Estimation of blood concentration at different skin depths using a spectroscopic camera

Lin, Mengyao; Iuchi, Kaito; Ono, Kamui; Ogawa‐Ochiai, Keiko; Tsumura, Norimichi

doi:10.1007/s10015-022-00738-x

Cited by 2 publications

(1 citation statement)

References 19 publications

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“…In these fields, it is known that human skin has a layered structure consisting of an epidermal layer containing melanin pigments and a dermal layer containing hemoglobin pigments [ 20 ]. Since these pigments are the elements that determine skin color, blood volume and oxygen saturation can be estimated from skin color [ 21 , 22 ]. Furthermore, the relationship between pigment and appearance is also used in the development of cosmetics [ 23 ].…”

Section: Introductionmentioning

confidence: 99%

Fabrication of a Human Skin Mockup with a Multilayered Concentration Map of Pigment Components Using a UV Printer

Nagasawa

Yamamoto

Arai³

et al. 2022

J. Imaging

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In this paper, we propose a pipeline that reproduces human skin mockups using a UV printer by obtaining the spatial concentration map of pigments from an RGB image of human skin. The pigment concentration distributions were obtained by a separating method of skin pigment components with independent component analysis from the skin image. This method can extract the concentration of melanin and hemoglobin components, which are the main pigments that make up skin tone. Based on this concentration, we developed a procedure to reproduce a skin mockup with a multi-layered structure that is determined by mapping the absorbance of melanin and hemoglobin to CMYK (Cyan, Magenta, Yellow, Black) subtractive color mixing. In our proposed method, the multi-layered structure with different pigments in each layer contributes greatly to the accurate reproduction of skin tones. We use a UV printer because the printer is capable of layered fabrication by using UV-curable inks. As the result, subjective evaluation showed that the artificial skin reproduced by our method has a more skin-like appearance than that produced using conventional printing.

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Section: Introductionmentioning

confidence: 99%

Fabrication of a Human Skin Mockup with a Multilayered Concentration Map of Pigment Components Using a UV Printer

Nagasawa

Yamamoto

Arai³

et al. 2022

J. Imaging

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Optical simulation and dynamic skin model to disentangle the cardiovascular behaviors in photoplethysmographic signal

Blanquer,

Vasseur,

Vernay

et al. 2024

Tissue Optics and Photonics III

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Photoplethysmography (PPG) is a high-speed optical measurement technique that resolves fast physiological phenomena and offers promising applications in the medical field. In order to have a better understanding of the cardiovascular dynamics through the PPG signal, we propose a comprehensive multilayered and optical biophysical skin model from the wrist that is able to simulate some characteristic physiological properties and the complex cardiovascular dynamics. Thanks to this dynamic optical model, we are able to identify and disentangle the microvascular, arterial and venous contributions retrieved from the PPG signal signature.

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Estimation of blood concentration at different skin depths using a spectroscopic camera

Cited by 2 publications

References 19 publications

Fabrication of a Human Skin Mockup with a Multilayered Concentration Map of Pigment Components Using a UV Printer

Fabrication of a Human Skin Mockup with a Multilayered Concentration Map of Pigment Components Using a UV Printer

Optical simulation and dynamic skin model to disentangle the cardiovascular behaviors in photoplethysmographic signal

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