Saturday, April 19, 2014
Search
  
Submit your own News for
inclusion in our Site.
Click here...
Breaking News
HTC Hired Ex-Samsung Marketing Officer
Xbox One Wolrdwide Sales Cross 5 million
Samsung Works With GLOBALFOUNDRIES On 14 nm FinFET Offering
Facebook To Find Nearby Friends
Console Sales Lift AMD's First Quarter Results
LG Expands 'Second Screen' TV Ecosystem With Open-Source SDK
Amazon Announces Kindle Service For Samsung Devices
Nokia Halts Sales Of Lumia 2520 Tablet
Active Discussions
help questions structure DVDR
Made video, won't play back easily
Questions durability monitor LCD
Questions fungus CD/DVD Media, Some expert engineer in optical media can help me?
CD, DVD and Blu-ray burning for Android in development
IBM supercharges Power servers with graphics chips
Werner Vogels: four cloud computing trends for 2014
Video editing software.
 Home > News > Consumer Electronics > Netflix...
Last 7 Days News : SU MO TU WE TH FR SA All News

Monday, November 04, 2013
Netflix Tests 4K Video Streaming


TV and film streaming service Netflix has started testing "ultra high definition" video, but broadband speeds seems to not be fast enough to cope with ultra high definition streaming.

Also known as 4K the technology offers four times the amount of detail as 1080p high-definition content.

Netflix said it plans to offer the first titles in 4K to customers next year.

In January, Netflix launched what it called "Super HD," first to ISP partners which used its dedicated network, Netflix Open Connect, followed by any ISP which could support it. Super HD applies less compression to the 1080p image. Super HD requires bandwidth between 5 Mbps and 7 Mbps. But the bandwidth requirements for 4K content are much higher.

4K Ultra High Definition TV (UHDTV) format - also known as Quad HD or UHD-1 is derived from Digital Cinema's 4K (4096x2160 pixel) format, but for TV the pixel count is reduced to 3840x2160, this being exactly four times that of HDTV - hence 'Quad HD.'

4K content is progressively scanned. 3840x2160 resolution progressively scanned at 60 frames per second (60fps) generates a native data rate of 12 gigabits a second (12Gbps), 8 times the 1.5Gbps required for 1080i/60.

But here comes a new video compression standard and successor to H.264/AVC - HEVC (High Efficiency Video Coding), also known as H.265. This can reduce data rates by a further 30-50% which, when combined with the increased efficiency achieved when coding higher resolutions and progressive rather than interlaced pictures, means data rates after compression do not rise by the same amount as their native equivalent. It has been suggested that an 8x increase in native data rate could be as low as 2x after compression. But still, 50/60p may not be sufficient for football and other fast-action content, and a 100/120p may be more appropriate.

With all these in mind, the minimum broadband speed for 4K TV service would be not less than 100Mbps.




Previous
Next
Google+ Offers Virtual Field Trips To Students        All News        HP to Offer Both Itanium- and x86-based Nonstop servers
TEAC Releases New 'Fully-Balanced' Stereo Amplifier     Consumer Electronics News      Electronic Sell-Through Climbs in the Third Quarter, But Overall Consumer Spending Remained Flat

Get RSS feed Easy Print E-Mail this Message

Related News
Sony To Cover 2014 FIFA World Cup In 4K
Samsung Releases New 28-inch, 4K Monitor For $700
4K2K TV Penetration Rate to Reach 5.6 Percent in 2014
Taiwanese Panel Manufacturers to Lead 4K TV Display Shipments
Netflix To Use Comcast For Faster Broadband Access
Sony's Latest Software Introduces 4K-Support
2014 4K TV Shipments to Rise In China
Samsung, LG to unveil 105-inch curved TVs At CES
LG To Introduce 34-inch 21:9 UltraWide Monitors Lineup At CES
Dell Releases New 24-inch and 32-inch UltraHD 4K Monitors
Netflix On TV Gets A Makeover
Japan Display Develops 12.1-inch 4K2K TFT LCD Module

Most Popular News
 
Home | News | All News | Reviews | Articles | Guides | Download | Expert Area | Forum | Site Info
Site best viewed at 1024x768+ - CDRINFO.COM 1998-2014 - All rights reserved -
Privacy policy - Contact Us .