Results 271 to 280 of about 3,522,681 (315)

Reflectance Calibration with Normalization Correction in Hyperspectral Imaging

2022 25th Euromicro Conference on Digital System Design (DSD), 2022
855
Inés A. Cruz-Guerrero, Raquel León, Liliana Granados-Castro, Himar Fabelo, Samuel Ortega, Daniel U. Campos-Delgado, Gustavo Marrero Callicó   +6 more
openaire   +3 more sources

Study of rubber leaf disease using hyperspectral reflectance

Future Sensing Technologies, 2023
Leaf disease in rubber leaves causes a significant effect on latex production, especially Pestalotiopsis sp. This disease has caused a massive leaf fall in many plantations in Indonesia.
M. D. M. Manessa, Supriatna Rokhmatuloh, I. P. A. Shidiq, R. Nagasawa, Farida Ayu, Anisya Feby Efriana, Retno Lestari, A. Bustamam, Minami Matsui, K. Kase, Y. Makita, T. R. Febbiyanti, F. Oktavia, C. T. Stevanus   +13 more
semanticscholar   +1 more source

Using machine learning algorithms with in-situ hyperspectral reflectance data to assess comprehensive water quality of urban rivers

IEEE Transactions on Geoscience and Remote Sensing, 2022
Remotely sensed hyperspectral data can support more effective water quality monitoring. Nevertheless, the variability and complexity of urban river water make it hard to retrieve comprehensive water quality characteristics directly, so that most current ...
Jiannan Cai, Jun Chen, X. Dou, Q. Xing
semanticscholar   +1 more source

Fast Determination of Melanin based on Skin Hyperspectral Reflectance

2020 25th International Conference on Pattern Recognition (ICPR), 2021
A 3layered skin model is built to simulate hyperspectral reflectance using Monte Carlo simulations based on biological components, which include melanin volume fraction, water level, blood volume fraction, oxygen saturation, etc. A forward neural network is trained for mapping biological components and reflectance.
Shiwei Li, Mohsen Ardabilian, Abdelmalek Zine   +2 more
openaire   +2 more sources

Reflectance and fluorescence hyperspectral elastic image registration

SPIE Proceedings, 2004
Science and Technology International (STI) presents a novel multi-modal elastic image registration approach for a new hyperspectral medical imaging modality. STI's HyperSpectral Diagnostic Imaging (HSDI) cervical instrument is used for the early detection of uterine cervical cancer. A Computer-Aided-Diagnostic (CAD) system is being developed to aid the
Holger Lange, Ross Baker, Johan Hakansson, Ulf Peter Gustafsson   +3 more
openaire   +1 more source

Separating surface reflectance from volume reflectance in hyperspectral imaging

Optical Interactions with Tissue and Cells XXXII, 2021
Hyperspectral imaging has emerged as a promising diagnostic technique in the medical field. However, reflection from a sample often consists of a combination of surface reflection (also known as glare) and volume reflection. In this study, we propose a method to separate these two by illuminating the samples from three different angles and using a ...
Lynn-Jade Jong, Freija Geldof, Anouk L. Post, Henricus Sterenborg, Theo Ruers   +4 more
openaire   +1 more source

GSV: a general model for hyperspectral soil reflectance simulation

International Journal of Applied Earth Observation and Geoinformation, 2019
Abstract Soil background reflectance is a critical component in canopy radiative transfer (RT) models. However, few efforts have been devoted to the development of soil reflectance models compared to other components in canopy RT models. In the spectral domain of soil reflectance, spectral vector models are more flexible than typical spectra models ...
Chongya Jiang, Hongliang Fang
exaly   +2 more sources

Model for the interpretation of hyperspectral remote-sensing reflectance

Applied Optics, 1994
Remote-sensing reflectance is easier to interpret for the open ocean than for coastal regions because the optical signals are highly coupled to the phytoplankton (e.g., chlorophyll) concentrations. For estuarine or coastal waters, variable terrigenous colored dissolved organic matter (CDOM), suspended sediments, and bottom reflectance, all factors that
Z, Lee, K L, Carder, S K, Hawes, R G, Steward, T G, Peacock, C O, Davis   +5 more
openaire   +2 more sources

Absolute measurement of hyperspectral and angular reflection

Applied Optics, 2014
A new instrument for absolute measurement of hyperspectral and angular reflection is presented. The instrument determines absolute values of angular reflection quantities in a wavelength range from 380 to 780 nm with a 3 nm spectral resolution by using a white source and a CCD-based spectroradiometer.
openaire   +2 more sources

Simulating models for Phaeozem hyperspectral reflectance

International Journal of Remote Sensing, 2011
It is difficult to analyse soil properties quantitatively with multispectral remote sensing data. An alternative solution is to determine the main spectral characteristic control points of soil hyperspectral reflectance curves by sensitivity analysis methods.
Huanjun Liu, Xinle Zhang, Wantai Yu, Bai Zhang, Kaishan Song, J. Blackwell   +5 more
openaire   +1 more source