Lounging on a sofa while watching a 3D movie is an exquisite pleasure for many film fans. Be that as it may, those nettlesome 3D glasses might diminish the fun somewhat. That’s why television manufacturers are working on displays that can recreate the spellbinding magic of three-dimensional television images – without the glasses.
Though prototypes of these TV screens already exist, consumers will not have to wait much longer for the market introduction of these autostereoscopic displays. Neverthe-less, the content might be a bit problematic: The 3D movies currently available on Blu-ray are based on two different perspectives, i.e., two images, one for each eye. However, autostereoscopic displays need five to ten views of the same scene (depending on the type).
In the future, the number will probably be even more. This is because these displays have to present a three-dimensional image in such a manner that it can be seen from different angles – indeed, there is more than one place to sit on a sofa, and you should be able to get the same three dimensional impressions from any position.
Researchers at Fraunhofer Institute for Telecommunications, Heinrich-Hertz Institute, HHI in Berlin recently developed a technology that converts a Blu-ray’s existing 3D content in a manner that enables them to be shown on autostereoscopic displays. “We take the existing two images and generate a depth map – that is to say, a map that assigns a specific distance from the camera to each object,” says Christian Riechert, research fellow at HHI. “From there we compute any of several intermediate views by applying depth image-based rendering techniques. And here’s the really neat thing:
The process operates on a fully automated basis, and in real time.” Previous systems were only capable of generating such depth maps at a dramatically slower pace; sometimes they even required manual adaption. Real-time conversion, by contrast, is like simultaneous interpretation: The viewer inserts a 3D Blu-ray disc, gets comfortable in front of the TV screen and enjoys the movie – without the glasses. Meanwhile, a hardware component estimates the depth map in the background and generates the requisite views. The viewer is aware of nothing: He or she can fast forward or rewind the movie, start it, stop it – and all with the same outstanding quality. The flickering that could appear on the edges of objects – something that happens due to imprecise estimations – is imperceptible here.
The researchers have already finished the software that converts these data. In the next step, the scientists, working in collaboration with industry partners, intend to port it onto a hardware product so that it can be integrated into televisions. Nevertheless, it will still take at least another calendar year before the technology hits department store shelves. At the IFA trade show in Berlin from August 31 to September 5 the technology can be tested: An autostereoscopic 3D screen will be set up right in front of a sofa corner at Booth 10 in Hall 11.1. Visitors can select from the various 3D Blu-ray discs, and as the disc is played, the system will convert it live: the visitors just relax and enjoy the movie – without the glasses.
Christian Riechert | Fraunhofer Research News
COMPAMED 2016 connected medical devices and people
23.11.2016 | IVAM Fachverband für Mikrotechnik
Successfully transferring Industrie 4.0 into reality
21.11.2016 | Deutsches Forschungszentrum für Künstliche Intelligenz GmbH, DFKI
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...
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...
The Max Planck Institute for Physics (MPP) is opening up a new research field. A workshop from November 21 - 22, 2016 will mark the start of activities for an innovative axion experiment. Axions are still only purely hypothetical particles. Their detection could solve two fundamental problems in particle physics: What dark matter consists of and why it has not yet been possible to directly observe a CP violation for the strong interaction.
The “MADMAX” project is the MPP’s commitment to axion research. Axions are so far only a theoretical prediction and are difficult to detect: on the one hand,...
Broadband rotational spectroscopy unravels structural reshaping of isolated molecules in the gas phase to accommodate water
In two recent publications in the Journal of Chemical Physics and in the Journal of Physical Chemistry Letters, researchers around Melanie Schnell from the Max...
The efficiency of power electronic systems is not solely dependent on electrical efficiency but also on weight, for example, in mobile systems. When the weight of relevant components and devices in airplanes, for instance, is reduced, fuel savings can be achieved and correspondingly greenhouse gas emissions decreased. New materials and components based on gallium nitride (GaN) can help to reduce weight and increase the efficiency. With these new materials, power electronic switches can be operated at higher switching frequency, resulting in higher power density and lower material costs.
Researchers at the Fraunhofer Institute for Solar Energy Systems ISE together with partners have investigated how these materials can be used to make power...
16.11.2016 | Event News
01.11.2016 | Event News
14.10.2016 | Event News
02.12.2016 | Medical Engineering
02.12.2016 | Agricultural and Forestry Science
02.12.2016 | Physics and Astronomy