Articles tagged with Image Processing
Researchers at NC State University have developed an algorithm that can quickly and accurately reconstruct hyperspectral images using less data. This breakthrough enables faster imaging times and reduced memory requirements, making it suitable for applications such as security, defense, environmental monitoring, and agriculture.
A handheld microscope can capture details up to a half millimeter beneath the tissue surface, where some types of cancerous cells originate. Researchers expect to test it as a cancer-screening tool in clinical settings next year.
A new experimental paradigm aims to investigate the neural mechanism behind human imagination by synchronizing groups of neurons, known as neuronal ensembles. By combining familiar images or concepts, the brain triggers increased firing rates and synchronization of activities in object-specific neurons.
Researchers at Brown University have developed an algorithm that allows off-the-shelf cameras to capture high-quality 3D images without synchronized projector and camera hardware. The technique uses a structured light flash and can assemble images pixel by pixel to create accurate 3D models.
Researchers from Monash University have developed a new image modulation technique called SWIFT to study how the brain categorizes objects. The study found that SWIFT can stimulate specific neural activity patterns in the brain, enabling greater understanding of human visual processing and its potential applications.
Researchers create a new method for generating training images to simulate natural variability, allowing for more accurate predictions and decision-making in various activities such as environmental cleanup and oil drilling. By analyzing a series of images using the demon algorithm, scientists select representative snapshots that captu...
Engineers at MIT have designed an atomic force microscope that scans images 2,000 times faster than existing models, capturing chemical processes taking place at the nanoscale in near-real time. The instrument produces high-resolution 'movies' of condensation, nucleation, dissolution, and deposition of material.
Researchers trained pigeons to distinguish between benign and malignant breast histology and radiology images, showing their ability to generalize what they learned. The study suggests that pigeons could aid in understanding human medical image perception and performance assessment.
Researchers developed a system that sends highly compressed images to servers, which then process the images and send back modified files with reduced bandwidth consumption. The technique reduces bandwidth usage by over 98% and energy consumption by up to 85%, making it ideal for mobile image processing applications.
New York University researchers discovered a neural match for the complexity of visual activity, explaining how brains extract information from images. The study found that diverse neural groups transmit more information when responding to real-world images.
A brain imaging study found that certain facial patches prefer both faces and bodies to process an individual. This suggests the brain combines facial and body information to represent a whole person. The findings have relevance for understanding human social processing.
Researchers discovered that intrinsic neural connections can be used to help the blind detect their environment, making tasks easier and more intuitive. The study used a sensory substitution device to translate images into sound, allowing blind people to associate different sounds with features of their environment.
Researchers have developed a hand-held optical scanner that can image breast tissues in real time, offering benefits over mammography without ionizing radiation. The device uses near-infrared laser diode source to map optical absorption, which may indicate higher blood flow due to abnormalities like tumors.
The new EEFLUX application allows farmers to view field-scale maps of water consumption in near real-time, providing insights into evapotranspiration and water management. With Landsat satellite imagery, experts can track water consumption year over year, making it easier to monitor the effectiveness of conservation projects.
A team of engineers at Duke University has successfully demonstrated a previously unrecognized 3D imaging capability using modern digital cameras by repurposing its existing components. The research uses the image stabilization and focus modules to achieve similar results without additional hardware.
Research published in the International Journal of Biomedical Engineering and Technology reveals a wavelet transform approach that improves medical imaging. The technique boosts the signal-to-noise ratio and reduces artifacts, allowing for earlier disease detection and diagnosis.
A new multi-scale process adapts simulation to the structure of light transport in granular media on various scales. This enables efficient computation of photorealistic representation in images and animations, accelerating computation by a factor of ten compared to conventional path tracing.
A new study exploring the relationship between facial hair and health will survey sources from 1700 to 1918, including medical texts and personal diaries. The project aims to understand how beard grooming evolved over time and its connection to masculinity and hygiene.
Researchers have pinpointed the brain region responsible for unifying double vision, a process crucial for tasks such as aiming and catching objects. This finding may lead to new treatments for amblyopia, a condition where the brain favors one eye over the other.
A new multispectral microscope has been successfully demonstrated, enabling rapid and data-rich biomedical imaging. The instrument produces a continuous series of datasets revealing the presence of multiple colors at each point in a biological sample, revolutionizing pharmaceutical research.
Researchers at the University of Edinburgh found that the primary visual cortex controls fast responses to animal images, contradicting previous theories. The brain categorizes scenes based on small areas of shape and texture before using complex processing to identify objects.
A team of scientists has developed a new method to visualize the growth of complex self-assembled nanostructures in liquids, enabling detailed understanding of their formation. This breakthrough will facilitate future advances in nanotechnology.
Research by Dr. Christopher Pack suggests brain activity oscillations have a role in resetting sensitivity of neurons after eye movements and supporting representation of space. These patterns allow for rapid neural communication across different spatial positions.
Researchers at Karolinska Institutet found that people can be conditioned to associate images with specific pain responses without conscious awareness. This study suggests that unconscious learning may have a significant impact on higher cognitive processes, including pain perception.
Researchers at MIT have created a system that can label visual scenes according to type and also detect particular objects. The system uses deep learning and achieved an accuracy of 50% in labeling scenes, outperforming human performance in some cases.
Scientists have discovered that uncertainty in causal relationships is the main factor in determining one-shot learning. The ventrolateral prefrontal cortex evaluates such uncertainty and activates one-shot learning when needed. This finding could lead to new approaches for helping people learn more efficiently.
A team of scientists has captured live images of taste cells on a mouse tongue, showing that each taste bud contains cells for different tastes. This breakthrough complements recent studies on the brain areas associated with taste and may lead to new experiments to monitor brain activity while imaging the tongue.
Researchers at Ruhr-Universität Bochum used CT imaging to examine the buoyancy of ammonite shells. Their analysis suggests that ammonites could have swum freely in water after hatching, contradicting previous theories.
Tropical Cyclone Olwyn has formed in the Southern Indian Ocean and is forecast to make landfall near Cape Cuvier in Western Australia. The cyclone is intensifying and moving south-southwest at 12 knots, with maximum sustained winds of 55 knots.
A team of scientists and art conservators used a simple light bulb, SLR camera and computational power to uncover new details of Gauguin's printmaking process. The technique allowed them to measure the surface structure of prints, revealing that white lines were on a flat surface and ink sat atop ridges in the paper.
A new approach uses progressively trained deep convolutional neural networks to analyze sentiments in images. The method outperforms existing techniques on Twitter image sentiment analysis, even exceeding text-based sentiment classification on the same messages. This technology could inform economists and predict election outcomes.
A new image processing technique developed by Disney Research Zurich enables video effects like detailed actor faces despite lighting changes. The local tone mapping method preserves rich visual detail while eliminating ghosting and camera noise.
Researchers developed a method to securely display 3D images on smartphones by scanning QR codes without accessing the Internet. The system uses integral imaging and encryption to protect data, ensuring only authorized devices can access the content.
The new lattice light sheet microscope collects high-resolution images rapidly, minimizing damage to cells. It enables biologists to visualize the three-dimensional activity of molecules, cells, and embryos in fine detail.
Using Structure-From-Motion Photogrammetry, researchers are creating high-resolution 3-D models of cliff formations in Colorado and Utah. This approach allows for detailed analysis of layered rock formations and the impact of erosion on landscape formation.
A study published in PLOS ONE found that brain activity can predict abstract judgments, such as time reference, even when participants were unaware. The research also sheds light on how images can prompt people to think about the present or future, contributing to our understanding of impulsive behaviors.
Researchers identified theta and beta wave activity associated with fear processing in the brain, including early increases in theta activity and a left lateralized desynchronization of the beta band. This study provides insight into how the brain prioritizes threatening information over other cognitive processes.
Robo Brain is a large-scale computational system that learns from publicly available internet resources. It will process images to pick out objects and connect them with text to recognize patterns and behaviors. The system employs structured deep learning, allowing robots to understand how the world works and interact with humans.
Researchers at the Max Planck Institute of Molecular Cell Biology and Genetics have developed a method to capture detailed three-dimensional images of cardiac dynamics in zebrafish. By combining high-speed Selective Plane Illumination Microscopy and clever image processing, they reconstructed multi-view movie stacks of the beating heart.
A new type of Digital Zenith Telescope prototype has been developed in China, utilizing CCD camera and high-precision tiltmeter to improve efficiency and accuracy. The instrument can measure the deflection of the vertical and variations of the local plumb line, with single-observation accuracy up to 0.15-0.3
Researchers found psilocybin inhibits amygdala activity, weakening negative stimuli processing and correlating with enhanced positive mood. This mechanism may lead to novel treatments for depression and anxiety disorders.
Researchers have discovered five new debris disks around young stars in the Hubble archive, providing insights into planetary system formation and evolution. The disks are composed of dust particles formed from asteroid collisions and offer a glimpse into the early solar system.
A neurofinance study confirms that financial decisions are influenced by emotions and previous experiences, leading to increased risk-taking behavior after losses. The study used operational magnetic resonance imaging to analyze brain activity during risk-taking choices, revealing a link between emotional reactions and risk acceptance.
An interdisciplinary team of researchers at KIT developed a technique to record 3D X-ray films showing internal movement dynamics in spatially precise and temporal manners. The scientists applied this method to a living weevil, generating complete 3D film sequences in real-time or slow motion.
Jayan Thomas is working on creating materials for a 360-degree 3D image without glasses. His research has led to a $400,000 NSF grant to develop display screens using nanotechnology.
Researchers at the Ames Laboratory have developed a new method to generate broadband terahertz waves using metamaterials. This innovation has the potential to revolutionize fields such as non-invasive imaging and sensing, as well as high-speed information communication, processing, and storage.
Researchers at MIT found that the human brain can identify concepts in images presented for 13 milliseconds, challenging previous assumptions about visual processing speed. The study suggests that
Recent model calculations suggest that Earth's primary crust formed during the Archean eon was so dense it subside into the mantle. This process, known as delamination, triggered a return flow of mantle material to form new crust.
A new study by Claudia Townsend and Barbara E. Kahn found that visual presentation can lead to information overload and result in less systematic consideration when making a purchasing decision. Small image sets are key to reducing visual overload, promoting more careful review of options.
Researchers found that brainwaves indicate the brain processes and understands hidden objects in everyday life, despite the subjects not consciously perceiving them. The study challenges existing models of how the brain processes visual information, suggesting a more complex role for the brain in interpreting visual input.
A new Northwestern University study tracked the auditory system's response to highly complex auditory-visual stimuli like music and moving images. The research shows that the left auditory cortex specializes in processing precise timing for sounds and applies this ability to encode auditory-visual synchrony, but only in certain situati...
A new USC study found that the brain activates more strongly to watching hateful people suffer compared to likable individuals. The 'pain matrix' of the brain is thought to be involved in processing complex social situations, and this study suggests it may prioritize monitoring enemies over loved ones.
TNO researchers Alexander Toet and Maarten Hogervorst win the Rudolf Kingslake Medal for their work on statistical mapping approach for night-vision applications. The paper presents an overview of their progress in achieving color constancy and computational simplicity.
The Journal of Medical Imaging will cover fundamental and translational research and applications focused on photonics in medical imaging. The journal will mirror the scope of the annual SPIE Medical Imaging symposium, covering topics such as imaging physics, tomographic reconstruction algorithms, image processing, and more.
Scientists have finally mapped the brain region responsible for numerosity, distinguishing between small and large quantities. The discovery reveals a topographical layout of numerosity in the human brain, with neurons organized to facilitate communication and interaction over short distances.
A study by Davide Zoccolan and colleagues found that the anterior inferotemporal cortex (IT) categorizes objects based on visual similarity, except for four-legged animals which are represented by semantic meaning. The IT retains a 'raw' lower-level coding of object properties like color and size.
Researchers found that individuals who look at the tip of the nose or mouth can identify faces with equal accuracy as those who gaze below the eyes. The study sheds light on the complexities of face recognition, suggesting that people develop distinct optimal strategies to maximize identification accuracy.
Researchers at Harvard University are developing new techniques to improve digital imaging, including a method to mimic the appearance of translucent objects and optimize screen hardware for adaptive displays. Their work has the potential to advance artificial vision, 3D displays, and video editing.
Researchers at Saarland University used DESY's x-ray source to study the transformation of supercooled liquids. They observed that these liquids transition from a 'fragile' to a 'strong' state with increasing order despite constant density, and this process was detectable in temperatures ranging from 1200 K to 800 K.
Two Salk studies reveal that neurons in area V4 of the visual cortex exhibit trade-offs between stimulus complexity and translation invariance. This challenges the existing understanding of neural processing, with implications for building more advanced computer systems and developing therapies for visual disorders.