Articles tagged with Photography
A new molybdenum-based image sensor has been developed, featuring a single pixel that requires only 1/5th the light energy of current silicon-based sensors. This breakthrough enables high sensitivity in low-light conditions, opening up new possibilities for astrophotography and biological imaging.
The 'Repentir' smart phone and iPad app uses computer vision algorithms to reveal the multiple hidden stages of a painting. Users can explore the artist's creative process by rubbing away layers or scrolling through sequence images.
A new study has found that adding a photo of a patient's face to their x-ray images can significantly reduce wrong-patient errors. The study showed that radiologists correctly identified mismatched pairs with photographs, with an error detection rate of 64%, compared to 13% without photos.
A UPNA researcher has developed 3D reconstruction algorithms that are on par with the best available techniques, but can be executed more rapidly on a computer. These algorithms use stereoscopic vision to capture depth and can be implemented in real-time using standard graphics cards.
Researchers successfully identified individual whale sharks in 85% of cases using public photographs, comparable to professional photographer identification rates. The study suggests that citizen-sourced photos can be a valuable tool for tracking whale shark populations and monitoring conservation efforts.
Scientists have developed a cheap and quick method to detect mercury contamination in water using a mobile phone. The technique involves placing a special sheet in the water, which changes color in the presence of mercury. Photographing the sheet with a mobile phone can even quantify the concentration of mercury.
The National Science Foundation has announced the 53 winners and honorable mentions of the 10th annual International Science & Technology Visualization Challenge. The contest, which received over 200 entries from 18 countries, featured outstanding visualizations that showcased complex scientific concepts.
A team of researchers from the Public University of Navarre has developed a new algorithm for improving the real-time capture of 3-D images, enabling applications in fields like 3-D video recording and intelligent systems. The technique uses stereoscopic vision to compare pairs of images and yields better results than previous algorithms.
A recent study found that men's facial prominence is higher in photographs from more gender-equal cultures, with women's bodies being more prominent. The bias is likely due to unconscious influences and can be reduced by awareness and education.
A new Caltech study found that facial photos taken at close range influence perception, making subjects appear less trustworthy, competent, and attractive. Researchers used digital warping to manipulate images, confirming the effect. The findings may have implications for computer vision and social judgments.
A new method uses fusion of photographs taken from different angles to create reliable reproductions of paintings, eliminating the need for sophisticated illumination and acquisition requirements. The postproduction process is fully automated and can be done with a commercial hand-held camera.
A University of Maryland School of Public Health kinesiology researcher suggests that moderate exercise can help people cope with anxiety and stress for an extended period after the workout. The study found that exercise not only reduces anxiety but also helps maintain that reduced anxiety when confronted with emotional events.
The study analyzes stock photography agencies' search and visualization systems to determine essential characteristics. Researchers identify the importance of automated tasks, such as image description inheritance and miniature generation, in these systems.
A new species of green lacewing, Semachrysa, was discovered in the Malaysian rainforest using online images. The insect's distinctive wing pattern was its most notable feature.
Research reveals that an image of a person can look strikingly different from one image to the next, making it difficult for unfamiliar viewers to identify them. However, familiar viewers find it easier to recognize individuals across various images. The study also found that variability within a person is greater than between people w...
The overall winner of the Wellcome Image Awards is a visceral photograph of a living human brain, showcasing its beauty and fragility. The image, taken during a surgical procedure to treat epilepsy, highlights the importance of medical photography in helping doctors make diagnoses.
Researchers at Duke University and the University of Arizona developed a gigapixel camera that captures unprecedented detail by synchronizing 98 tiny cameras. The camera's resolution is five times better than 20/20 human vision over a 120-degree horizontal field, with potential applications in surveillance, inspection, and photography.
Researchers found that images of the left side of the face are rated as more pleasant than those of the right side, possibly due to increased emotion intensity. The study also showed a strong preference for left-sided portraits in real-life photographs and confirmation from pupil size measurements.
The NASA visualization brings back the iconic 'Earthrise' photograph, taken by Apollo 8 astronauts in 1968. The image captures the moon's surface and the Earth's vibrant colors, showcasing the planet's beauty and fragility. The recreation uses detailed maps gathered by LRO and was funded by NASA's Science Mission Directorate.
Research published in PLoS ONE reveals that photographs of children with Down syndrome elicit less positive attitudes than those of typically developing children. The study found a strong negative bias among caregivers working with intellectually disabled persons.
The University of Colorado has developed a novel technique for 3D super-resolution imaging with the help of Boulder-based Double Helix LLC. This technology combines 3D optics and signal processing to provide multifunctional imaging capability, applicable to various scientific, industrial, and consumer applications.
Scientists created self-actuating materials by exposing polymer sheets to UV light, allowing them to fold into specific 3D shapes when water is added. The technique has potential for directing blood vessel or tissue growth in laboratory settings.
The book uncovers previously unpublished documents and color photographs that shed new light on Le Corbusier's architectural oeuvre. It explores his aesthetic principles, including the use of exposed concrete (béton brut), and examines how he defined artistic quality in construction sites.
Researchers found that Malaysian Chinese use a unique mixed strategy to recognize faces, focusing on the eyes and nose more than the mouth, which proved advantageous for accurate recognition of Chinese and Caucasian faces.
Researchers at Brigham and Women's Hospital successfully test a controllable endoscopic capsule that can 'swim' through the body. The capsule is equipped with a camera and can be steered using an MRI machine to photograph specific areas of interest wirelessly.
The Encyclopedia of Life has grown from 30,000 pages to over 900,000 with a 2,900% increase in content, thanks to new partnerships and language additions. The platform now serves information on 15,000 species in Spanish and provides conservation data from the IUCN and NatureServe.
Researchers have realized a new way to cool synthetic materials using a quantum algorithm, removing excess energy from ultra-cold atomic gases. This breakthrough enables the manipulation of individual particles at unprecedented temperatures, revealing a mysterious world that has never been seen before.
The researchers developed a technique that analyzes the uniqueness of images to match them across different domains, such as photos and paintings. This approach performed well on tasks like matching sketches with photographs, outperforming traditional methods that focus on shapes, colors, and composition.
Researchers have developed a system to measure the mechanical properties of living cells, which could lead to new ways to diagnose diseases and understand biological processes. The technique uses an atomic force microscope to study three types of cells, including bacteria, human red blood cells, and rat fibroblasts.
Researchers found that photos taken by police and fashion agents share similar characteristics, highlighting the universality of image-making processes. The study suggests that both fields use documentary portraits to fix identities motivated by transformation, with similar lighting, poses, branding, and record-keeping.
Researchers found that Yucatec Maya speakers and German speakers performed similarly when identifying mixed-emotion faces. The study suggests that emotions have evolved as basic human mechanisms, unaffected by language. This discovery challenges the idea that language plays a crucial role in understanding emotions.
Astronomers have detected stardust in debris discs of extra-solar planetary systems, providing insights into the planet formation process. The Jena research team found two systems with transiting planets, using photometric analysis to identify irregularities in the infrared range.
A study by Tel Aviv University researchers reveals that presenting positive information first, followed by a minor negative detail, can boost consumer appeal. This approach, known as the 'blemishing effect,' can be used in marketing to improve product perception and drive sales.
Researchers from Boston College and Harvard analyzed Pollock's techniques, revealing his use of jets, drops, and sheets governed by fluid dynamics. The team described Pollock's physical technique in terms of paint load volume, viscosity, flow rates, and gravity.
A new cell phone application called TagSense can accurately tag photographs with information about people, locations and activities. The system uses the multiple sensors on a mobile phone and those of other phones in the vicinity to provide more detailed tagging, making it easier to search and retrieve desired pictures.
Environmental anthropologist Kenny Broad and underwater photographer Wes Skiles were named Explorers of the Year for their work documenting Blue Holes in the Bahamas. Musician Jack Johnson received the Arts Ambassador for the Environment Award, while IBM was recognized for its research partnership with National Geographic.
Researchers at MIT's Computer Graphics Group have developed new methods to efficiently simulate blur in digital computer graphics, reducing rendering time by minutes. By simplifying the computation of blur, these techniques can create more convincing video games and frames of digital video, improving overall visual quality.
Research suggests that urban woodlands with moderate clearance (less than 50% of understory removal) support high bird diversity while still allowing for rambling opportunities. The findings have implications for forest management to balance ecological and social values.
A study found that people prefer therapists with well-organized, personalized, and comfortable offices. Offices rated as more orderly and soft were seen as having friendlier and more qualified therapists. However, gender stereotypes also played a role in the perception of office quality.
A team of researchers has developed a method to track the movement of geostationary objects in space using the position of stars. This technique can be used with small telescopes and in places that are not very dark, allowing for precise location and orbit determination of GEO satellites.
A new study using brain scans reveals that simple line drawings can activate similar patterns of brain activity as color photographs when viewing natural scenes. This suggests that the brain uses abstract representations to categorize scenes and doesn't need features like texture and color to tell a beach from a street scene.
Rhesus monkeys demonstrated flexible recall of simple shapes from memory, similar to humans, and showed ability to transfer memory skill to novel shapes. This finding suggests that the ability to recollect may have been present in our common ancestor 30 million years ago.
Researchers investigated how older women feel about their representation in media and society, finding complex emotions and transformative experiences. The project encouraged women to create alternative images using photography, art therapy, and video techniques, leading to increased confidence and self-acceptance among participants.
A Concordia researcher has developed a highly effective computer program to age photographic images of people's faces, improving the accuracy of age-estimation for missing-child investigations and national security. The technique combines active appearance models and support vector regression to predict future facial appearance.
The Wellcome Image Awards 2011 highlight the diversity of images available through the Wellcome Library's image repository. The winners use various techniques to capture the wonder of medicine and the life sciences.
Researchers have uncovered two photographic images of native Americans from the Amazon region, which were taken by John Thomson in 1911. The images depict the subjects naked to the waist and are part of a broader tradition of imperial photography that sought to document human 'types'.
Aaron Hertzmann, a professor at the University of Toronto's Department of Computer Science, has received the 2010 Steacie Prize for his exceptional contributions to computer graphics and machine learning research. His work focuses on applying machine-learning techniques to resolve complex problems in computer graphics.
A Galton-Darwin-Wedgwood pedigree has been found in the archives of Truman State University, revealing new insights into Charles Darwin's family life. The discovery, made by Professor Tim Berra, provides a unique window into the personal life of the famous scientist.
The discovery of primitive sponge-like creatures living in ocean reefs around 650 million years ago pushes back the clock on when animal life appeared on Earth. The fossils, found in South Australia, represent the earliest evidence of animal body forms in the current fossil record.
Researchers have developed a multifunctional nanoparticle that eliminates background noise, enabling precise medical imaging. The technique uses photoacoustic imaging to detect single cells, potentially revolutionizing cancer detection and molecular imaging.
The Frankencamera platform allows users to control photographic and computational hardware on cameras, creating new imaging applications. Researchers share six sample apps, including low-light imaging and lucky imaging, that demonstrate the platform's potential.
Agnieszka Bialek wins Royal Photographic Society's Selwyn Award for her work on multi-spectral imaging, which reveals details unseen by the eye. Her IRIS technology captures eight replicated images of an object at different wavelengths, enabling characterisation of materials with variations in colour or appearance.
A team of researchers used advanced imaging technology to colorize a black-and-white photograph of Matisse's 'Bathers by a River', revealing the artist's innovative methods and palette changes. The resulting image shows how Matisse transformed his work from vibrant colors to somber grays, offering insights into his artistic evolution.
Researchers developed a reversible watermarking system to verify the authenticity of digital images without modifying them. The system uses a Hash Message Authentication Code (HMAC) to embed and extract watermark bits, allowing for lossless data integrity verification.
A UBC researcher has discovered what makes Rembrandt's portraits so captivating by recreating four of the artist's most famous works using computer-rendering programs. The study found that viewers fixated on specific areas of the face, such as the eyes, and preferred portraits with 'eye guiding narrative' techniques.
Researchers in Spain have developed a method to create highly accurate three-dimensional models of historical buildings using laser scanners and software. This technology reduces the time spent on field work by up to 75% while capturing thousands of times more information than conventional methods.
Scientists at the University of Gothenburg have successfully photographed the movement of atoms during photosynthesis, revealing a temporary storage of light energy before chemical bonds form. The breakthrough could lead to more efficient solar panels by mimicking photosynthesis' sophisticated energy conversion process.
A study in Organization Science finds that securities analysts prefer incumbent companies' hybrid products that combine old and new technologies, ignoring their attempts to develop new ones. This bias may harm these companies as they struggle to compete with emerging technologies.
A new study in Organization Science journal suggests that securities analysts' reluctance to recommend investment in new technologies can harm veteran companies. The researchers found that analysts prefer strategies that extend existing technologies over those that directly respond to new technology, with negative implications for mana...
Researchers develop procedure for 3D reconstruction of crime scenes using single photograph, overcoming limitation of requiring at least two images.