Articles tagged with Cameras
The Hubble Space Telescope has imaged two galaxies in close proximity, each traveling at approximately 2 million kilometers per hour. Their interaction will cause distortions and changes to the structures of both galaxies due to gravitational forces.
A global study reveals low adherence to International Atomic Energy Agency recommendations for reducing nuclear cardiology radiation exposure. The research found that stress or rest only imaging, avoiding thallium, and camera technologies to reduce dose were key practices associated with achieving a 9 mSv scan.
A large nuclear cardiology laboratory has achieved a significant reduction in radiation doses, from 17.9 mSv in 2009 to 7.2 mSv in 2016, with the median dose dropping by 75%. The study used new technologies and protocols, including stress-only tests and more sensitive cameras, to achieve these reductions.
Scientists create an input system called WatchSense that tracks the movement of fingers on and above the back of the hand using a depth sensor. This allows for more expressive interactions with smartphones and smart TVs, and has been successfully tested in various scenarios, including virtual and augmented reality.
A study found substantial differences in accuracy between commercially available heart rate apps, with some apps performing up to 20 beats per minute off from the clinical gold standard. Non-contact apps performed less well than contact apps, particularly at higher heart rates and lower body temperatures.
The SAVI camera uses laser light to capture high-resolution images of distant objects, eliminating the need for a long lens. The technology has potential applications in visible light imaging, with researchers envisioning real-time, high-resolution capture using this synthetic aperture approach.
The new technology could enable teams of robots to conduct surveillance as a single entity with many eyes, detecting suspicious actors and activities. Researchers plan early tests on the Cornell campus, using research robots to surveil crowded areas while drawing on existing webcams.
Researchers at Newcastle University found that malicious websites and installed apps can crack four-digit PINs with a 70% accuracy using smartphone sensor data. The study revealed that people are unaware of the risks, and despite industry awareness, no solution has been found yet.
Researchers have developed a new experimental technique to take 3D images of molecules in action, combining two technologies to probe the structure and behavior of molecules. This tool enables experiments with larger molecules that were previously impossible, allowing for better understanding of quantum mechanics in complex systems.
Researchers at MIT Media Lab describe a new technique that makes image acquisition using compressed sensing 50 times as efficient. The technique enables the development of novel imaging systems without lenses, opening new prospects for design and applications in harsh environments or non-visible spectrum wavelengths.
The OSIRIS-REx mission successfully tested its asteroid search instruments, detecting multiple Main Belt asteroids two magnitudes fainter than expected. The spacecraft's MapCam imager performed flawlessly, demonstrating improved imaging capabilities that will aid in avoiding natural satellites around target asteroid Bennu.
Researchers have created a pocket-sized retina camera that can take quality pictures without pupil dilation, enabling convenient and efficient retinal examinations. The camera is made from simple parts available online and costs around $185.
A team of researchers, led by Dr. Jessica Yorzinski, has conducted a study on peacock behavior to understand how males assess their rivals during the breeding season. The study found that males focus on the lower regions of rival displays, particularly the eyespot areas and body, when evaluating competition.
Researchers from Northwestern University developed a new approach to improve night-vision cameras using strained-layer indium arsenide/indium arsenide antimonide type-II superlattices. The new design enables infrared cameras to perform imaging at higher temperatures, reducing the need for cryogenic cooling power.
Researchers at the University of Illinois have developed IoT sensors that can be embedded in sports equipment to provide real-time analytics. These sensors, costing under $100, enable players and coaches to track movement and performance with high accuracy.
A new miniaturized camera inspired by eagles' sharp vision uses multi-aperture design to capture high-resolution images with improved center sharpness. The 'foveated imaging' system has potential in areas like endoscopy, optical sensors, and surveillance drones.
A multidisciplinary team combines drones with infrared cameras to monitor animal populations, reducing costs and increasing access. The new technique uses thermal imaging to identify species, potentially aiding conservation efforts against poaching and habitat destruction.
A new project from Liverpool John Moores University is using drones equipped with thermal cameras to help identify endangered species, such as rhinos and orang-utans. The technique involves analyzing thermal heat profiles to create a unique 'fingerprint' for each animal, allowing for more efficient conservation efforts.
Researchers propose regional networks to link remote camera data globally, mirroring the success of standardized weather stations. This collaboration aims to monitor biodiversity trends and track wildlife populations in real-time, facilitating evidence-based conservation decisions.
UC Riverside-led research quantifies rattlesnake strikes for the first time using portable high-speed cameras, capturing three-dimensional video of a snake preying on a kangaroo rat. The study reveals that snakes can greatly exceed lab observations and that kangaroo rats may use elastic energy storage to evade strikes.
UC Riverside scientists created astrophotography classes for non-science students, resulting in improved understanding of telescopes and cameras, as well as renewed interest in astronomy. The cost-effective courses also encouraged students to take up astrophotography as a hobby, opening the path to future amateur astronomers.
A NASA-developed camera, equipped with a moth's eye-inspired absorber technology, is now operational on the SOFIA aircraft. This innovation allows for greater sensitivity in far-infrared astronomy, enabling scientists to study early stages of star and planet formation, as well as map magnetic fields around supermassive black holes.
Researchers at Osaka University developed a remote-control rescue robot with improved operability and mobility for disaster situations. The robot features advanced technologies, including force control, vibration feedback, and long-range imaging, to enhance the operator's experience.
Rice chemist Christy Landes and her team have created a new microscopy technique called super temporal resolution microscopy (STReM), which captures images of molecules at a frame rate 20 times faster than typical lab cameras. This enhancement allows researchers to study fast processes without needing more expensive cameras, extracting...
MIT engineers have transformed spinach plants into sensors that can detect explosives and wirelessly relay information to a handheld device. The carbon-nanotube-enhanced plants send an alert when sensing dangerous chemicals, making them ideal for environmental monitoring.
Researchers at General Atomics have developed a gamma ray camera to image energetic electrons in ultra-hot fusion plasma, providing unprecedented insights into their behavior. The device reveals that radiation forces can sap high-energy electrons, while collisions with other electrons are more effective at lower energies.
Researchers at Disney Research have found a way to reduce the time and effort required to train facial performance capture systems. By using synthetic data generated from a small sample of recordings, they were able to determine a set of training data that was tens to hundreds of times smaller than normal without affecting accuracy. Th...
A team of astronomers led by Grant Wilson at UMass Amherst is building a state-of-the-art imaging system called TolTEC to study the heavens. The new camera will be part of the Large Millimeter Telescope (LMT) and offer improved sensitivity and speed, enabling groundbreaking surveys in star formation and galaxy evolution.
A team of physicists has broken Rayleigh's limit, achieving resolutions up to 17 times lower than previously thought. This discovery opens doors to significant improvement in imaging systems and challenges traditional Optics textbooks.
A new study from the University of Cambridge found that body-worn cameras are associated with a significant reduction in citizen complaints against police, with 93% fewer complaints filed after camera implementation. The 'observer effect' is believed to be a key factor, modifying behavior and increasing accountability.
A new computational imaging method identifies letters printed on the first 9 pages of a stack of paper, demonstrating the feasibility of reading closed books. The MIT system exploits the unique properties of terahertz radiation to penetrate surfaces and analyze materials in thin layers.
Researchers developed HemaApp to estimate hemoglobin concentrations and screen for anemia, with a 69-82% correlation to CBC tests. The mobile app uses a smartphone camera and external light sources to analyze finger colors and detect blood components.
Researchers are exploring the practical uses of rainbows in weather forecasting and combustion engine efficiency. A comprehensive review highlights the importance of simulating rainbows using mathematical modeling. The study also provides tips for capturing rainbows on camera, making them a rare and special phenomenon.
Researchers have developed a cost-effective method using the Microsoft Kinect to evaluate gait abnormalities in multiple sclerosis patients. The device detects movement and computer algorithms quantify walking patterns, reducing human error. The technology shows promise for diagnosing gait pathology and tracking treatment effects.
Researchers found that cricket populations have innate social rules, resulting in stable networks that form year after year. The study, published in BMC Evolutionary Biology, suggests that these networks are conserved over evolutionary time, influenced more by population size than environmental changes.
Researchers at Princeton University have developed a new method to transform individual selfies by adjusting angles and distances, creating more realistic portraits. The tool can also alter poses and generate 3-D head shots, with potential applications including 'live' photos that seem to move uncannily.
A team of researchers led by Andreas Velten is working on a camera technology that uses scattered-light photons to capture scenes outside human line of sight. The project aims to push the limitations of this technique over four years, with potential applications in medical imaging, disaster relief, and space exploration.
Researchers at Princeton University have developed a new method to transform individual selfies by adjusting angles and distances, creating more realistic images. The tool can also be used to generate 3-D head shots and potentially even create 'live' photos that seem to move.
A single camera can capture high-quality facial performance using a new method developed by Disney Research, which takes into account the underlying facial anatomy and skin thickness. This approach allows for robust and accurate tracking of facial expressions without requiring multiple cameras or extensive pre-computed facial motions.
Kansas State University researchers are investigating whether people have the same emotional connections with animals when watching them through live webcams and in real life. The study uses a
Researchers at FAU and Fachhochschule Lübeck developed custom-fit prosthetics using 3D scanning and printing, suitable for local production with recycled materials. The first prototypes have been printed and are being tested for longevity and stress resistance.
Scientists in France create a knuckleball machine to explore the zigzag secrets of one of football's most unpredictable shots, providing clues to much older scientific puzzles. The researchers discovered that unsteady lift forces and a specific velocity window contribute to the ball's erratic trajectory.
A NASA camera aboard the DSCOVR satellite captured a view of the moon as it moved in front of the sunlit side of Earth for the second time in a year. The images were taken using NASA's Earth Polychromatic Imaging Camera (EPIC) and show the moon crossing over the Indian and Pacific oceans.
Computer scientists at Duke University have developed software that allows users to specify what others can see on camera, preventing inadvertent disclosure of sensitive information. The researchers presented a system that enables users to select the part of a scene they want to share, either by hand or with a few clicks.
Automated camera system improves sports broadcasts by learning from human operators and achieving smoother footage without jerkiness. The system uses a new approach called imitation learning, which repeats multiple times and analyzes deviations to learn from human mistakes.
Marine biologists have discovered that shark traffic in and out of Palmyra Atoll's lagoon peaks between 7-8 pm. The study used dual-frequency identification sonar to monitor shark movement, revealing a rush hour for these marine predators.
Researchers found that people who take photos of their experiences enjoy them more than those who don't. Photo-taking increases engagement, making the experience more pleasurable. However, the effect is limited to active participation and not when taking pictures interferes with the experience.
Researchers capture pressure, temperature and chemical species maps for each explosion, reducing the need for multiple shots. The technique uses pyrometry and high-speed cameras to achieve spatial resolution of 1 mm for a 1 kg explosive charge.
Scientists capture lightning flash using high-speed camera at 7,000 frames per second as part of research on thunderstorm dynamics. The camera will be used to study upward electrical discharges from starters, jets and gigantic jets.
Researchers discover large secondary eyes in a spider species enable it to catch larger, more nutritious prey, which may explain the evolution of these enlarged eyes. The findings suggest the spiders' nocturnal nature and reliance on vision to hunt for prey on the ground.
Researchers at Carnegie Mellon University developed a method that incorporates the robot's arm as a sensor to improve the accuracy of environmental mapping. This approach enables robots to precisely locate their hands, which is crucial for tasks like inspection and manipulation.
New research reveals that body-worn cameras associated with an increase in assault against police officers when they choose to turn them on and off during their shift. This finding contrasts with current thinking that cameras should reduce the rate of use-of-force, but rather found it increased when officer discretion was used.
A UA computer engineering researcher is developing a guided simulation model to train surgeons on minimally invasive robotic systems. The system uses visual and haptic force guidance to help correct depth perception mistakes, reducing the risk of serious damage during complex procedures.
A study using a custom-built 'shark-eye' camera reveals that biofluorescence makes catsharks more visible to neighbors of the same species at depths where they live. The researchers found that the contrast of patterns on the biofluorescent sharks increases with depth, suggesting they may use it to communicate with one another.
A seismic network in Nevada is being used to monitor wildfires and provide early intelligence on more than 25 fires during the last fire season. The technology has the potential to remake firefighting by allowing for tactical suppression and scaling resources appropriately, saving time and money.
The study reveals that carnivore populations thrive in areas with preferred habitat and food sources, contradicting expectations of radioactive contamination. The camera survey captured 14 species, including gray wolves and raccoon dogs, which were more likely to be found in highly contaminated but suitable habitats.
Researchers create a deformable lens array that adapts to the sheet camera's curvature, producing high-quality images over a wide range of deformations. This innovation could lead to cameras the size of a credit card or wrapped around everyday objects.
Researchers discovered that trap-jaw spiders can snap their chelicerae shut at incredible speeds, outperforming even the fastest muscles. This high-speed predatory behavior has evolved multiple times within the Mecysmaucheniid family of spiders.
Researchers from MIT developed a new infrared depth-sensing system that works outdoors, using a smartphone with a $10 laser. The system captures four frames of video and subtracts ambient infrared light to improve accuracy. It has been tested on a driverless golf cart and shows promise for autonomous vehicles.
A UBC study found that high-speed and inexperience are top contributing factors to injuries on the Whistler sliding track. The study also revealed that more experienced sliders had lower injury risks, with those logging over 150 runs showing reduced risk.