Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Cebit 2012 – Internet service prevents cable tangle in presentations at conferences and trade shows

23.02.2012
To connect a laptop to an additional monitor, projector or even to a monitor wall, a special cable was required, until now.

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.

For further information please contact:
Alexander Löffler
Phone: +49 681 85775-7743, E-Mail: alexander-loeffler@dfki.de
Gordon Bolduan, Exzellenzcluster “Multimodal Computing and Interaction“
Phone: +49 681 302-70741, E-Mail: bolduan@mmci.uni-saarland.de

Thorsten Mohr | Universität des Saarlandes
Further information:
http://www.intel-vci.uni-saarland.de/de/projekte/display-wall.html

More articles from CeBIT 2012:

nachricht UDE at the CeBIT fair: Protecting huge National Parks
07.03.2012 | Universität Duisburg-Essen

nachricht Cebit: Automated stress testing for Web 2.0 applications helps developers find programming errors
27.02.2012 | Universität des Saarlandes

All articles from CeBIT 2012 >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Electron highway inside crystal

Physicists of the University of Würzburg have made an astonishing discovery in a specific type of topological insulators. The effect is due to the structure of the materials used. The researchers have now published their work in the journal Science.

Topological insulators are currently the hot topic in physics according to the newspaper Neue Zürcher Zeitung. Only a few weeks ago, their importance was...

Im Focus: Significantly more productivity in USP lasers

In recent years, lasers with ultrashort pulses (USP) down to the femtosecond range have become established on an industrial scale. They could advance some applications with the much-lauded “cold ablation” – if that meant they would then achieve more throughput. A new generation of process engineering that will address this issue in particular will be discussed at the “4th UKP Workshop – Ultrafast Laser Technology” in April 2017.

Even back in the 1990s, scientists were comparing materials processing with nanosecond, picosecond and femtosesecond pulses. The result was surprising:...

Im Focus: Shape matters when light meets atom

Mapping the interaction of a single atom with a single photon may inform design of quantum devices

Have you ever wondered how you see the world? Vision is about photons of light, which are packets of energy, interacting with the atoms or molecules in what...

Im Focus: Novel silicon etching technique crafts 3-D gradient refractive index micro-optics

A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.

Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...

Im Focus: Quantum Particles Form Droplets

In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.

“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

IHR
JOB & KARRIERE
SERVICE
im innovations-report
in Kooperation mit academics
Veranstaltungen

Firmen- und Forschungsnetzwerk Munitect tagt am IOW

08.12.2016 | Veranstaltungen

NRW Nano-Konferenz in Münster

07.12.2016 | Veranstaltungen

Wie aus reinen Daten ein verständliches Bild entsteht

05.12.2016 | Veranstaltungen

 
VideoLinks
B2B-VideoLinks
More VideoLinks >>>
Aktuelle Beiträge

Hochgenaue Versuchsstände für dynamisch belastete Komponenten – Workshop zeigt Potenzial auf

09.12.2016 | Seminare Workshops

Ein Nano-Kreisverkehr für Licht

09.12.2016 | Physik Astronomie

Pflanzlicher Wirkstoff lässt Wimpern wachsen

09.12.2016 | Biowissenschaften Chemie