Articles tagged with Digital Data
Researchers have developed a new technique for embedding data in images without causing distortion. Authorized recipients can extract the embedded message while recovering the original image intact. This technology has significant applications in authenticating images, detecting changes, and encoding information about the image itself.
Researchers have developed a new database security system that enables anyone with a computer connected to the Internet to provide database services. The system uses digital signatures and proofs to guarantee the authenticity of data entries, making it difficult to forge or falsify information.
A $26.5 million grant has funded a massive study comparing digital and film mammography to determine its effectiveness in breast cancer diagnosis. The Digital Mammographic Imaging Screening Trial will involve almost 50,000 women and provide valuable insights into the technology's ability to detect early breast cancers.
Marine scientists at UNC-CH and Duke University have launched a ferry-based water quality monitoring system in the Neuse River, generating valuable data for analysis. The system, called FerryMon, aims to evaluate and model how Pamlico Sound's ecosystem responds to human and natural impacts.
The Global Biodiversity Information Facility (GBIF) will create a searchable database of species, facilitating the digitization and sharing of biodiversity data. This initiative addresses the lack of accessibility to biodiversity information in developing countries and aims to support scientific research and conservation efforts.
The Grid Physics Network initiative will create a virtual data system, allowing scientists to access and manipulate massive amounts of data from various institutions. The project has the potential to boost computing power and storage capacity, benefiting fields such as genomics and business applications.
The hospital's new digital mammography system offers improved diagnostic evaluations and quicker image acquisition, reducing patient anxiety and inconvenience. Researchers will collaborate with GE Medical Systems to develop computer-aided detection software programs for better patient evaluations.
A team of researchers found that radiologists prefer different images for evaluating various breast tissue abnormalities, requiring new computer programs for optimal results. The technology holds great promise in finding breast cancer earlier, but optimizing images for different tasks is crucial.
Compressing coronary angiograms for delivery over telephone or computer lines can lead to diagnostic errors, according to researchers. Image quality is progressively lost with increasing compression, making it difficult for clinicians to detect subtle diagnostic features.
Researchers at Penn School of Medicine have developed a prototype of an integrated database that can instantly retrieve and store digital breast images from mammography facilities across the country. The project aims to improve detecting and diagnosing women with breast cancer in a more controlled and cost-effective manner.
A partnership between conservation organizations and universities uses remote sensing technology to assess gorilla habitat, track population, and manage National Parks. The project aims to rebuild Rwanda's national university and recover from a devastating war and genocide.
Astronomer Alberto Conti and colleagues have developed a new technique to analyze massive galaxy data using computer analysis. By combining theoretical analysis with statistical techniques, they aim to uncover the most important attributes of galaxies that can be observed.
The Landsat 7 spacecraft has acquired over 50,000 scenes of the Earth's surface, providing detailed images of natural disasters, unique weather patterns, and glacial changes. The satellite's data will support global change research and inform decision-making about environmental issues.
NASA scientists presented new findings on ozonesonde data, glaciers, Mars impact features, Landsat-7 mission performance, tropical landscapes, and more. The results include insights into ozone layer changes, ice stream movements, and buried impact basins on Mars.
SPARC's Scientific Communities Initiative has awarded grants worth half a million dollars to Columbia University Press's Columbia Earthscape, the California Digital Library's eScholarship, and MIT's CogNet. The grants aim to stimulate and accelerate digital science publishing ventures based in academia.
The Networked Digital Library of Theses and Dissertations (NDLTD) is expanding internationally, with UNESCO joining and collaborations with the NSF, DFG, and ISTEC. These partnerships aim to overcome language and policy challenges, enabling easier sharing of electronic theses and dissertations across countries.
Scientists are working on developing new technologies to store, access, and search large volumes of data. The team aims to improve data management for next-generation science projects like the Sloan Digital Sky Survey, which will produce 40 terabytes of data.
Researchers at Penn State have developed a new mobile data access system (MDAS) that enables efficient access to diverse data sources through both wired and wireless connections. The system uses multidatabases to provide integrated access to multiple databases with a single query, reducing traffic jams caused by simultaneous queries.
The use of computers has transformed the field of chemistry, enabling researchers to automate large-scale testing of compounds and speed up drug discovery. Electronic lab notebooks are also being adopted to share information and streamline the process.
The Modular-MPC 1/16 system by Aspex Microsystems Ltd. offers high-speed 3D data visualization with 10 frames-per-second performance for 16 million data elements. It achieves over 25 billion operations per second and is suitable for complex applications like computational fluid dynamics.
The National Geodata Forum will focus on using geospatial data to create livable communities. The event brings together over 400 stakeholders to discuss how to make information and power flow from the bottom up.
The Hobby-Eberly Telescope has successfully observed a distant quasar candidate, confirming its status and providing insight into the universe's early evolution. The instrument will also enable detailed study of objects in and near the Milky Way with the addition of two new facility-class spectrographs.
Leaders from national parks, forests, and local communities visited the Idaho National Laboratory to share resources and expertise. The visit aimed to coordinate decisions and manage data between agencies, with a focus on regional transportation, infrastructure, and natural resource management.
Kodak and Intel are teaming up to produce a device that lets normal stills cameras take digital pictures. The new technology uses microchips that can be built into film cameras, allowing images to be transferred to CD-ROM for permanent storage.
The Geographic Information System Interactive Map Server allows users to view maps of major geographic features, including location of earthquake faults and technical data. The site draws on databases created at Cornell over the past six years, making geological data accessible to researchers and educators worldwide.
The 'Dissertation Online' project aims to digitize theses, enabling researchers to search and access them quickly. The initiative involves adding meta-data to scientific texts, developing software tools for targeted searching, and providing guidelines for digital theses.
The Hopkins University replaced a failed 24-inch telescope with a smaller one used for stargazing, ensuring the success of the Sloan Digital Sky Survey. The telescope was retrofitted with new optics and is now ready to contribute to the mapping of millions of galaxies.
Researchers at Purdue University have developed an invisible digital watermark to protect copyrights for images on the web. The technique, tailored for Web-based imaging, embeds the watermark in pixels, allowing for verification and detection of unauthorized copies.
A new computing technique uses chaotic elements to 'evolve' answers, offering an alternative to traditional digital computers. The system has demonstrated handling various operations, including addition, multiplication, and Boolean logic.
Researchers developed a method to send data by bouncing radio signals off meteor trails during the Cold War. A Seattle-based company, StarCom Technologies, has created a civilian version of this system as a cheap alternative to satellite technology.
Researchers developed a tamper-proof watermarking process that protects both owners and legitimate customers of multimedia data. The system combines encryption with part of the original image to create an invisible watermark.
The Sloan Digital Sky Survey's unique telescope has achieved first light, demonstrating its capabilities to create a deep, high-resolution, multicolor digital map of the sky. The telescope will incorporate two spectrographs to provide information about the chemical composition and distances of celestial sources.
NASA's Global Hydrology and Climate Center provides real-time geostationary satellite data, enabling users to view weather formations, temperature, winds, and precipitation in various regions. The center offers an interactive viewer with low-resolution animations and on-demand image sequences.
The Virginia Tech Center for Environmental Applications of Remote Sensing (CEARS) will provide detailed maps and spatial data to support informed development project decisions. CEARS will leverage NASA's resources and expertise to advance remote sensing research, education, and outreach.
Starlight, a 3D visualization technology, was developed to help decision-makers navigate complex data and identify critical details. It enables users to analyze massive volumes of information across various media types, including structured and unstructured text, maps, digital data, video, and satellite imagery.
The University of Rochester's animation technology is part of the new MPEG-4 standard, which brings together audio, video, and animation technologies. This integration promises to make video editing more accessible and improve video quality, with features such as point-and-click ease and automatic image manipulation.
A new digital X-ray technology being studied at Thomas Jefferson University Hospital has the potential to replace film-based radiography, reducing healthcare costs and improving patient care. The technology offers enhanced image quality, lower radiation doses, and increased efficiency for radiologists.
Astronomers, led by Professor Patterson, use digital cameras and computers to record binary star variations. This allows for continuous monitoring of stars across the globe, providing valuable data to aid in understanding celestial mechanics.
Researchers at Carnegie Mellon University are collaborating with Digital Equipment Corp to create a new, high-performance desktop computing environment (HPID) that includes advanced video capabilities. The system will involve about 500 state-of-the-art computers and servers interconnected through a very high bandwidth, low-latency netw...
The Virginia Tech project aims to develop a National Digital Library of Theses and Dissertations, increasing accessibility of graduate research results. With federal funding, over 40 institutions will benefit from electronic thesis submission and retrieval, enhancing knowledge transfer.
The digital hard hat combines functions of a camcorder, tape recorder, notepad, and digital camera into one device. It allows workers to collect, store, receive, and transmit construction-project information via text, images, sound, and video.
Researchers developed polymer-based photonic materials that can store thousands of times more data than traditional CDs. The new materials utilize two-photon absorption to enable efficient color movie storage and allow for compact data storage, making them ideal for archiving large quantities of images.