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The researchers achieve an intra-frame compression by leveraging the redundancy inherent in typical images.įor the video transmission, the system translates the pixel information from each frame into a series of pulses where the width of each pulse represents a pixel value. In the new system, the pixels in the camera are directly connected to the antenna, which senses intensity values through the backscatter process to a nearby smartphone that can process the video.
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“This work breaks that assumption and shows that backscatter can indeed support even full HD video.”Ĭurrent streaming cameras first process and compress video, before they transmit it through Wi-Fi in a process that uses a substantial amount of power, particularly with HD videos. Allen School of Computer Science & Engineering, said in a statement. “The fundamental assumption people have made so far is that backscatter can be used only for low-data rate sensors such as temperature sensors,” co-author Shyam Gollakota, an associate professor in the UW’s Paul G. The new system uses 1,000 to 10,000 times less power than current streaming technology. This technique enables the device to share information by reflecting signals that have been transmitted to it. Researchers have devised a way to enable HD video streaming from a low-power, wearable camera to a nearby mobile device.Ī team of engineers from the University of Washington has created a new high-definition video streaming method that doesn’t utilize battery power, instead relying on a nearby mobile device, such as a smartphone to process the video with a technique called backscatter. As of August 2017, the website is ranked as the second-most popular site in the world by Alexa Internet, a web traffic analysis company As of February 2017, there are more than 400 hours of content uploaded to YouTube each minute, and one billion hours of content are watched on YouTube every day.
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The vast majority of its videos are free to view, but there are exceptions, including subscription-based premium channels, film rentals, as well as YouTube Premium, a subscription service offering ad-free access to the website and access to exclusive content made in partnership with existing users.
YouTube earns advertising revenue from Google AdSense, a program which targets ads according to site content and audience. Videos deemed potentially inappropriate are available only to registered users affirming themselves to be at least 18 years old.
Unregistered users can only watch videos on the site, while registered users are permitted to upload an unlimited number of videos and add comments to videos. Most of the content on YouTube is uploaded by individuals, but media corporations including CBS, the BBC, Vevo, and Hulu offer some of their material via YouTube as part of the YouTube partnership program.
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Available content includes video clips, TV show clips, music videos, short and documentary films, audio recordings, movie trailers, live streams, and other content such as video blogging, short original videos, and educational videos. It offers a wide variety of user-generated and corporate media videos. YouTube allows users to upload, view, rate, share, add to favorites, report, comment on videos, and subscribe to other users. Google bought the site in November 2006 for US$1.65 billion YouTube now operates as one of Google's subsidiaries. The service was created by three former PayPal employees-Chad Hurley, Steve Chen, and Jawed Karim-in February 2005. YouTube is an American video-sharing website headquartered in San Bruno, California.