Researchers of the Saarland University’s Intel Visual Computing Institute overcome this obstacle by linking computer and monitor via an ‘Internet Service’. By this means, a screen’s contents can be shifted freely to any terminal’s display and even shown on large-scale monitor walls. The Saarland University’s scientists present their results for the first time at stand F34, in hall 9 at the computer fair Cebit. The trade show takes place in Hannover from March 6 to 10.
“Some try to play it off with a joke at their own expense; others wish the ground would open and swallow them up. So it happens every day during innumerable meetings,” comments Philipp Slusallek, professor of computer graphics at the Saarland University and scientific director in the German Research Center for Artificial Intelligence (DFKI). More and more embarrassing moments pass, until the person giving the talk finds the right cable to connect the projector and the presentation can finally be seen by everyone else.
Philipp Slusallek and his team wanted to cope with this cable tangle, and found an answer to the issue. Their solution even extends to the possibility of visualizing three-dimensional content on large monitor walls. “The approach is so simple,” explains Alexander Löffler, who, jointly with researchers of the Intel Visual Computing Institute, developed the relevant software ‘NetVFB’. Once installed on the computer, every application is compatible. The application’s monitor image can be shown in the “virtual frame buffer,” with the result that it is visible as a service on the network. The monitors in the conference room are also shown as services on the network. Löffler adds: “Now it is possible to show the presentation at the touch of a button on the requested display, enabled by a an Internet transmission.”
But there is more to come. With the new software, different laptop users’ screen images can be displayed on just one monitor. Due to the fact that the virtual frame buffer can be shown on numerous displays at the same time, it is also possible to observe and control a presentation via smartphone. The software can also be applied outside of conferences. Since modern LCD displays have a marginal width of only two or three millimeters, you can use them to build huge monitor walls with high resolution at low cost. Even if these monitors consist of more than 20 displays, one laptop is sufficient to control the content displayed on them through a regular WLAN connection. Up to now, this has been possible only with a considerable amount of hardware. Therefore, the innovative approach of the Saarbrucken computer scientists is also interesting in terms of perimeter advertising in sports stadiums or interactive displays in shops.“On such monitor walls we even can show 3D movies like Avatar,” Löffler adds. If you use shutter glasses on that occasion, all monitors have to show the image for the right and for the left eye at exactly the same time, to ensure the desired spatial impression. “We accomplish this synchronization by controlling the hardware for the graphics output,” Löffler explains.
Internally, the software uses optimized video transmission protocols to transfer the synchronized image data directly from the virtual frame buffer to the displays. In the conventional approach, the unpacked display content is transferred sixty times per second via cable for diverse standards, such as VGA, DVI or HDMI, to the monitor. Particularly on high resolution displays, numerous gigabytes per second can easily result. With the Saarbrucken computer scientists’ approach, however, only the individually changed data, additionally compressed, needs to be sent. That reduces the effort to a fraction of what it was. In this way, it’s technically possible to transfer screen images to or from the displays of mobile terminals. The researchers use this technology, for instance, to work on a way to transmit the navigation monitor of a smart phone to the electronic display of a car’s dashboard. Thus, it could enable a new type of user interface beyond the automotive world.
Thorsten Mohr | Universität des Saarlandes
UDE at the CeBIT fair: Protecting huge National Parks
07.03.2012 | Universität Duisburg-Essen
Cebit: Automated stress testing for Web 2.0 applications helps developers find programming errors
27.02.2012 | Universität des Saarlandes
Ultrafast lasers have introduced new possibilities in engraving ultrafine structures, and scientists are now also investigating how to use them to etch microstructures into thin glass. There are possible applications in analytics (lab on a chip) and especially in electronics and the consumer sector, where great interest has been shown.
This new method was born of a surprising phenomenon: irradiating glass in a particular way with an ultrafast laser has the effect of making the glass up to a...
Terahertz excitation of selected crystal vibrations leads to an effective magnetic field that drives coherent spin motion
Controlling functional properties by light is one of the grand goals in modern condensed matter physics and materials science. A new study now demonstrates how...
Researchers from the Institute for Quantum Computing (IQC) at the University of Waterloo led the development of a new extensible wiring technique capable of controlling superconducting quantum bits, representing a significant step towards to the realization of a scalable quantum computer.
"The quantum socket is a wiring method that uses three-dimensional wires based on spring-loaded pins to address individual qubits," said Jeremy Béjanin, a PhD...
In a paper in Scientific Reports, a research team at Worcester Polytechnic Institute describes a novel light-activated phenomenon that could become the basis for applications as diverse as microscopic robotic grippers and more efficient solar cells.
A research team at Worcester Polytechnic Institute (WPI) has developed a revolutionary, light-activated semiconductor nanocomposite material that can be used...
By forcefully embedding two silicon atoms in a diamond matrix, Sandia researchers have demonstrated for the first time on a single chip all the components needed to create a quantum bridge to link quantum computers together.
"People have already built small quantum computers," says Sandia researcher Ryan Camacho. "Maybe the first useful one won't be a single giant quantum computer...
25.10.2016 | Veranstaltungen
25.10.2016 | Veranstaltungen
25.10.2016 | Veranstaltungen
25.10.2016 | Verfahrenstechnologie
25.10.2016 | Energie und Elektrotechnik
25.10.2016 | Biowissenschaften Chemie