This is a technique that can be used by reporters in remote locations to give live reports and by everyday people, regardless of their location. The technique is so powerful that it is possible to use video with HDTV-quality and transmit it over the regular cellular phone network.
His research regards video and how you can compress the images so that they can be transmitted over any kind of connection while still maintaining high image quality.
A large part of our communication is non-verbal, for example the facial expressions and body language of the person we are communicating with. When we can't se each other a large part of what we are mediating is lost, explains Ulrik Söderström.
His technique makes use of video areas that are classified as important, for example the mouth and the eyes. From changes in these areas and by using a model of the person's face Ulrik can reconstruct a movie in a way that the compressed video needs very little space and at the same time retains high image quality. This means that the sender isn't dependent on fast connections and can use any kind of network for producing good image quality. Video can be transmitted at as low bitrate as 5 kbps, which can be compared to audio via the regular cellular phone network that needs almost 10 kbps.Ulrik Söderström defends his thesis Very Low Bitrate Video Communication: A Principal Component Analysis Approach on Friday the 26th of September.
Karin Wikman | idw
New AI system manages road infrastructure via Google Street View
19.06.2019 | RMIT University
'Alexa, monitor my heart': Researchers develop first contactless cardiac arrest AI system for smart speakers
19.06.2019 | University of Washington
From June 25th to 27th 2019, the Fraunhofer Institute for Digital Media Technology IDMT in Ilmenau (Germany) will be presenting a new solution for acoustic quality inspection allowing contact-free, non-destructive testing of manufactured parts and components. The method which has reached Technology Readiness Level 6 already, is currently being successfully tested in practical use together with a number of industrial partners.
Reducing machine downtime, manufacturing defects, and excessive scrap
The quality of additively manufactured components depends not only on the manufacturing process, but also on the inline process control. The process control ensures a reliable coating process because it detects deviations from the target geometry immediately. At LASER World of PHOTONICS 2019, the Fraunhofer Institute for Laser Technology ILT will be demonstrating how well bi-directional sensor technology can already be used for Laser Material Deposition (LMD) in combination with commercial optics at booth A2.431.
Fraunhofer ILT has been developing optical sensor technology specifically for production measurement technology for around 10 years. In particular, its »bd-1«...
The well-known representation of chemical elements is just one example of how objects can be arranged and classified
The periodic table of elements that most chemistry books depict is only one special case. This tabular overview of the chemical elements, which goes back to...
Light can be used not only to measure materials’ properties, but also to change them. Especially interesting are those cases in which the function of a material can be modified, such as its ability to conduct electricity or to store information in its magnetic state. A team led by Andrea Cavalleri from the Max Planck Institute for the Structure and Dynamics of Matter in Hamburg used terahertz frequency light pulses to transform a non-ferroelectric material into a ferroelectric one.
Ferroelectricity is a state in which the constituent lattice “looks” in one specific direction, forming a macroscopic electrical polarisation. The ability to...
Researchers at TU Graz calculate the most accurate gravity field determination of the Earth using 1.16 billion satellite measurements. This yields valuable knowledge for climate research.
The Earth’s gravity fluctuates from place to place. Geodesists use this phenomenon to observe geodynamic and climatological processes. Using...
24.06.2019 | Event News
29.04.2019 | Event News
17.04.2019 | Event News
25.06.2019 | Architecture and Construction
25.06.2019 | Life Sciences
25.06.2019 | Power and Electrical Engineering