Fraunhofer HHI‘s technique for Compressed Domain Tile Aggregation with HEVC allows VR video applications with drastically reduced video bitrates and decoder requirements. Tile Based DASH Streaming with Fraunhofer HHI’s technique allows maintaining high video quality in the current viewport while streaming lower resolution outside the viewport. The approach can adapt the video bitstream to the current user viewport on-the-fly without heavy transcoding or storage of a large number of pre-rendered viewports on the server. At the CES fair 2017 in Las Vegas, Fraunhofer HHI will show this technology at Booth 20944, South Hall 1.
Tile Based DASH Streaming for Virtual Reality with HEVC – Enabler for high quality 360 degree video from Fraunhofer HHI at CES
Fraunhofer HHI‘s technique for Compressed Domain Tile Aggregation with HEVC allows VR video applications with drastically reduced video bitrates and decoder requirements. Tile Based DASH Streaming with Fraunhofer HHI’s technique allows maintaining high video quality in the current viewport while streaming lower resolution outside the viewport.
The approach can adapt the video bitstream to the current user viewport on-the-fly without heavy transcoding or storage of a large number of pre-rendered viewports on the server. Using Tile Based DASH Streaming, individual tiles are offered to the client which selects a configuration suitable to his viewport, throughput budget and decoder capabilities. At the CES fair 2017 in Las Vegas, Fraunhofer HHI will show this technology at Booth 20944, South Hall 1.
Ultra-high-resolution within the user viewport is required to achieve full immersion in VR video applications. Covering the full 360 degree video would easily lead to multiple times UHD resolution. Such large amount of data poses a major challenge to the whole chain of state-of-the-art video streaming.
The throughput required for streaming of 360 degree video over the public Internet cannot be provided for many users. Furthermore, most VR relevant devices such as mobile phones contain hardware video decoders that are tailored to conventional FullHD and 4K resolution services. Due to these limitations, a new approach for adaptivity of bitrate and resolution in VR video applications is required.
Fraunhofer HHI’s technique for Compressed Domain Tile Aggregation with HEVC overcomes the challenges of ultra-high resolution content on limited decoder capabilities. In a traditional service design, per-user or per-viewport orientation streams would be offered which does not scale well and comes at significant storage and encoding cost.
Using the technique of Fraunhofer HHI, a tailored bitstream for each user can be easily generated on-the-fly without intensive pro-cessing on the server or client side. Video content outside the users’ current viewport is transmitted in low quality or resolution, which allows a more efficient throughput and decoder utilization. Furthermore, Fraunhofer HHI‘s Compressed Domain Tile Aggregation solution enables usage of a single video decoder on end devices.
Complete and market ready streaming solutions can be implemented based on well-established standard families such as MPEG ISO Base Media File Format and MPEG DASH which are fully compatible to Fraunhofer HHI‘s Com-pressed Domain Tile Aggregation technique.
Anne Rommel | Fraunhofer-Institut für Nachrichtentechnik Heinrich-Hertz-Institut
High Number of Science Enthusiasts in Switzerland
05.02.2018 | Universität Zürich
Between filter bubbles, uneven visibility and transnationality
06.12.2017 | Schweizerischer Nationalfonds SNF
At the Hannover Messe 2018, the Bundesanstalt für Materialforschung und-prüfung (BAM) will show how, in the future, astronauts could produce their own tools or spare parts in zero gravity using 3D printing. This will reduce, weight and transport costs for space missions. Visitors can experience the innovative additive manufacturing process live at the fair.
Powder-based additive manufacturing in zero gravity is the name of the project in which a component is produced by applying metallic powder layers and then...
Physicists at the Laboratory for Attosecond Physics, which is jointly run by Ludwig-Maximilians-Universität and the Max Planck Institute of Quantum Optics, have developed a high-power laser system that generates ultrashort pulses of light covering a large share of the mid-infrared spectrum. The researchers envisage a wide range of applications for the technology – in the early diagnosis of cancer, for instance.
Molecules are the building blocks of life. Like all other organisms, we are made of them. They control our biorhythm, and they can also reflect our state of...
University of Connecticut researchers have created a biodegradable composite made of silk fibers that can be used to repair broken load-bearing bones without the complications sometimes presented by other materials.
Repairing major load-bearing bones such as those in the leg can be a long and uncomfortable process.
Study published in the journal ACS Applied Materials & Interfaces is the outcome of an international effort that included teams from Dresden and Berlin in Germany, and the US.
Scientists at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) together with colleagues from the Helmholtz-Zentrum Berlin (HZB) and the University of Virginia...
Novel highly efficient and brilliant gamma-ray source: Based on model calculations, physicists of the Max PIanck Institute for Nuclear Physics in Heidelberg propose a novel method for an efficient high-brilliance gamma-ray source. A giant collimated gamma-ray pulse is generated from the interaction of a dense ultra-relativistic electron beam with a thin solid conductor. Energetic gamma-rays are copiously produced as the electron beam splits into filaments while propagating across the conductor. The resulting gamma-ray energy and flux enable novel experiments in nuclear and fundamental physics.
The typical wavelength of light interacting with an object of the microcosm scales with the size of this object. For atoms, this ranges from visible light to...
13.04.2018 | Event News
12.04.2018 | Event News
09.04.2018 | Event News
24.04.2018 | Information Technology
24.04.2018 | Earth Sciences
24.04.2018 | Life Sciences