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Interaction of light and matter
Matter can reflect or absorb electromagnetic radiation or the radiation can pass through the matt...
Optical Spectroscopy
Optical spectroscopy' refers to vibrational spectroscopy and electron excitation spectroscopy. Th...
Introduction
One of the founding fathers of spectroscopy is Issac Newton, who observed the color series using ...
Prediction of Coating Adhesion on Laser-Cleaned Metal Surfaces of Battery Cells Using Hyperspectral Imaging and Machine Learning
Please view the full paper via https://doi.org/10.3390/coatings11111388 (open access) Electric v...
Hyperspectral Imaging Using Laser Excitation for Fast Raman and Fluorescence Hyperspectral Imaging for Sorting and Quality Control Applications
Please view the full paper via https://doi.org/10.3390/jimaging4100110 (open access) A hyperspec...
Classification of Black Plastics Waste Using Fluorescence Imaging and Machine Learning
Please view the full paper via https://doi.org/10.3390/recycling4040040 (open access) This work ...
Quality Control of Slot-Die Coated Aluminum Oxide Layers for Battery Applications Using Hyperspectral Imaging
Please view the full paper via https://doi.org/10.3390/jimaging2020012 (open access) Hyperspectr...
Roll-to-roll suitable short-pulsed laser scribing of organic photovoltaics and close-to-process characterization
Please view the full paper via https://doi.org/10.1117/12.2255934 (open access) The proper long ...
Component evaluation
Hyperspectral imaging can also be used in component tests (downstream of the production process)....
Authenticity detection
Another application is checking the authenticity of documents. In addition to certified documents...
Thin layer inspection
The classical reflection spectroscopic description of thin layers and layer stacks to determine t...
Surface inspection
The inspection of surfaces with regard to purity, freedom from defects and homogeneity is one of ...
Classification and sorting
Detection and classification was one of the first applications of hyperspectral imaging in statio...
Soft modeling vs. hard modeling
In contrast to the machine learning methods of the 'soft modeling' approach, there is also the 'h...
Machine learning methods and data evaluation
If a contextualization into a larger sample (or spectra) population is required or if correlation...
Data acquisition and preprocessing
One of the most important tasks in preparation for data acquisition is to focus the object under ...
Excitation and sample motion
As with other spectral methods, hyperspectral imaging involves an interaction (absorption, reflec...
Spatial resolution and working distance
The optics/lenses of most HSI systems are variable, e.g. via the industry standard C-mount. This ...
Sensors and spectral ranges
In order to obtain a spectral dispersion, different spectrometer concepts are used for spectral i...
Introduction
Modern industrial processes require ever-improving optical inspection for the in-process evaluati...