Zobrazeno 1 - 10
of 236
pro vyhledávání: '"Yoshihisa Aizu"'
Publikováno v:
Sensors, Vol 13, Iss 6, Pp 7902-7915 (2013)
A multi-spectral diffuse reflectance imaging method based on a single snap shot of Red-Green-Blue images acquired with the exposure time of 65 ms (15 fps) was investigated for estimating melanin concentration, blood concentration, and oxygen saturati
Externí odkaz:
https://doaj.org/article/6f22a10f1e74489c907d28967cd91435
Autor:
Yoshihisa Aizu, Naomichi Yokoi
Publikováno v:
Optical Review. 28:440-448
We have previously presented a blood perfusion parameter by means of the spatial contrast of speckle patterns observed for blood perfusion in skin tissue and a blood vessel. This parameter permits us to visualize a relative blood perfusion distributi
Publikováno v:
Optical Review. 27:233-245
This paper presents a numerical study on simulated spectra and point spread functions in the database that we constructed by moderate grouping of nine layers in a skin model. The database is used for identification of a simulated skin reflectance spe
Publikováno v:
Nippon Laser Igakkaishi. 40:331-338
Autor:
Manabu Sato, Satoko Kawauchi, Yoshihisa Aizu, Shunichi Sato, Izumi Nishidate, Kyuichi Niizeki
Publikováno v:
Nippon Laser Igakkaishi. 40:359-368
Publikováno v:
Journal of Biomedical Optics. 26
Publikováno v:
Journal of Biomedical Optics
Significance: Untreated methemoglobinemia may cause severe hypoxemia and even death when methemoglobin levels in the blood stream exceed 70%. Although CO-oximetry can be used to monitor the response to treatment for methemoglobinemia, it is costly an
Publikováno v:
Journal of Biomedical Optics
Guest editors Toyohiko Yatagai, Osamu Matoba, Yoshihisa Aizu, Yasuhiro Awatsuji, and Yuan Luo introduce the articles in the Special Series on Biomedical Imaging and Sensing.
Publikováno v:
Biomedical Imaging and Sensing Conference 2020.
Publikováno v:
Biomedical Imaging and Sensing Conference 2020.
In this study, we report spatial resolution enhancement and image quality improvement of a digital holographic microscopy using speckle patterns generated from a moving diffuser. In this method, speckle patterns are produced by moving a diffuser in t