Imaging

Lindley Johnson, Planetary Defense Officer, NASA Headquarters, Washington, D. C.

NASA’s Planetary Defense Coordination Office (PDCO), managed at NASA Headquarters in Washington, D.C., is responsible for early detection of potentially hazardous objects, like asteroids and comets, and issuing warnings about their potential impacts. This requires teamwork from observatories around the world. NASA’s Planetary Defense Officer, Lindley Johnson leads the global effort to detect and follow near-earth objects

Posted in: Who's Who, Aerospace, Data Acquisition, Imaging
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Could lenses and thick cameras become obsolete?

A team at the California Institute of Technology designed a lens-less camera. "Once scaled up, this technology can make lenses and thick cameras obsolete," said graduate student and camera researcher Behrooz Abiri. What do you think? Could lenses and thick cameras become obsolete?

Posted in: Question of the Week, Cameras, Imaging
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Microstructural Explorations Inside Fuel Cells

Solid oxide fuel cells (SOFCs), a promising technology that can efficiently produce energy using fossil fuels with no moving parts and low emissions, present a particularly perplexing economic challenge: current systems operate at maximum efficiency between 700 and 1000 degrees Celsius, but such high temperatures shorten their service life, requiring more frequent fuel cell stack replacements. Lowering the operating temperature makes them last longer, but requires additional cells in the stack to deliver the same performance, and that drives up costs.

Posted in: Briefs, Imaging, Photonics
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The Advanced Land Imager Helped NASA Mission Exceed Expectations.

After more than 16 years of operation, NASA’s Earth Observing–1 (EO-1) spacecraft was decommissioned on March 30 of this year. The Advanced Land Imager (ALI) developed by MIT Lincoln Laboratory was aboard as an alternative to the land-imaging sensor that was used by the Landsat Earth-observing program.

Posted in: Briefs, Imaging, Photonics
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Ultra-Thin Camera Says Good-Bye to the Lens

A new proof-of-concept design retires one of the most familiar parts of a traditional camera: the lens. By swapping out the glass lens with a tiny array of light receivers, a California Institute of Technology team believes the thinner, lighter model supports a new wave of ubiquitous imaging.

Posted in: News, Cameras, Imaging, Optical Components, Optics
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DESIGNING A VISION SYSTEM: A Comprehensive Guide to the Technical Requirements for Building a Vision System for Your Unique Imaging Application

There are a number of factors that need to be considered when designing a vision system, including: the hardware platform, the operating system, the software and API, and the very things that make the vision system “see” – the camera and its lens. Although each aspect plays an important role in achieving desired results, the camera and lens are the essence of the vision system. As such, it is recommended that both the camera and the lens be selected as a pair based on overall system requirements. Here we discuss various elements of vision systems with a focus on the camera and lens.

Posted in: White Papers, Imaging, Medical, Optics, Photonics
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The Evolution of ADAS: Testing Systems That Include Cameras, Radar, and Sensor Fusion

In Conjunction with SAE

On their own, test requirements for camera and radar technology are rapidly changing as they become more safety critical. Because these systems are increasingly reliant on sensor fusion techniques, the test requirements are growing even more complex at a fast rate. A test system built on a scalable and flexible architecture is the only way to make sure you can adapt as quickly as ADAS technologies and autonomous vehicle systems are evolving.

Posted in: On-Demand Webinars, Upcoming Webinars, Cameras, Test & Measurement
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Local Situational Awareness Design and Military and Machine Vision Standards

Real-time video is playing an increasingly important role in a range of military local situational analysis (LSA) applications to help improve surveillance and intelligence of possible threats while keeping troops out of harm’s way.

Posted in: White Papers, White Papers, Defense, Imaging, Data Acquisition, Sensors
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Imaging Detonations of Explosives

Using high-speed camera pyrometers to measure and map fireball/shock expansion velocities.

An effort has been made within the US Army Research Laboratory (ARL) to extract quantitative information on explosive performance from high-speed imaging of explosions. Explosive fireball surface temperatures are measured using imaging pyrometry (2-color 2-camera imaging pyrometer; full-color single-camera imaging pyrometer). Framing cameras are synchronized with pulsed laser illumination to measure fireball/shock expansion velocities, enabling calculation of peak air-shock pressures. Multicamera filtering at different wavelengths enables visualization of light emission by some reactant species participating in energy release during an explosion. Measurement of incident and reflected shock velocities is used to calculate shock energy on a target.

Posted in: Briefs, TSP, TSP, Aerospace, Imaging
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Terahertz (THz) Radar: A Solution For Degraded Visibility Environments (DVE)

Operating at higher frequencies than other types of radar produces tighter beams and finer resolution.

An accurate view of the physical world is frequently vital. For example, rotary wing aircraft pilots must have knowledge of the terrain in order to safely fly their aircraft. Therefore, systems capable of generating images of the environment of sufficient quality to facilitate the decision process are necessary. The product of such a system is illustrated in Figure 1.

Posted in: Briefs, TSP, TSP, Aerospace, Imaging
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