UHD TV moves ahead with DVB spec approval7 July 2014
The DVB-UHDTV Phase 1 specification was approved at the 77th meeting of the DVB Steering Board, in a significant step on the road to Ultra HD TV services.
The specification includes an HEVC Profile for DVB broadcasting services that draws, from the options available with HEVC, those that will match the requirements for delivery of UHDTV Phase 1 and other formats. The specification updates ETSI TS 101 154 (Specification for the use of Video and Audio Coding in Broadcasting Applications based on the MPEG-2 Transport Stream).
The new DVB-UHDTV Phase 1 will allow images with four times the static resolution of the 1080p HDTV format, at frame rates of up to 60 images per second. Contrast will be improved by increasing the number of bits per pixel to 10-bit. From the wide range of options defined in the HEVC Main 10 profile, Level 5.1 is specified for UHD content for resolutions up to 2160p. For HD content, HEVC Main profile level 4.1 is specified for supporting resolutions up to 1080p.
“HEVC is the most recently developed compression technology and, among other uses, it is the key that will unlock UHDTV broadcasting,” said DVB Steering Board chairman, Phil Laven. “This new DVBUHDTV Phase 1 specification not only opens the door to the age of UHDTV delivery but also potentially sets the stage for Phase 2, the next level of UHDTV quality, which will be considered in upcoming DVB work,” he continued.
Also approved at the 77th meeting of the DVB Steering Board was the specification for Companion Screens and Streams, Part 2: Content Identification and Media Synchronization.