blog-banner

The Headwall Blog

Hyperspectral & LiDAR: The Gold Standard

As remote sensing evolves, users across all applications are discovering the value of adding LiDAR instruments to a hyperspectral payload. First, instruments of all types are getting smaller and lighter. Second, UAVs are more capable than ever in terms of carrying capacity and airborne stability. Finally, users across agriculture, minerals and mining, and environmental research can now collect a full suite of useful data at one time. With powerful GPS/IMU devices to tie the data streams together, a completely integrated hyperspectral-LiDAR airborne package is now the 'gold standard' for many remote sensing missions.

Read More

Demonstrating Hyperspectral Imaging in Amsterdam!

In Amsterdam this week, more than 40 attendees at the IEEE SpectroExpo-WHISPERS conference have participated in a field test of Headwall's Nano-Hyperspec® VNIR sensor. VNIR is shorthand for 'Visible-Near-Infrared,' and the sensor collects image data from 400-1000nm across 270 spectral bands and 640 spatial pixels.

Read More

Airborne Integration Considerations

Our customers come to us with missions that range from crop disease detection to infrastructure inspection, from environmental monitoring to pollution analysis. Hyperspectral imaging sensors provide a wealth of high-resolution data in the near-infrared and shortwave infrared ranges...beyond human vision. But we see an increasing level of integration occurring where hyperspectral rides alongside instruments such as thermal, LiDAR, and GPS/IMUs. The data streams coming from each instrument need to be synthesized ('data fusion') but the instruments themselves need to be positioned and located on the UAV to assure a balanced airborne package.

Read More

Hyperspec SWIR Gets UAV Wings!

Remote sensing with hyperspectral sensors is  a combination of several elements: an imaging spectrometer and a fast data processing system to acquire and analyze spectral and spatial data. For remote sensing missions such as crop disease or invasive species detection, the spectral range of most interest is the visible-near-infrared (VNIR) from 400-1000nm.

Read More

The Eyes Have It...But Not Always

Humans have a marvelous ability to see and identify objects within what is called the visible range of the electromagnetic spectrum. That starts at roughly 380 nanometers and goes up to around 700 nanometers or so.

Read More

Hyperspectral Takes Old Maps Into New Territory

Late in 2014, Headwall sponsored a successful event at London’s Natural History Museum. The purpose of the gathering was to introduce curators and preservationists to the advantages and capabilities of hyperspectral imaging. Professionals in this field understand that the treasures under their control...paintings, documents, and artifacts...need to be preserved using the most advanced techniques available. Preservation largely means having an excellent understanding of the chemical composition of the underlying materials used to create the treasures. And what the eye cannot see, hyperspectral imaging can.

Read More

Nano-Hyperspec...in the air and on the ground

Next week during Photonics West we’ll be demonstrating our very newest hyperspectral sensor: Nano-Hyperspec. We gave it that name because it’s small...exceptionally small. Think of a Rubik's Cube and you've got it. The market said it needed a robust, aberration-corrected hyperspectral sensor purpose-built for small, hand-launched UAVs. One perfect example is the X6 from the Aibotix division of Leica-Geosystems, a company with whom Headwall signed an agreement in late 2014. “There’s a confluence within the remote sensing marketplace,” said Headwall CEO David Bannon. “The attractiveness of affordable, easy to launch UAVs runs headlong into the need for perfectly matched sensor instruments that they can carry.” In conceiving Nano-Hyperspec, Headwall consolidated and integrated as much as possible to yield a small, performance-packed unit that even the smallest UAVs could easily carry.

Read More

Headwall Delivers Micro-Hyperspec® Sensors to Columbia University

High-performance imaging sensors on small, commercial UAS will assess ocean and sea ice variability in Arctic zones

FITCHBURG, MA - OCTOBER 9, 2014: Headwall Photonics has delivered two high-performance hyperspectral imaging sensors to Columbia University as part of its Air-Sea-Ice Physics and Biogeochemistry Experiment (ASIPBEX). ASIPBEX is part of a larger international collaborative investigation of Climate Cryosphere Interaction with colleagues from Spain, Germany and Norway. This crucial remote-sensing project will use a high-endurance unmanned aircraft system (UAS) to investigate climatological changes present in the Arctic Ocean around Svalbard, Norway. The instrument payload comprises two Micro-Hyperpsec sensors; one will cover the Visible-Near-Infrared (VNIR) range of 400-1000nm while the other will cover the Near-Infrared (NIR) range of 900-1700nm. Together, the sensors will be crucial in detecting indicators of sea ice physics, solar warming and global carbon cycles.

Read More

UAVs and Hyperspectral Imaging Unite

One of the things we’re seeing at Headwall is the proliferation of airborne applications. Multispectral suffers a bit with respect to hyperspectral (a handful of bands versus hundreds), which is why hyperspectral is winning the day.

Read More

Headwall's Field-of-View Calculator

When it comes to hyperspectral imaging, it isn’t always about the hardware. Before users even get to the stage of specifying a sensor instrument, they need to ask a few questions:

Read More