Featured Research

from universities, journals, and other organizations

'Watermarks' Can Identify Pirated Internet Videos

Date:
October 10, 2007
Source:
Fraunhofer-Gesellschaft
Summary:
For centuries, watermarks have protected written documents from forgery. Now their digital brothers are to prevent videos from being released in the Internet before their television premieres. Electronic watermarks are used to locate leaks.

Special protection 'watermarks' have been developed to prevent television programs from being broadcast over the Internet before their official TV premieres.
Credit: Image courtesy of Fraunhofer-Gesellschaft

For centuries, watermarks have protected written documents from forgery. Now their digital brothers are to prevent videos from being released in the Internet before their television premieres. Electronic watermarks are used to locate leaks.

People use their cell phones much more actively than their television or radio sets. In order to make mobile television more attractive in the future, program makers intend to provide interactive content in addition to simple viewing. Conventional programs are given special processing for this purpose. Before airing their TV material, broadcasters send it to external service providers who process it and incorporate additional information.

Special protection is needed to ensure that programs will not be published on the Internet before their official TV premieres. In the porTiVity project, the Fraunhofer Institute for Secure Information Technology SIT has developed just such a form of protection: a robust video watermark that permanently labels TV material without hindering the processing work. If such a protected program appears prematurely on the Internet, the broadcasters can use the watermark to locate the leak in the production chain.

“We know from our experience of earlier projects that viewers who receive television via cell phone or PDA would like to become actively involved in the programs,” says Patrick Wolf of the Fraunhofer SIT. The researchers in the porTiVity project are therefore developing a rich media iTV system for mobile television which allows viewers to directly select objects in the picture. “During a football match, for example, viewers could click on individual players to view their goal and assist statistics,” says Wolf. “In this case, the viewer receives additional, optional content. However, program makers can also use the additional information for interactive prize draws or edutainment formats.”

In addition, porTIVity provides an authoring system which allows mobile TV producers to track moving objects. These marked objects can be linked to additional information which appears when the user clicks on them. The additional information is packed with the video files in Material eXchange Format (MXF) and delivered as rich media content to the broadcasting center, where the signal is processed and aired. What ultimately arrives at the mobile receiver is a special MPEG-4 video containing both the main program and the interactive elements.


Story Source:

The above story is based on materials provided by Fraunhofer-Gesellschaft. Note: Materials may be edited for content and length.


Cite This Page:

Fraunhofer-Gesellschaft. "'Watermarks' Can Identify Pirated Internet Videos." ScienceDaily. ScienceDaily, 10 October 2007. <www.sciencedaily.com/releases/2007/10/071007205503.htm>.
Fraunhofer-Gesellschaft. (2007, October 10). 'Watermarks' Can Identify Pirated Internet Videos. ScienceDaily. Retrieved July 22, 2014 from www.sciencedaily.com/releases/2007/10/071007205503.htm
Fraunhofer-Gesellschaft. "'Watermarks' Can Identify Pirated Internet Videos." ScienceDaily. www.sciencedaily.com/releases/2007/10/071007205503.htm (accessed July 22, 2014).

Share This




More Matter & Energy News

Tuesday, July 22, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Government Approves East Coast Oil Exploration

Government Approves East Coast Oil Exploration

AP (July 18, 2014) The Obama administration approved the use of sonic cannons to discover deposits under the ocean floor by shooting sound waves 100 times louder than a jet engine through waters shared by endangered whales and turtles. (July 18) Video provided by AP
Powered by NewsLook.com
Sunken German U-Boat Clearly Visible For First Time

Sunken German U-Boat Clearly Visible For First Time

Newsy (July 18, 2014) The wreckage of the German submarine U-166 has become clearly visible for the first time since it was discovered in 2001. Video provided by Newsy
Powered by NewsLook.com
Obama: U.S. Must Have "smartest Airports, Best Power Grid"

Obama: U.S. Must Have "smartest Airports, Best Power Grid"

Reuters - US Online Video (July 17, 2014) President Barak Obama stopped by at a lunch counter in Delaware before making remarks about boosting the nation's infrastructure. Mana Rabiee reports. Video provided by Reuters
Powered by NewsLook.com
Crude Oil Prices Bounce Back After Falling Below $100 a Barrel

Crude Oil Prices Bounce Back After Falling Below $100 a Barrel

TheStreet (July 16, 2014) Oil Futures are bouncing back after tumbling below $100 a barrel for the first time since May yesterday. Jeff Grossman is the president of BRG Brokerage and trades at the NYMEX. Grossman tells TheStreet the Middle East is always a concern for oil traders. Oil prices were pushed down in recent weeks on Libya increasing its production. Supply disruptions in Iraq fading also contributed to prices falling. News from China's economic front showing a growth for the second quarter also calmed fears on its slowdown. Jeff Grossman talks to TheStreet's Susannah Lee on this and more on the Energy Department's Energy Information Administration (EIA) report. Video provided by TheStreet
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins