An Airborne Offner Imaging Hyperspectrometer with Radially-Fastened Primary Elements [PDF]
Sensors, 2020 We propose a new layout for the Offner imaging hyperspectrometer that is utilized onboard small space vehicles. The layout is based on a method of adjusting the adaptive temperature-dependent optical scheme by moving just two coaxial optical components ...
Nikolay Kazanskiy +3 more
doaj +5 more sources
The Small-Scale Satellite Modular Hyperspectrometer [PDF]
Приборы и методы измерений, 2019 Recently in the world practice of aerospace monitoring of the Earth there has been an increasingly active using of methods and devices of hyperspectral imaging.
A. O. Martinov +4 more
doaj +4 more sources
Modeling of image formation with a space-borne Offner hyperspectrometer [PDF]
Компьютерная оптика, 2020 In this paper, we developed a mathematical model of image formation that allows a predictive hyperspectral image to be generated. The model takes into account the formation of an optical image using a matrix photodetector.
Andrey Rastorguev +2 more
doaj +5 more sources
3U CubeSat-Based Hyperspectral Remote Sensing by Offner Imaging Hyperspectrometer with Radially-Fastened Primary Elements [PDF]
SensorsThis paper presents findings from a spaceborne Earth observation experiment utilizing a novel, ultra-compact hyperspectral imaging camera aboard a 3U CubeSat.
Nikolay Ivliev +11 more
doaj +4 more sources
Visualization of Subcutaneous Blood Vessels Based on Hyperspectral Imaging and Three-Wavelength Index Images [PDF]
Sensors, 2023 Blood vessel visualization technology allows nursing staff to transition from traditional palpation or touch to locate the subcutaneous blood vessels to visualized localization by providing a clear visual aid for performing various medical procedures ...
Mohammed Hamza +2 more
doaj +2 more sources
Spectral Diffractive Lenses for Measuring a Modified Red Edge Simple Ratio Index and a Water Band Index [PDF]
Sensors, 2021 We propose a novel type of spectral diffractive lenses that operate in the ±1-st diffraction orders. Such spectral lenses generate a sharp image of the wavelengths of interest in the +1-st and –1-st diffraction orders.
Veronika Blank +3 more
doaj +2 more sources
Agricultural plant hyperspectral imaging dataset [PDF]
Компьютерная оптика, 2023 Detailed automated analysis of crop images is critical to the development of smart agriculture and can significantly improve the quantity and quality of agricultural products.
A.V. Gaidel +6 more
doaj +3 more sources
Hyperspectral Monitoring of Powdery Mildew Disease Severity in Wheat Based on Machine Learning [PDF]
Frontiers in Plant Science, 2022 Powdery mildew has a negative impact on wheat growth and restricts yield formation. Therefore, accurate monitoring of the disease is of great significance for the prevention and control of powdery mildew to protect world food security.
Zi-Heng Feng +9 more
doaj +2 more sources
Preliminary testing of acousto-optical hyperspectrometer for UAV [PDF]
Journal of Physics: Conference Series, 2018 Basic results of the preliminary testing of acousto-optical hyperspectrometer for unmanned aerial vehicle are presented. The stability of sensing characteristics is studied. It is shown that warming-up of the photodetector as well as of the acousto-optic
Gaponov, M.I. +3 more
core +2 more sources
Spectral lenses to highlight blood vessels in the skin [PDF]
Компьютерная оптика, 2022 A device for visualization of blood vessels in the human skin is presented. A diffractive optical element is used to locate blood vessels in the skin image.
M.M. Hamza +5 more
doaj +3 more sources