vitro and in-vivo experiments

Izumi Nishidate, Yoshihisa Aizu, Naomichi Yokoi, Tomonori Yuasa, Hiromichi Mishina

Proceedings Volume 4416, (2001) https://doi.org/10.1117/12.427089

KEYWORDS: Tissues, Skin, Veins, Blood, Color difference, In vitro testing, Blood vessels, In vivo imaging, Reflectivity, Natural surfaces

Read Abstract +

Proceedings Article | 21 December 2000 Paper

AMPAC as an intelligent communication core for printing process

Hiromichi Mishina, Tomonori Yuasa

Proceedings Volume 4300, (2000) https://doi.org/10.1117/12.410799

KEYWORDS: Databases, Standards development, Printing, Telecommunications, Data processing, Associative arrays, Process modeling, Intelligence systems, Signals intelligence, Graphic arts

Read Abstract +

Proceedings Article | 21 December 2000 Paper

Intelligent printing system with AMPAC: boot program for printing machine with AMPAC

Tomonori Yuasa, Hiromichi Mishina

Proceedings Volume 4300, (2000) https://doi.org/10.1117/12.410798

KEYWORDS: Printing, Databases, Intelligence systems, Product engineering, Manufacturing, Image quality, Data modeling, Associative arrays, Image processing, Computing systems

Read Abstract +

Proceedings Article | 19 July 1999 Paper

Spectrophotometric investigation of skin blood vessels on the basis of color perception

Yoshihisa Aizu, Masaki Isokawa, Tomonori Yuasa, Hiromichi Mishina, Toshimitsu Asakura

Proceedings Volume 3749, (1999) https://doi.org/10.1117/12.354982

KEYWORDS: Skin, Blood vessels, Tissues, Reflectivity, Blood, Color vision, Veins, Tissue optics, Oxygen, Diffuse reflectance spectroscopy

Read Abstract +

Proceedings Article | 17 May 1999 Paper

Diffuse reflectance spectra of blood vessels within a skin tissue model

Yoshihisa Aizu, Masaki Isokawa, Tomonori Yuasa, Hiromichi Mishina, Toshimitsu Asakura

Proceedings Volume 3599, (1999) https://doi.org/10.1117/12.348363

KEYWORDS: Blood, Skin, Tissues, Reflectivity, Diffuse reflectance spectroscopy, Veins, Blood vessels, Absorption, Glasses, Natural surfaces

Read Abstract +

Showing 5 of 22 publications

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Keywords/Phrases

Search In:

Publication Years