Imaging

New Ultrafast Imaging Technique Provides Insight into Combustion Processes

A team of scientists has developed an ultrafast imaging technique, called femtosecond laser sheet-compressed ultrafast photography, that can compile videos of incredibly transient details. Read on to learn more about it.

Seeing Like a Butterfly: Optical Invention Enhances Camera Capabilities

Butterflies can see more of the world than humans, including more colors and the field oscillation direction, or polarization, of light. Other species, like the mantis shrimp, can sense an even wider spectrum of light, as well as the circular polarization, or spinning states, of light waves. Inspired by these abilities in the animal kingdom, researchers have developed an ultrathin optical element known as a metasurface, which can attach to a conventional camera and encode the spectral and polarization data of images captured in a snapshot or video through tiny, antenna-like nano-structures that tailor light properties.

New Technology Uses Light to Engrave Erasable 3D Images

Imagine if physicians could capture 3D projections of medical scans, suspending them inside an acrylic cube to create a hand-held reproduction of a patient’s heart, brain, kidneys, or other organs. Then, when the visit is done, a quick blast of heat erases the projection, and the cube is ready for the next scan. A new report by researchers at Dartmouth and Southern Methodist University outlines a technical breakthrough that could enable such scenarios, and others, with widespread utility. Read on to learn more.

New Computer Vision-Based System Monitors Seasonal Dynamics of Tropical Water

Researchers have developed a new way to map water on land in the tropics. Called the UC Berkeley Random Walk Algorithm WaterMask, this advanced monitoring technology uses L-band microwaves from the Cyclone Global Navigation Satellite System to “see” water hidden beneath visual barriers, like tree canopies and clouds. Read on to learn more.

Coating Hides Temperature Change from Infrared Cameras

If the outside of clothing or a vehicle were covered with the coating, an infrared camera would have a harder time distinguishing what is underneath. Read on to learn what this means.

Self-Propelled Nanorobots

The “nanoswimmers” could be used to remediate contaminated soil, improve water filtration, or even deliver drugs to targeted areas of the body.

New Technique Could Improve GPS Navigation Devices

For the first time, researchers at The University of Texas at Austin’s Applied Research Laboratories and NASA’s Goddard Space Flight Center have formed a radio interferometer between a GPS antenna and receiver and a large radio telescope. Read on to learn more about the new technique.

A Powerful Vision-Based Autonomy Alternative to LiDAR, Radar, GPS

Southwest Research Institute has developed off-road autonomous driving tools with a focus on stealth for the military and agility for space and agriculture clients. The vision-based system pairs stereo cameras with novel algorithms, eliminating the need for LiDAR and active sensors. Read on to learn more.

New High-Performance Ultrafast Lasers That Fit on a Fingertip

In a newly published paper in the journal Science, researcher Qiushi Guo demonstrated a novel approach for creating high-performance, ultrafast lasers on nanophotonic chips. His work centers on miniaturizing mode-lock lasers. Read on to learn more.

Researchers Use Inkjet Printing to Make a Portable Multispectral 3D Camera

The palm-sized light field camera could improve autonomous driving, classification of recycled materials, and remote sensing. Read on to learn more about it.

Researchers Develop New and Improved Camera Inspired by the Human Eye

The camera mimics the involuntary movements of the human eye to create sharper, more accurate images for robots, smartphones, and other image-capturing devices. Read on to learn more about it.

Bird-Eye-Inspired Camera Developed for Enhanced Object Detection

This innovative camera technology represents a significant advance in object detection, offering numerous potential applications across various industries. Read on to learn more.

Computer Vision Lends Precision to Robotic Grappling

Innovators at NASA’s Johnson Space Center (JSC) have developed computer vision software that derives target posture determinations quickly and then instructs an operator how to properly align a robotic end-effector with a target that they are trying to grapple.

Advancements Make Laser-Based Imaging Simpler and Three-Dimensional

There are times when scientific progress comes in the form of discovering something completely new. Other times, progress boils down to doing something better, faster, or more easily. New research from the lab of Caltech’s Lihong Wang, the Bren Professor of Medical Engineering and Electrical Engineering, is the latter. Read on to learn more.

Optical Invention Mirrors the Image Processing Power of a Human Eye

Mimicking the easy, instantaneous image processing power of the human eye, Penn State electrical engineering researchers created a metasurface, an optical element akin to a glass slide that uses tiny nanostructures, placed at different angles to control light.

Towards More Accurate 3D Object Detection for Robots and Self-Driving Cars

Researchers from Japan have developed DPPFA–Net, an innovative network that overcomes challenges related to occlusion and noise introduced by adverse weather.

Liquid Crystals Hold the Key to Shapeshifting Robots

Robots and cameras of the future could be made of liquid crystals, thanks to a new discovery that significantly expands the potential of the chemicals already common in computer displays and digital watches. The findings are a simple and inexpensive way to manipulate the molecular properties of liquid crystals with light exposure.

Amateur Drone Videos Could Aid Natural Disaster Damage Assessment

By using artificial intelligence, researchers are developing a system that can automatically identify buildings after disasters and make an initial determination of whether they are damaged and how serious that damage might be.

Highest-Resolution Single-Photon Superconducting Camera

The NIST camera is made up of grids of ultrathin electrical wires, cooled to near absolute zero, in which current moves with no resistance until a wire is struck by a photon. In these superconducting-nanowire cameras, the energy imparted by even a single photon can be detected because it shuts down the superconductivity at a particular location (pixel) on the grid. Combining all the locations and intensities of all the photons makes up an image.

High-Brightness Source of Coherent Light Spanning from the UV to THz

An international team of researchers reports on a compact high-brightness mid-IR-driven source combining a gas-filled anti-resonant-ring photonic crystal fiber with a novel nonlinear-crystal. The tabletop source provides a seven-octave coherent spectrum from 340 nm–40,000 nm with spectral brightness 2–5 orders of magnitude higher than one of the brightest synchrotron facilities.

Terahertz Energy Focused by Credit Card-Sized Device to Generate High-Resolution Images

Researchers have created a device that enables them to electronically steer and focus a beam of terahertz electromagnetic energy with extreme precision. This opens the door to high-resolution, real-time imaging devices that are hundredths the size of other radar systems and more robust than other optical systems.

Metasurfaces Control Polarized Light at Will

Researchers at SEAS have uncovered hidden potential in metasurfaces and demonstrated optical devices that manipulate light’s polarization state with an unprecedented degree of control. Read on to learn more.

AI-Powered Self-Driving Microscopy Technique

Researchers at the U.S. Department of Energy’s (DOE) Argonne National Laboratory have developed an autonomous, or self-driving, microscopy technique. It uses AI to selectively target points of interest for scanning. Read on to learn more.

Sharper Images: A Breakthrough in Microscopy Resolution

Researchers at Boston University recently developed a novel deblurring algorithm that improves the resolution of images with photon intensity conservation and local linearity.

Building More Dexterous Robots

MIT researchers have developed a camera-based touch sensor that is long, curved, and shaped like a human finger. Their device provides high-resolution tactile sensing over a large area. The sensor, called the GelSight Svelte, uses two mirrors to reflect and refract light.

Method Detects Defects in 2D Materials

To further shrink electronic devices and to lower energy consumption, the semiconductor industry is interested in using 2D materials but manufacturers need a quick and accurate method for detecting defects in these materials to determine if the material is suitable for device manufacture.

INRS Researchers Design the World’s Fastest UV Camera

Imagine being able to snap a picture of extremely fast events on the order of a picosecond.

Optimal Information About the Invisible

Researcher are finding ways to estimate a target location when light gets deflected by a disordered structure.

Cell Labelling Method from Microscopy Adapted for Use in Whole-Body Imaging

Processes and structures within the body that are normally hidden from the eye can be made visible through medical imaging. Scientists use imaging to investigate...