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Izumi Nishidate
Researcher at Tokyo University of Agriculture and Technology
Publications - 136
Citations - 1049
Izumi Nishidate is an academic researcher from Tokyo University of Agriculture and Technology. The author has contributed to research in topics: Scattering & Diffuse reflectance infrared fourier transform. The author has an hindex of 15, co-authored 129 publications receiving 878 citations. Previous affiliations of Izumi Nishidate include Muroran Institute of Technology & University of Tokyo.
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Estimation of melanin and hemoglobin in skin tissue using multiple regression analysis aided by Monte Carlo simulation
TL;DR: A method using a multiple regression analysis aided by a Monte Carlo simulation for diffuse reflectance spectra from the skin tissue to estimate the concentrations of melanin and blood and the oxygen saturation in human skin tissue was proposed.
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Estimation of Melanin and Hemoglobin Using Spectral Reflectance Images Reconstructed from a Digital RGB Image by the Wiener Estimation Method
TL;DR: In vivo experiments on fingers during upper limb occlusion demonstrated the ability of the multi-spectral diffuse reflectance imaging method to evaluate physiological reactions of human skin to estimate melanin concentration, blood concentration, and oxygen saturation in human skin tissue.
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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 +7 more
TL;DR: The results presented in the present paper indicate the possibility of visualizing the hemodynamics of subsurface skin tissue as well as the ability of the developed method to quantitatively visualize the transition from an oxygenated blood to a deoxygenated blood in dermis.
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Unconstrained cardiorespiratory and body movement monitoring system for home care.
TL;DR: An unconstrained respiratory rate (RR) and heart rate (HR) monitoring system to be used during sleeping and is feasible for the combined long-term monitoring of a person's RR and HR with sleep posture changes and may be helpful for practical use in the home.
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Visualizing of skin chromophore concentrations by use of RGB images
TL;DR: In vivo imaging of a human hand during forearm occlusion and Monte Carlo simulation of light transport specifies a relation between the chromophore concentrations and Commission Internationale de l'Eclairage XYZ, which are compatible with the common RGB working space.