Articles tagged with Photography
Scientists have developed a technique to enhance digital sensor capabilities beyond current limits, enabling applications in consumer photography, medical imaging, and space exploration. The new approach uses 'modulo' sampling to process a wider range of information, unlocking high dynamic range for sensors.
A study on Antarctic jellyfish was conducted using footage from an amateur nature video. The research team identified 12 species, with two likely representing undescribed species. A machine learning training set for video annotation was also developed.
A study analyzing over 120 million social media posts reveals that tourists focus more on nature in marine protected areas than neighboring coastal zones. The research found that these areas provide more cultural ecosystem services than adjacent coastal areas.
Engineers at MIT and the University of Twente study water jet impacts on droplets to inform needle-free injection systems. They developed a model predicting fluid jet behavior in human skin, aiming to minimize damage.
Researchers have developed a novel spectral-volumetric compressed ultrafast photography system that captures 5D information in a single snapshot. This breakthrough imaging technique enables new insights into ultrafast phenomena in physics and biochemistry.
Researchers at SUTD use nanoscale 3D printing to create ultra-realistic 3D images with a maximum pixel resolution of 25,400 dpi. The high-resolution light field prints display autostereoscopic images that change appearance when viewed from varying angles.
Researchers from Heidelberg University combined historical images and maps with current data to track glacier changes in the Nanga Parbat Massif. The study shows that the glaciers have been shrinking since the 1930s, but at a slower rate than other Himalayan regions due to avalanche activity and debris cover.
The eleventh edition of the Art of Neuroscience competition has been won by Yas Crawford for her artwork 'Cognition IX', which explores neurological interoception in Myalgic Encephalomyelitis patients. The winner was chosen from over 293 entries and received praise for its perfectly composed image, full of movement and dynamic flow.
A team of researchers has developed a method to detect deep fakes in geography, including satellite images and maps. The technique uses Cycle-Consistent Adversarial Networks (CycleGAN) to identify fake images, distinguishing them from real ones with 80% accuracy.
Researchers developed an AI algorithm that can accurately identify the tiger mosquito (Aedes albopictus) from photographs sent by Mosquito Alert users. The algorithm correctly classified 96% of images, providing near-real-time detection and enabling faster control of disease transmission.
Researchers at the University of South Australia have designed a dragonfly-inspired drone that boasts superior aerodynamic performance. The drone's unique body shape and long abdomen mimic those of the insect, allowing it to hover, cruise, and perform aerobatics with ease.
A new species of deep-sea dumbo octopus has been identified using a combination of non-invasive and minimally invasive techniques. The study utilized MRI, micro-CT, and gene analysis to gather morphological and molecular information on the specimen without causing harm.
The Tomographer algorithm transforms gene-sequencing data into spatially resolved images, mapping gene expression patterns across tissues. By analyzing tissue strips and mRNA measurements, the algorithm reconstructs spatial gene-expression patterns in tissues like the brain of the Australian Bearded Dragon.
A team of researchers from EPFL's Audiovisual Communications Laboratory used historic photographic plates to study the original light and colors of century-old scenes. They found that Lippmann's method captured 26-64 spectral samples, far more than modern techniques, and were able to recreate the original light using an algorithm.
Researchers found that neural networks trained on sound files of human language reached higher performance in image recognition, identifying objects and animals correctly 92% of the time. Using sound as a training tool improved results even with limited training data, outperforming traditional binary input methods.
A new technique, hyperspectral interference tomography, has been developed to study the structure of nacre, a biomineral found in mother-of-pearl. This nondestructive method allows for the assessment of nacre layer thickness, which records temperature and can be used to analyze fossil mollusk shells and learn about past climates.
A new study from the University of Portsmouth and Universities of Hagen and Mainz found that false memories can be reversed using specific interview techniques. The research involved implanting false memories in participants and then using strategies to help them retract these false recollections, while leaving their true memories intact.
Researchers from Skoltech have designed a software-based algorithm for synchronizing time across smartphones, achieving an accuracy of several microseconds. This method can be used to create a network of sensors and has potential applications in various fields, including photography and noise cancellation.
Researchers found that selecting fillers who are facially dissimilar to the suspect enhances eyewitness ability to accurately identify the perpetrator, while protecting innocent suspects. The counterintuitive technique improves outcomes without affecting the number of false alarms.
A novel technique uses synchronized recordings from grid-based listening stations to triangulate deer locations, reducing errors and increasing efficiency. The system has been successfully tested in Oze National Park, with accuracy of up to 15 meters.
Researchers in Japan have used machine intelligence to fine-tune algorithms for brain mapping by MRI, improving the accuracy and reliability of connectome estimation. The new technique generates more convincing results, particularly in detecting long-range nerve fibers, crucial for understanding brain function.
Scientists at the University of Bath developed OmniPhotos, a system capturing 360° VR photography without expensive specialist cameras. This approach recreates high-quality motion parallax, mimicking real-world depth perception, creating a more immersive experience.
A study published in PLOS One suggests that a freely available test, known as the UNSW Face Test, is able to rank facial recognition abilities with precision. Researchers argue that this test is perfect for identifying exceptional face recognisers and could lead to breakthroughs in fields such as law enforcement and national security.
Researchers investigate the purple and green emissions of STEVE, discovering tiny streaks that could be moving points of light. The findings suggest the green features are caused by turbulence in plasma at high altitudes.
A new study by Aarhus University uses AI to analyse thousands of WW2 photographs, enabling the identification of photographers based on image characteristics. The technology has significant applications in humanities and social sciences, including linking photo archives to war-related research.
Researchers have developed a camera that can film 3D movies at 100 billion frames per second, capturing ultrafast imagery with stereo-polarimetric compression. The camera uses polarization information to enhance its capabilities and may help scientists study sonoluminescence.
Researchers designed a compact UV camera capable of recording photons in the ultraviolet range in real time, achieving an imaging speed of 0.5 trillion frames per second. The system uses compressed ultrafast photography to capture unparalleled resolution with just one click.
Scientists have developed an all-optical imaging system that captures ultrafast dynamic processes at a record-breaking frame rate of 15 trillion frames per second. The method uses non-collinear optical parametric amplifiers, allowing for high spatial and temporal resolutions, and has the potential to become a new microscopy technique.
Josef Uyeda aims to bridge the gap between short-term evolution studies and long-term outcomes using computational tools and resources. He will analyze existing datasets to understand how species adapt to climate change and extinction.
Researchers used AI to distinguish individual birds based on plumage patterns, a task humans struggle with. The technique was tested on three bird species and showed promising results, opening up new possibilities for studying animal behavior in the wild.
Salk scientists have developed a new lineup method that reveals the strength of recognition memory for each face and eliminates unconscious biases. This technique, called paired comparisons, estimates the probability of correctly identifying the culprit, offering an unprecedented quantitative index of certainty.
Researchers at Facebook have developed an end-to-end system that converts 2D photos into 3D images, requiring no advanced photographic skills or equipment. The new technology provides seamless real-time conversion, robust enough to work on almost any photo, and generates results in seconds.
A recent study developed a new technique for photographing and data analytics to count lions, which has shown promising results in understanding their populations and movements. The current estimates of African lion populations are thought to be unreliable due to the use of outdated methods such as track counts and audio lure surveys.
Researchers used photographs of frogs in their natural habitats to identify individual species without capturing them. This method was successful in identifying 94.3% of the 'Beautiful stream frog' population, providing a promising approach for estimating endangered frog populations.
A study by University of Oregon researchers found that companies that successfully engage with their target audience and incorporate feedback into their prototypes are more likely to reach their fundraising goals and attract media coverage. Engaging with potential end-users early on can create buzz and increase the chances of success i...
A study published by the Endocrine Society found that patients with diabetes are more likely to lose meibomian glands in their eyelids, which may be a sign of elevated blood glucose levels. This could lead to a new biomarker for diagnosing diabetes and tracking average blood glucose levels.
Scientists have developed a new technique that can rapidly print two-dimensional arrays of cells and proteins mimicking various cellular environments. This method harnesses photolithography and programmable DNA, allowing for high-throughput study of cell interactions contributing to tissue function.
Researchers found that women are deemed more trustworthy than men in host photos, while high-quality images with the host interacting with others attract more bookings. Younger hosts and those with poor-quality photos are less sought after.
A study assesses the reliability of a forensic identification technique using photographic pattern analysis. The results show that even at low false positive rates, true positive rates are less than 40%, suggesting extreme caution when using this technique.
HDR images offer a wider dynamic range of luminance, simulating human eye adaptation to various lighting conditions. A new method stabilizes the camera response function while coupling colour channels, producing artefact-free results.
Scientists at Harvard University created an all-glass, centimeter-scale metalens with nanostructures that can focus light, revolutionizing applications like microscopy, cameras, and sensors. The breakthrough enables mass production of large metalenses using conventional chip fabrication methods.
Researchers studied traditional Khasi building techniques for living root bridges, which can reach over 50 meters in length and withstand centuries. The bridges' complex root structure provides stable and safe passage, while also serving as a natural cooling system for cities.
Mordanñage is a 19th-century photographic process that creates dramatic black-and-white images with veiling effects. Researchers have determined the chemical details behind the process, revealing how hydrogen peroxide and acetic acid soften the photographic paper, allowing copper to oxidize and form veils.
MIT researchers create a visual deprojection model that recovers valuable data lost from images and video by learning patterns in low-dimensional projections. The model has successfully recreated video frames showing people walking and recovered motion-blurred images, with potential applications in medical imaging.
The professor aims to improve radio frequency sensing systems and enhance consumer wireless communications by sharing the limited electromagnetic spectrum. This collaborative effort enables radar to detect targets with enhanced sensing capability and higher energy efficiency, while allowing wireless communications to access more spectrum.
Researchers develop 'hybrid' resists combining poly(methyl methacrylate) and aluminum oxide to improve lithography contrast and enable high-resolution silicon nanostructures. The approach uses an existing resist, metal oxide, and common equipment, offering a cost-effective solution for next-generation electronics.
The technology uses light field imaging techniques and machine learning to capture high-quality composite images of subjects through windshields. This enables long-range identity verification, vehicle recognition, navigation systems, and traffic monitoring systems.
A team of researchers from ICFO demonstrates an adjustable technique to manipulate light without mechanical movement, enabling the creation of dynamically tuneable lenses with high control and low power consumption. The Smartlens technology has potential applications in high-end systems and simple end-user-oriented imaging devices.
Concordia researchers develop a new technique to detect obstructions in bi-leaflet mechanical heart valves, which can help identify potential issues with blood flow. The method uses particle image velocimetry and phase-contrast MRI to simulate blood flow patterns, allowing for non-invasive detection of valve dysfunction.
The scattering spectrum of individual nanoparticles on daguerreotype surfaces exhibits a narrow blue/UV peak and broader red peak, resulting in a blue tone when viewed from above. The tone shifts to brown/red as the viewing angle increases due to changes in nanoparticle morphology and size.
A team of computer scientists has developed a method to analyze artistic portraiture, capturing facial features and individual style with high accuracy. The researchers used 'artistic augmentation' to transform photographic face data into more similar to artistic portraits.
A study analyzing 800 photos from the 2015 Syrian refugee crisis found that most depicted migrants as victims, with only 186 showing agency or positive moments. The research highlights the responsibility of photojournalists to convey a more comprehensive story, one that goes beyond shocking images.
Researchers at City University of Hong Kong have developed a novel compressed ultrafast photographic technique enabling both high frame rate and large frame number. This new technique offers an important tool for observing complex transient processes on the femtosecond timescale.
Researchers from Polytechnic University of Valencia and Ingheritag3D have digitized the Nasrid sword attributed to Ali Atar, a 15th-century warlord. The study utilizes photogrammetry and 3D modeling techniques to document the intricate filigree and ornaments on the sword.
Researchers are developing methods to extract DNA and analyze chemicals from fingerprints, improving identification rates. These techniques involve analyzing molecules like DNA, amino acids, or explosives left behind in fingerprints.
The team aims to develop a sorting-machine prototype using pupae images and machine-learning algorithms to process tens of thousands of images daily. They also design a robot to sort the pupae based on the result of the algorithm, with the goal of reducing tsetse populations in sub-Saharan Africa.
New research from the University of Surrey found that female graduates who dress more professionally are perceived as having a higher final mark and thesis points than their peers who dress in short dresses or skirts. Participants also deemed professional attire more appropriate for graduation.
A team of researchers has discovered a long-lived new state of matter in an iron pnictide superconductor, which reveals collective behaviors that compete with superconductivity. The discovery was made using laser-induced spectroscopy techniques, allowing for real-time observation of electron pairings and fluctuations.
Researchers studied how male broad-tailed hummingbirds combine speed, sound, and color in their displays to attract females. They discovered that the most dramatic aspects of the dive happen almost all at once, just before the male soars past the female.
Researchers found that closely related reef fish species with vastly different colour patterns are most pronounced when their ranges overlap. The study also discovered that this divergence in colour patterns can occur quickly over 300,000 years but remains stable for millions of years.