Work

A 2x2-aperture 4-tap multi-modal tissue imager for multi-band SFDI and MELSCI

Year: 2022

Type: conference-paper

Abstract: We demonstrate simultaneous multi-band spatial frequency domain imaging (SFDI) and blood flow mapping by multi-exposure laser speckle contrast imaging (MELSCI) with a laboratory-designed 2x2-aperture 4-tap CMOS image sensor. The proposed imaging device is composed of an array of sub-image sensors. This multi-aperture configuration realizes multi-wavelength imaging to estimate chromophore concentrations and wavelength-division-multiplexed imaging for multi-band SFDI and MELSCI. For SFDI, 450, 550, 660nm LEDs were used as the light sources of a DMD. For MELSCI, a 785nm LD was used for flood illumination. Reflectance and K2 maps of a human arm before and after an exercise was measured.

DOI: 10.1117/12.2608397

Authors: Yuto Shimada, Kazuki Takada, Hoang S. Nam, Kakeru Miyazaki, Keita Yasutomi, Shoji Kawahito, Christian Crouzet, Bernard Choi, Gordon T. Kennedy, Anthony J. Durkin, Keiichiro Kagawa

Institutions: Shizuoka University, University of California System, University of California, Irvine

Language: English

Topic: Optical Imaging and Spectroscopy Techniques

Subfield: Radiology, Nuclear Medicine and Imaging

Field: Medicine

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: green

OpenAlex ID: W4214940403

FWCI: 0.454

Cites: 11

Cited by: 1

Related to: 10