Articles

3D Visualization in Geospatial Analysis

The past decade has seen an explosion of observations from airborne and satellite-based multiand hyperspectral sensors, as well as from synthetic-aperture radar and LiDAR. Distilling useful information from this wealth of raw data is the domain of geospatial analysis, the collection of analytical, statistical, and heuristic methods for extracting information from georeferenced data. This information is important in serving the needs of a diverse set of industries including environmental conservation, oil and gas exploration, defense and intelligence, agriculture, coastal monitoring, forestry, and mining.

Posted in: Imaging, Features, Articles

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Digital Imaging Systems for Ballistics Testing

Traditionally, the recording of ordnance proofing data has been split into two main areas: instrumentation and high speed photography. Instrumentation was more focused on the collection of analytical data from various instruments, e.g. Doppler radar, yaw screens (for pitch and yaw), and velocity traps (i.e. skyscreens or acoustic triggers), whereas high speed photography was more concerned with obtaining high quality images for later qualitative analysis. The photographic images were obtained using an assortment of high speed film cameras, often requiring a specialist photographic team to survey in, set up and align the camera, illuminate the subject, synchronise the camera to the firing system, process the film records and produce the final images for later manual analysis.

Posted in: Features, Photonics, Articles

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NASA Begins a New Journey of Exploration

“Tonight, on the planet Mars, the United States of America made history. The successful landing of Curiosity – the most sophisticated roving laboratory ever to land on another planet – marks an unprecedented feat of technology that will stand as a point of national pride far into the future. It proves that even the longest of odds are no match for our unique blend of ingenuity and determination. Tonight’s success reminds us that our preeminence – not just in space, but here on Earth – depends on continuing to invest wisely in the innovation, technology, and basic research that has always made our economy the envy of the world. I congratulate and thank all the men and women of NASA who made this remarkable accomplishment a reality – and I eagerly await what Curiosity has yet to discover.” - President Barack Obama, August 6, 2012

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Talking Mars

NASA Tech Briefs recently spoke with Doug McCuistion, Director of the Mars Exploration Program, and Michael Meyer, lead scientist for the Mars Exploration Program and Program Scientist for the Mars Science Laboratory (MSL). We talked about what NASA hopes to find, the technologies used onboard, and how the two-year mission is expected to progress.

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The Technology of Curiosity

On April 14, 2004, NASA announced an opportunity for researchers to propose science investigations for the Mars Science Laboratory (MSL) mission. Eight months later, the agency announced selection of eight investigations. In addition, Spain and Russia would each provide an investigation through international agreements. The instruments for these ten investigations make up the science payload on the Curiosity rover.

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An Ionic Twist on Hair Care

Nanomaterials developed by NASA play a big role in professional hairstyling tools. Disinfecting can be dirty work. Typical cleaning agents, like chlorine and alcohol, release fumes that don’t go away when applied in the contained environment of a spacecraft. So NASA scientists developed an alternative method to keep surfaces disinfected, using a material whose antimicrobial properties have long been known: nanosilver.

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The GigE Vision® Interface Standard: Transforming Medical Imaging

Live, high-resolution imaging is increasingly being leveraged to enhance operating procedures. It can improve the precision of physicians and their instruments, and minimize the invasiveness of many procedures. Increasingly, one small component in a vision system — the interfacing technology — is providing answers to the most common of these challenges.

Posted in: Features, Articles, Imaging

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