Non-invasive techniques for measurement of fresh fruit firmness

PP Subedi, KB Walsh - Postharvest biology and technology, 2009 - Elsevier
… Thus the phenomenon of light scattering may offer a better basis upon which to develop
a technology for non-invasive determination of a parameter related to fruit firmness. …

Comparison of the non-invasive monitoring of fresh-cut lettuce condition with imaging reflectance hyperspectrometer and imaging pam-fluorimeter

B Shurygin, O Chivkunova, O Solovchenko… - Photonics, 2021 - mdpi.com
… We compared two approaches to non-invasive proximal sensing of the early changes in
fresh-cut … An approach was developed to the processing of hyperspectral data for non-invasive

Non-invasive spectrophotometric sensing of carrot quality from harvest to consumption

M Zude, I Birlouez-Aragon, PJ Paschold… - Postharvest Biology and …, 2007 - Elsevier
… recorded by means of non-invasive spectrophotometric techniques. … for non-invasive monitoring
of compounds determining the … monitored by means of diffuse reflectance readings (800–…

Spatially resolved diffuse reflectance in the visible and near-infrared wavelength range for non-destructive quality assessment of 'Braeburn'apples

NN Do Trong, C Erkinbaev, M Tsuta… - Postharvest Biology and …, 2014 - Elsevier
… In this research, a setup for contact spatially resolved diffuse reflectance measurements in
the 500–1000 nm range based on a fibre-optics probe was elaborated for the measurement of …

Non-invasive determination of glucose concentration using a near-field sensor

A Gorst, K Zavyalova, A Mironchev - Biosensors, 2021 - mdpi.com
… developed for determining glucose levels using non-invasive and … measuring blood sugar
and monitor it throughout the day. The most well-known non-invasive methods for measuring

Non-invasive identification of organic materials in wall paintings by fiber optic reflectance infrared spectroscopy: a statistical multivariate approach

F Rosi, A Daveri, C Miliani, G Verri, P Benedetti… - Analytical and …, 2009 - Springer
… method for the non-invasive and in situ identification of organic binders in wall paintings by
fiber optic mid-FTIR reflectance spectroscopy. The non-invasive point analysis methodology …

Oleic acid concentration and effect in human stratum corneum: non-invasive determination by attenuated total reflectance infrared spectroscopy in vivo

VHW Mak, RO Potts, RH Guy - Journal of controlled release, 1990 - Elsevier
Attenuated total reflectance infrared (ATR-IR) spectroscopy was used to study, in vivo, the
mechanism of action of a putative skin penetration enhancer, oleic acid. Specifically, the …

Clinical determination of tissue optical properties in vivo by spatially resolved reflectance measurements

TJ Beck, W Beyer, T Pongratz, W Stummer… - … on biomedical optics, 2003 - opg.optica.org
… was to investigate an approach to determine the optical properties in vivo and non-invasive.
Thus, the transmitted light could not be obtained, but only the backscattered light of the …

Noninvasive determination of absorption coefficient and reduced scattering coefficient of human skin tissues in vivo with oblique-incidence reflectometry

P Sun, Y Wang, X Mo, J Xie - Chinese Optics Letters, 2008 - opg.optica.org
… this assumption, we measured the diffuse reflectance of a volunteer’s forearm (No. 6)
covered with a little black ink. The fitting result tended to be divergent, which meant that Eq. …

Analysis of changes in reflectance measurements on biological tissues subjected to different probe pressures

R Reif, MS Amorosino, KW Calabro… - … of biomedical optics, 2008 - spiedigitallibrary.org
Noninvasive optical reflectance measurements have been used to extract diagnostic
information from a variety of tissue types, in vivo, such as colon, 1 skin, 2 brain, 3 cervix, 4 …