Articles tagged with Digital Data
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.
The new Keck website demonstrates advances in digital mapping by providing a customizable interface for users to access various data sets. The site combines ArcGIS Server and Google maps, offering an intuitive way to access data, and is significantly faster than comparable searches, returning results five to six times faster.
The ONOM@TOPIC project developed advanced prototypes for new-generation e-ID cards and SIM devices, utilizing Near Field Technology to enable wireless data exchange. These innovations led to the creation of a global standard, IAS-ECC, now used in various European e-government programs.
Experts will present on techniques using digital technology to separate conjoined twins, develop facial prostheses, and analyze anthropologic specimens. The symposium aims to enhance outcomes through the use of digital tools, such as radiographic data and tactile medical modeling.
The Fraunhofer Institute developed FlashFind to enable swift, intuitive full-text search on mobile devices for large datasets. Users can quickly locate streets, cities, and points of interest without network access or limited keyboards.
A new study published in the American Journal of Roentgenology found that digital mammography significantly lowers radiation doses (22%) compared to conventional film mammography. This reduction could be greater for women with larger and denser breasts, leading to improved cancer detection rates.
A digital checklist system can reduce fatigue in emergency drug administration during pandemics, according to a study. The use of personal digital assistants also shows promise in improving efficiency and accuracy in medication distribution.
The National Evolutionary Synthesis Center is part of a major digital data initiative to improve access to Earth's biota and environment data. Dozens of institutions partner to provide secure, permanent access to biological and earth sciences data.
Gordon is a powerful supercomputer that will use flash memory to speed solutions to critical science and societal problems overwhelmed by the growing amount of data generated by digital devices. The system will feature 245 teraflops of compute power, 256 TB of flash memory, and four petabytes of disk storage.
Robert Street has been recognized by the American Institute of Physics (AIP) with a $10,000 Prize for Industrial Applications of Physics. He developed flat-panel digital X-ray detectors, which have replaced traditional film X-ray machines in many medical applications.
Vanderbilt University astronomers participate in the Baryon Oscillation Spectroscopic Survey (BOSS) to measure the distance of galaxies and quasars. The team uses 400 simulated universes to test data analysis methods and interpret BOSS's measurements of dark energy.
Researchers developed prediction models to identify eroded waterways from digital terrain information, enabling the placement of grassed waterways and reducing soil erosion. These models accurately identified potential locations of erosion-prone areas, corresponding well with actual field observations.
BioVault uses biometric data to create a secret key for encryption, resolving the asymmetry issue in traditional biometric systems. The system authenticates users directly with biometrics, providing irrevocable identification and authentication.
Researchers at Berkeley Lab have developed a new ultra-dense memory chip that can store up to one trillion bits per square inch and retain data for over a billion years. The chip uses a crystalline iron nanoparticle shuttle enclosed within a multiwalled carbon nanotube.
Researchers analyzed nearly 60 terabytes of data from EverQuest II, a fantasy massive multiplayer online role-playing game, to study social network configurations. They found that players tend to stick close to home, forming groups with people they already know, and women are often the most dedicated and satisfied players.
A blue ribbon task force has issued its interim report, highlighting the need for sustainable economic models to provide access to growing amounts of digital information. The report identifies systemic challenges, including inadequate funding models, confusion among stakeholders, and a lack of incentives for collaboration.
A researcher used digital photography to digitize 2,500 documents, saving $15,000 on photocopying costs. He catalogued and studied the collection using Google's Picasa software, eliminating the need for frequent return trips to a foreign country.
The Citipix Collection, valued at over $14.3 million, is a historic snapshot of urban history in the US at the turn of the century. The collection consists of 500,000 color-stereo images taken between 1999-2002, providing clear detail up to six inches off the ground.
The University of Delaware has received $400,000 from NOAA to continue development of an ocean observing system for the Mid-Atlantic region. This funding is part of the national Integrated Ocean Observing System (IOOS), which aims to coordinate ocean data collection and delivery for various applications such as storm forecasting and em...
Computer scientists have developed a solution called Pergamum, which uses hard disk drives to provide energy-efficient and cost-effective long-term data storage. The system is designed to be reliable, scalable, and adaptable, making it suitable for businesses and individuals looking to preserve digital data.
A new technique developed by Dr. Eli Peli's team allows people with low vision to improve their ability to see and enjoy television with enhanced image contrast. The method, which can be easily incorporated into digital TVs and internet video, enables visually-impaired individuals to select the desired level of enhancement.
InStream Media, developed at Stevens Institute of Technology, has signed a distribution agreement with BIG Interactive to distribute its Steganographic Embedded Non-Invasive Advertising platform in Singapore. The platform uses advanced steganography for interactive and consumer-initiated advertising with instant feedback.
A new radiological diagnostic tool called stereo mammography reduces false-positive findings by 49% and missed lesions by 40%. The technology cuts the number of women recalled for additional tests in half, eliminating anxiety for patients and their loved ones.
The Million Book Project has completed the digitization of over 1.5 million books, ranging from Mark Twain to Confucius, and made them available through a single web portal. The collection includes rare and orphan books in multiple languages, with the goal of making all published works accessible worldwide.
Larry Hornbeck invented Digital Micromirror Devices (DMDs), chip technology behind HDTV, for manipulating light digitally. He received the 2007-2008 Prize for Industrial Applications of Physics from the American Institute of Physics for his pioneering work.
The Preserving Virtual Worlds project aims to develop standards for preserving digital games and interactive fiction like Second Life. The project will explore methods, infrastructure, and technology for preserving complex software, content, and interactivity in computer games and electronic literature.
A new study reveals that Antarctic icebergs are hotspots of ocean life, supporting thriving communities of seabirds above and a web of phytoplankton, krill, and fish below. The researchers found that the icebergs produce a halo effect with increased phytoplankton, krill, and seabirds out to a radius of more than two miles around them.
Victor Lawrence, a pioneer in digital signal processing concepts, has been awarded the IEEE Simon Ramo Medal. His work on voiceband modems, digital subscriber line technology, and broadband transmission paved the way for worldwide Internet access and high-speed data communication.
Researchers at MIT have developed new analog circuits that eliminate operational amplifiers while maintaining benefits, leading to greater power efficiency. The new comparator-based switched capacitor (CBSC) circuits offer a promising solution for high-performance analog circuits in emerging technologies.
The study found that 43% of Internet users feel strongly about their virtual communities compared to their real-world ones. Online communities lead to offline actions and social activism, with a significant majority logging in daily.
A nationwide neighbourhood classification system has been developed using Experian data warehouse and public sources. The system allows users to tap in their postcodes to find out about the likely use of ICTs in their neighbourhoods or those of their friends. Members can also email comments and suggestions.
A new study by Northwestern Memorial Hospital reveals digital mammography reduces technologists' acquisition time by 35% and increases physician interpretation time by 57%, sparking discussions on balancing financial goals with patient care.
Ames Laboratory researchers have created an AI-powered system that can detect secret files hidden in digital images using steganalysis. The system, utilizing artificial neural networks (ANNs), has been trained on a database of over 10,000 images and achieved high accuracy rates.
Emmanuel Candes, a Caltech professor, has been awarded the $500,000 Waterman Award for his groundbreaking work in harmonic analysis and signal processing. His research aims to improve signal processing and analyze complex waves, with potential applications in medical imaging and everyday technologies.
Researchers are creating a high-resolution, 3D online catalog of fishes using MRI technology, allowing for the digital dissection of preserved specimens. The Digital Fish Library project will image at least one fish family per 482 families worldwide, promoting biodiversity research and education.
Researchers create patterned magnetic films using Permalloy and cobalt, with dots measuring 100 nanometers in size. The team uses a state-of-the-art TEM to map the magnetic properties of each dot, enabling precise control over spin orientation and switching mechanism.
Recent Himalayan earthquakes may be followed by larger events in the same region, while medieval earthquakes were much larger and less frequent. The study aims to understand what governs the recurrence interval and size of these rare events.
A new technology called tomosynthesis has been shown to decrease false-positive screening mammography findings by half, allowing for more accurate detection of early breast cancers. In a study of 98 women, tomosynthesis was found to be as good as or better than diagnostic mammography in 88% of cases.
The future of medicine is shifting towards personal digital assistants (PDAs) that merge functionality into one device. Dr. Daniel C. Baumgart argues that PDAs can change the way healthcare is delivered by integrating information exchange, making it more versatile, customizable, and portable.
The University of California, San Diego and Keio University successfully streamed nearly six hours of 4K content in real-time via 1 Gbps IP networks from Tokyo to San Diego. The demonstration showcased the feasibility of networked distribution of high-quality digital media over long distances.
The National Institute of Standards and Technology (NIST) has developed innovative authentication mechanisms for handheld devices, including proximity beacons and mobile device authentication. These mechanisms use location-based authentication to secure sensitive information on these devices.
The RIT study found that museum imaging was output-driven and subjective, with a lack of standardized protocols. Key findings include the need for objective evaluation methods, improved color management, and more efficient workflows to enhance digital preservation.
A recent study by ECRI found that digital mammography does not significantly improve breast cancer detection rates compared to traditional X-ray imaging. While the new technology may offer some incremental benefits, such as reduced radiation exposure, its cost-effectiveness and diagnostic accuracy need further evaluation.
The Common Message Authentication Code (CMAC) is a new authentication mechanism that uses block ciphers to verify the integrity of digital data. Developed by Japanese scientists Tetsu Iwata and Kaoru Kurosawa, CMAC is part of NIST's ongoing effort to update block cipher-based algorithms.
The U.S. National Science Foundation and NEH have launched an effort to document dying languages worldwide using modern cyberinfrastructure tools. Over $40 million in funding supports various research projects, including language documentation, archival digitization, and fellowship awards.
The UK NHS telemedicine initiative has failed to deliver promised benefits, with integration issues and inadequate patient consultation hindering its success. New portable telecare systems for monitoring chronic illnesses are being developed but face similar challenges.
The NIST guide provides practical techniques for extracting digital data without altering information or making it appear altered. It covers topics such as securing digital evidence, hardware/software operating systems, physical access, and retrieving configuration information.
A study at Santa Barbara Cottage Hospital found that PACS implementation led to a 39% increase in work-related relative value units (WRVU) per radiologist, indicating improved productivity. Staffing remained the same despite increased patient volume, suggesting efficient use of PACS can handle growth without adding staff.
Researchers at National Institute of Standards and Technology (NIST) offer guidelines for preserving CDs and DVDs. Handling discs with care and storing them in a cool, dark environment can help extend their lifespan. A quick reference guide to the research group's findings is available on NIST's website.
The new 'camera pill' technology has shown significant potential for diagnosing small bowel disease, particularly in conjunction with computed tomography. It can detect more abnormalities than standard imaging techniques and provide detailed images of the entire small intestine.
The new tool reduces errors in assessing projection systems by filtering out stray light. It's a simple, low-cost device that aids engineers in evaluating the performance of digital projectors.
The University Hospitals of Cleveland is using GE's RapidScreen Digital to improve lung cancer detection rates. The CAD system analyzes digital x-ray data and draws circles around suspicious regions, focusing radiologists on potential abnormalities.
Researchers at Princeton University have developed a new memory device that stores digital information permanently in a plastic polymer coating. The device combines an inexpensive and easy-to-produce material with thin-film silicon electronics, enabling fast and efficient data storage.
A new grant from NSF's ITR Program will support the development of an integrated system, AMADEUS, which uses IT for real-time data gathering and computational modeling. This can lead to safer, more efficient, and economical underground construction methods.
Scientists found that galaxies and extremely massive black holes seem to grow together, with rapidly growing black holes fueling faster galaxy growth. This discovery sheds light on an astrophysical mystery and reveals a crucial link between the two cosmic phenomena.
Researchers Jody O'Sullivan and Pierre Moulin have developed a theory that sets fundamental limits on the amount of information that can be reliably hidden in various data types. This breakthrough has significant implications for security applications, including detecting forgery and intercepting terrorist messages.
SpeechGear's Compadre language translation technology offers simultaneous two-way translation of spoken language, generating written records and handling nuances of language translation. The system connects to a remote server for massive computing power, enabling seamless verbal communication with individuals speaking different languages.
A study of two Georgia cities reveals that basic IT literacy has only marginal success in helping underserved groups access economic opportunities. Most disadvantaged social groups face difficulties sustaining their use of technology beyond initial classroom training, leading to frustration and limited benefits.
A study by Lynette Kvasny and Eileen Trauth finds that technology skills alone do not bridge the digital divide for underrepresented groups. Social and cultural barriers, including institutionalized biases, limit access to IT careers.
The Automatic Linguistic Indexing of Pictures (ALIP) system uses a pictorial dictionary to associate images with keywords, allowing for more accurate image annotation and search. The system has demonstrated great potential for use in biomedicine, digital libraries, and other fields.