Tech focus: Hyperspectral imaging
A look at the market for hyperspectral imaging and some of the products and solutions available
A look at the market for hyperspectral imaging and some of the products and solutions available
Hyperspectral sensors offer a number of advantages thanks to their ability to identify and quantify molecular absorption. Hyperspectral imaging is widely used in applications including food and agriculture, mineralogy, surveillance, astronomy, chemical imaging and many more. This white paper provides a glimpse of some new developments within hyperspectral imaging technology, highlighting what is a rapidly changing imaging landscape.
Mathias Bochow, GFZ Helmholtz Centre, Potsdam, is working on the Trace project to track marine plastic. Credit: Frank Schweikert, Aldebaran Marine Research & Broadcast (www.aldebaran.org/en/)
Abigail Williams speaks to scientists tracking marine plastic using satellite spectral imagery
Long wave infrared (LWIR) spectroscopy is of great interest to spectral geologists. This is because minerals such as quartz, k-feldspar, pyroxene, hornblende, anorthite, calcite, and dolomite are only identifiable in the LWIR range, not in the short-wave infrared (SWIR) range. However, Raman spectroscopy is complementary to LWIR spectroscopy, providing fingerprint spectra of these minerals and an alternative identification method. But Raman spectroscopy also provides several additional benefits on the instrument side.
An ultraviolet (UV) hyperspectral camera was used to capture spectroscopic images, showing UV reflectance signatures that are not detectible with human vision. Many animals and insects have visual receptors sensitive to UV light, and flowers’ reflectance signatures help them attract pollinators, as well as helping birds and insects find food. This points to the usefulness of UV imaging spectroscopy as a potential research tool in such fields as botanical science, entomology, and ornithology.
In this white paper, Pro-Lite’s Dr Nick Barnett provides an update on the current and emerging technologies employed in commercially available multispectral and hyperspectral imagers. Spectral imaging is starting to become a mainstream imaging technology and is playing an increasing role in important topical issues of the day including recycling plastics, precision farming, food analysis and environmental monitoring.
Scientists have developed a lensless, infrared spectral-imaging system for medical diagnostics
Thermal infrared hyperspectral imaging is well suited for the detection, identification, and quantification of industrial stack gas emissions. This application note describes a measurement campaign performed at the Port of Rotterdam with the Telops Hyper-Cam, a commercial high-performance, FTIR-based hyperspectral imaging instrument. Principles of gas detection, quantification, and identification are discussed and computed mass-flow rate results are presented from data acquired at a commercial alkene production facility.
The composite picture of The Night Watch, made of 528 exposures stitched together digitally, makes it possible to zoom in on individual brushstrokes and even particles of pigment in the painting
Matthew Dale explores the emerging alternatives to push broom hyperspectral imaging
Benjamin Skuse investigates some impressive additive methods for producing polymer and glass optics for imaging
Carlos Lee on the European Photonics Industry Consortium’s latest advocacy efforts
Per Karlsson, CEO of NorthLab Photonics, discusses his career path, the key to effective management, and his advice for future entrepreneurs
Superluminescent LED drivers can help us understand ocean turbulence, here’s how
A look at the market for lidar and some of the systems, products and solutions available
A look at the market for hyperspectral imaging and some of the products and solutions available
How optical designers can realise the benefits of using freeform optical elements from the R&D stage when designing for illumination applications
A look at the current market for Neurophotonics and some of the products and solutions available
How solid-state light engines can meet the exact needs of many biotech and industrial applications
The ongoing commercialisation of the space sector is creating numerous opportunities for photonics technologies, Matthew Dale learns
Susan Curtis explores the new breed of quantum gravimeters finding their way onto the slopes of Mount Etna and into tunnels deep under Birmingham
Multi-junction vertical-cavity surface-emitting lasers are likely to displace LEDs and edge-emitting lasers in sensing, finds Andy Extance
At this year’s EPIC AGM Matthew Dale learned that increasing advocacy efforts is a must to ensure an ideal future for European photonics