Navigation Links
IBC 2012: New standard HEVC encodes films more efficiently
Date:8/23/2012

The opening ceremonies for the Olympic Games captivated countless viewers all over the world in front of their televisions, astounding them with a gigantic show. Relatively few people were able to have a live experience of the spectacle at the London stadium. Still, some of the fans watching the show felt as if they were there live, even though they were only sitting in front of a large cinema screen. That's because a few movie theaters showed the opening ceremonies in 8K-resolution, which corresponds to 33 megapixels.

The resolution on home televisions will soon be enhanced even further, conveying the feeling of being right in the middle of the action, instead of just watching from the sidelines. Indeed, the successor to the full HD television set is already penetrating the market: the 4K display, also called 2160p format. These televisions have four times as many pixels as the TVs in our living rooms today. Still, the continuously growing number of pixels must also be fed with the matching content, so that the capabilities of the high resolution television can also be utilized. But to do so has always been tied to immense costs, until recently, and therefore was only considered for major events, like the Olympic Games.

The previous standard for encoding data and sending it from the broadcaster to the home television set is known as H.264/MPEG-4 AVC. Theoretically, it has certainly been up to handling the mass of data; however practically, the broadcasting of higher resolution entails substantial costs: because an additional channel is needed for television broadcasts, and for Internet transmission, the server needs a wider bandwidth. A majority of the reputable electronics manufacturers have now joined forces to develop a new broadcasting standard together: HEVC, short for "High Efficiency Video Coding." The labs at the Fraunhofer Heinrich-Hertz-Institute HHI in Berlin, which played a critical role in the engineering of the H.264 predecessor standard, also made a substantial contribution to this new standard.

Twice as efficient as H.264

The advantage of HEVC: The standard requires half the bandwidth for high quality video transmission. But how is it being done? "Parts of H.264 were subsumed and optimized," explains Dr. Thomas Schierl, group manager of multimedia communications at HHI. "One example is the block size: whereas H.264 subdivides the transmission image into blocks of 16 by 16 pixels, HEVC instead carves the image into blocks of varying sizes with up to 64 by 64 pixels. These larger blocks can be encoded considerably more efficiently." If an object is seen in the image that moves to the side, then this movement occurs smoothly. The standards establish the movement data for each block - data that is ordinarily transmitted once per block. Because the blocks in HEVC are substantially larger than in H.264, correspondingly less movement data are needed. Compared to H.264, since the computational effort for the higher coding efficiency increases sharply to encode or decode the images, HEVC in the standard design allows computer units to work parallel with each other. Either the image is separated out into several parts, known as tiles, whereupon each processor works on one of them, or in the wave front method, where the processors each handle one block of lines in the image. These methods allow encoder manufacturers to get implementations and products to market rapidly.

The development is scheduled for completion in January 2013. Thereafter, new televisions, smartphones and PC units will presumably contain decoders that convert data encoded with HEVC into high-resolution television images. The HEVC standard for 3D movies should follow in one to two years. HEVC will be presented at the IBC in Amsterdam from September 7-11, 2012 in Hall 8, Booth B80. Visitors can watch a full HD film on an HD television being converted live by the HEVC decoder into high-resolution television pictures. They can change movies, pause playback, fast forward and also rewind.

Standard for video telephony and video streaming as well

The new standard will deliver benefits to video telephony as well. It too, was hitherto largely based on H.264. With HEVC, the image quality can be increased substantially at the same data rate. Likewise, the transmission can be adapted for web video-streaming. MPEG-DASH, a transport format for multimedia streaming, currently enables viewers to watch judder-free videos via the Internet. Today it allows the transport of H.264-encoded contents as well as other standards. The researchers are planning to extend DASH by April 2013 in such a manner that it can also transmit HEVC-encoded videos.


'/>"/>
Contact: Thomas Schierl
thomas.schierl@hhi.fraunhofer.de
49-303-100-2227
Fraunhofer-Gesellschaft
Source:Eurekalert

Related biology technology :

1. Founder of National Childrens Leukemia Unveiled Non-Embryonic Stem Cell Treatment Promising Cure for Cancer at GIL 2012: Europe
2. Elsevier / Gold Standard Announces New Drug Class Overviews for Clinical Pharmacology
3. Happtique Releases Draft App Certification Program Standards For Public Comment
4. A milestone in nanoparticle research: Nanoparticle test handbook sets the standards
5. CSL Behring Data Shows 4-Factor Prothrombin Complex Concentrate Is As Effective and a More Rapid Treatment for Vitamin K Antagonist Reversal Than Current Standard of Care
6. Quality Standards Established for Competition to Identify Best Researchers in the US
7. Frost & Sullivan Recognizes iCubate for Developing the New Gold Standard Instrument in the PCR Market
8. Elsevier/Gold Standard Exclusive Publisher of New Predictive Drug Price Type
9. Clinical technique sets new standard for speed in battle to prevent pandemic infection
10. ResearchMoz: Logic Integrated Circuit (IC) Market to 2020 - Programmable Logic Devices (PLD) and Application Specific Standard Product (ASSP) Dominate with a 78% Market Share
11. iBio, Inc. Submits Plan to Satisfy NYSE Amex Continued Listing Standards
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/23/2016)... /PRNewswire/ - FACIT has announced the creation of ... company, Propellon Therapeutics Inc. ("Propellon" or "the Company"), ... portfolio of first-in-class WDR5 inhibitors for the treatment ... represent an exciting class of therapies, possessing the ... cancer patients. Substantial advances have been achieved with ...
(Date:6/23/2016)... , June, 23, 2016  The Biodesign Challenge (BDC), ... new ways to harness living systems and biotechnology, announced ... (MoMA) in New York City . ... participating students, showcased projects at MoMA,s Celeste Bartos Theater ... Antonelli , MoMA,s senior curator of architecture and design, ...
(Date:6/23/2016)... June 23, 2016 Apellis Pharmaceuticals, Inc. ... clinical trials of its complement C3 inhibitor, APL-2. ... multiple ascending dose studies designed to assess the ... subcutaneous injection in healthy adult volunteers. ... as a single dose (ranging from 45 to ...
(Date:6/23/2016)... Prairie, WI (PRWEB) , ... June 23, 2016 ... ... consultancy focused on quality, regulatory and technical consulting, provides a free webinar ... is presented on July 13, 2016 at 12pm CT at no charge. , ...
Breaking Biology Technology:
(Date:4/26/2016)... LONDON , April 26, 2016 ... a product subsidiary of Infosys (NYSE: ... to integrate the Onegini mobile security platform with ... http://photos.prnewswire.com/prnh/20151104/283829LOGO ) The integration will ... to access and transact across channels. Using this ...
(Date:4/19/2016)... -- The new GEZE SecuLogic access control ... system solution for all door components. It can be ... interface with integration authorization management system, and thus fulfills ... dimensions of the access control and the optimum integration ... considerable freedom of design with regard to the doors. ...
(Date:4/15/2016)... -- Research and Markets has announced the ...  report to their offering.  ,      ... gait biometrics market is expected to grow at ... Gait analysis generates multiple variables such ... compute factors that are not or cannot be ...
Breaking Biology News(10 mins):