A novel phase retrieval method from three-wavelength in-line phase-shifting interferograms based on positive negative 2π phase shifts
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Modern Optics"
DOI: 10.1080/09500340.2017.1374480
Abstract: Abstract A new method to extract quantitative phases for each wavelength from three-wavelength in-line phase-shifting interferograms is proposed. Firstly, seven interferograms with positive negative 2π phase shifts are sequentially captured by using the phase-shifting technique.… read more here.
Keywords: phase; three wavelength; line phase; phase shifting ... See more keywords
Quantitative Calibration of Three-Wavelength Road-Condition Sensor Using a Dual-Wavelength Response Ratio
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Access"
DOI: 10.1109/access.2022.3149778
Abstract: Assessing the condition of a road exposed to the atmosphere is crucial for safety. A three-wavelength road-condition sensor is a noncontact sensor that can be used for qualitative recognition and quantitative measurement of road conditions.… read more here.
Keywords: road condition; three wavelength; calibration; wavelength ... See more keywords
Three-wavelength system for practical application in skin oximetry: simultaneous equations with prediction-correction approach
Sign Up to like & getrecommendations! Published in 2020 at "Indonesian Journal of Electrical Engineering and Computer Science"
DOI: 10.11591/ijeecs.v19.i2.pp793-801
Abstract: This paper presented the use of a three-wavelength system coupled with a prediction-correction model for the measurement of a person’s tissue oxygen levels and in the efforts towards the development of a field-portable system. This… read more here.
Keywords: wavelength system; three wavelength; prediction correction; prediction ... See more keywords
Three-wavelength measurement of aerosol absorption using a multi-resonator coupled photoacoustic spectrometer.
Sign Up to like & getrecommendations! Published in 2021 at "Optics express"
DOI: 10.1364/oe.412922
Abstract: Aerosol optical absorption measurements are important for the prediction of climate change, as aerosols directly disturb Earth's radiation balance by absorbing or scattering solar radiation. Although photoacoustic spectroscopy is commonly recognized as one of the… read more here.
Keywords: absorption; aerosol absorption; three wavelength; photoacoustic spectrometer ... See more keywords
Simultaneous three-wavelength unwrapping using external digital holographic multiplexing module.
Sign Up to like & getrecommendations! Published in 2018 at "Optics letters"
DOI: 10.1364/ol.43.001943
Abstract: We present an external interferometric setup that is able to simultaneously acquire three wavelengths of the same sample instance without scanning or multiple exposures. This setup projects onto the monochrome digital camera three off-axis holograms… read more here.
Keywords: three wavelength; wavelength unwrapping; using external; unwrapping using ... See more keywords
Design of liver functional reserve monitor based on three-wavelength from red light to IR
Sign Up to like & getrecommendations! Published in 2018 at "Technology and Health Care"
DOI: 10.3233/thc-174843
Abstract: BACKGROUND: The preoperative evaluation of liver functional reserve is very important to determine the excision of liver lobe for the patients with liver cancer. There already exist many effective evaluation methods, but these ones have… read more here.
Keywords: functional reserve; three wavelength; wavelength red; based three ... See more keywords
Quantitative Analysis of Different Multi-Wavelength PPG Devices and Methods for Noninvasive In-Vivo Estimation of Glycated Hemoglobin
Sign Up to like & getrecommendations! Published in 2021 at "Applied Sciences"
DOI: 10.3390/app11156867
Abstract: Diabetes is a serious disease affecting the insulin cycle in the human body. Thus, monitoring blood glucose levels and the diagnosis of diabetes in the early stages is very important. Noninvasive in vivo diabetes-diagnosis procedures… read more here.
Keywords: three wavelength; estimation; error; wavelength model ... See more keywords
New correction method for the scattering coefficient measurements of a three-wavelength nephelometer
Sign Up to like & getrecommendations! Published in 2021 at "Atmospheric Measurement Techniques"
DOI: 10.5194/amt-14-4879-2021
Abstract: Abstract. The aerosol scattering coefficient is an essential parameter for estimating aerosol direct radiative forcing and can be measured by nephelometers. Nephelometers are problematic due to small errors of nonideal Lambetian light source and angle… read more here.
Keywords: coefficient; coefficient measurements; method; three wavelength ... See more keywords