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
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Material defects in end products can quickly result in failures in many areas of industry, and have a massive impact on the safe use of their products. This is why, in the field of quality assurance, intelligent, nondestructive sensor systems play a key role. They allow testing components and parts in a rapid and cost-efficient manner without destroying the actual product or changing its surface. Experts from the Fraunhofer IZFP in Saarbrücken will be presenting two exhibits at the Blechexpo in Stuttgart from 7–10 November 2017 that allow fast, reliable, and automated characterization of materials and detection of defects (Hall 5, Booth 5306).
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Scientists from the Max Planck Institute of Quantum Optics, using high precision laser spectroscopy of atomic hydrogen, confirm the surprisingly small value of the proton radius determined from muonic hydrogen.
It was one of the breakthroughs of the year 2010: Laser spectroscopy of muonic hydrogen resulted in a value for the proton charge radius that was significantly...
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