Comparative study between hyperspectral imaging spectrometer and a discrete multispectral detection device for assessing meat tenderness

2017 ◽  
Author(s):  
Wensong Wei ◽  
Yankun Peng ◽  
Xiaochun Zheng ◽  
Wenxiu Wang ◽  
Fang Tian
Keyword(s):  
Comparative Study ◽  
Hyperspectral Imaging ◽  
Meat Tenderness ◽  
Imaging Spectrometer ◽  
Multispectral Detection

scholarly journals Vis/NIR hyperspectral imaging for detection of hidden bruises on kiwifruits

2011 ◽  
Vol 29 (No. 6) ◽  
pp. 595-602 ◽  
Author(s):  
Q. Lü ◽  
M.-j. Tang ◽  
J.-r. Cai ◽  
J.-w. Zhao ◽  
S. Vittayapadung
Keyword(s):  
Hyperspectral Imaging ◽  
Hyperspectral Image ◽  
Detection System ◽  
Image Data ◽  
Principal Component ◽  
Quality Analysis ◽  
Economic Losses ◽  
Hyperspectral Image Data ◽  
Multispectral Detection ◽  
Non Destructive

It is necessary to develop a non-destructive technique for kiwifruit quality analysis because the machine injury could lower the quality of fruit and incur economic losses. Bruises are not visible externally owing to the special physical properties of kiwifruit peel.We proposed the hyperspectral imaging technique to inspect the hidden bruises on kiwifruit. The Vis/NIR (408–1117 nm) hyperspectral image data was collected. Multiple optimal wavelength (682, 723, 744, 810, and 852 nm) images were obtained using principal component analysis on the high dimension spectral image data (wavelength range from 600 nm to 900 nm). The bruise regions were extracted from the component images of the five waveband images using RBF-SVM classification. The experimental results showed that the error of hidden bruises detection on fruits by means of hyperspectral imaging was 12.5%. It was concluded that the multiple optimal waveband images could be used to constructs a multispectral detection system for hidden bruises on kiwifruits.

Joint ESA and NASA Imaging Spectrometer Airborne Campaign to Support CHIME and SBG

2021 ◽  
Author(s):  
Robert Green ◽  
Michael Rast ◽  
Michael Schaepman ◽  
Andreas Hueni ◽  
Michael Eastwood
Keyword(s):  
Uncertainty Quantification ◽  
Hyperspectral Imaging ◽  
Infrared Imaging ◽  
State Of The Art ◽  
Atmospheric Correction ◽  
Imaging Spectrometer ◽  
Science Collaboration ◽  
Study Sites ◽  
University Of Zurich ◽  
The University

<p>In 2018 a joint ESA and NASA airborne campaign was orchestrated with the University of Zurich to advance cooperation and harmonization of algorithms and products from imaging spectrometer measurements.  This effort was intended to benefit the future candidate European Copernicus Hyperspectral Imaging Mission for the Environment (CHIME) and NASA Surface Biology and Geology mission. For this campaign, the Airborne Visible/Infrared Imaging Spectrometer Next Generation was deployed from May to July 2018.  Twenty-four study sites were measured across Germany, Italy, and Switzerland.  All measurements were rapidly calibrated, atmospherically corrected, and made available to NASA and ESA investigators.  An expanded 2021 campaign is now planned with goals to: 1) further test and evaluate new state-of-the-art science algorithms: atmospheric correction, etc; 2)  grow international science collaboration in support of ESA CHIME and NASA SBG; 3) test/demonstrate calibration, validation, and uncertainty quantification approaches;  4) collect strategic cross-comparison under flights of space missions: DESIS, PRISMA, Sentinels, etc.  In this paper, we present an overview of the key results from the 2018 campaign and plans for the 2021 campaign.</p><p> </p>

scholarly journals Design and Test of Portable Hyperspectral Imaging Spectrometer

2017 ◽  
Vol 2017 ◽  
pp. 1-9 ◽  
Author(s):  
Chunbo Zou ◽  
Jianfeng Yang ◽  
Dengshan Wu ◽  
Qiang Zhao ◽  
Yuquan Gan ◽  
...  
Keyword(s):  
Hyperspectral Imaging ◽  
High Performance ◽  
Small Volume ◽  
High Spatial Resolution ◽  
Flight Test ◽  
High Spectral Resolution ◽  
Imaging Spectrometer ◽  
Low Weight ◽  
Aerial Vehicle ◽  
Small Platform

We design and implement a portable hyperspectral imaging spectrometer, which has high spectral resolution, high spatial resolution, small volume, and low weight. The flight test has been conducted, and the hyperspectral images are acquired successfully. To achieve high performance, small volume, and regular appearance, an improved Dyson structure is designed and used in the hyperspectral imaging spectrometer. The hyperspectral imaging spectrometer is suitable for the small platform such as CubeSat and UAV (unmanned aerial vehicle), and it is also convenient to use for hyperspectral imaging acquiring in the laboratory and the field.

Application of thermal/structural/optical integrated analysis to ultraviolet lens of hyperspectral imaging spectrometer

2016 ◽  
Vol 37 (2) ◽  
pp. 262-266
Author(s):  
Wu Yao ◽  
Xu Mingming ◽  
Chen Sujuan ◽  
Jiang Yu ◽  
Xue Hui ◽  
...  
Keyword(s):  
Hyperspectral Imaging ◽  
Integrated Analysis ◽  
Imaging Spectrometer

Design of a compact hyperspectral imaging spectrometer with a freeform surface based on anastigmatism

2020 ◽  
Vol 59 (6) ◽  
pp. 1715 ◽  
Author(s):  
Jialun Zhang ◽  
Chao Lin ◽  
Zhenhua Ji ◽  
Hao Wu ◽  
Chengliang Li ◽  
...  
Keyword(s):  
Hyperspectral Imaging ◽  
Freeform Surface ◽  
Imaging Spectrometer
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