Intelligent Compound Content Management
There is a broad acceptance in the content, content distribution and consumer electronics industries that the addition of High Dynamic Range (HDR) and Wider Colour Gamut (WCG) will be the enabler for mass market sales of the next generation Ultra-HD displays and equipment.
Two trade associations, the UHD Alliance and the UHD Forum representing members from the entire ecosystem have started to promote HDR/WCG images to the home. The Blu-ray Disk Association has also announced a new generation of UltraHD discs and players that incorporate HDR/WCG technologies.
Nonetheless for many years hence, legacy receivers, including tablet devices, will comprise the majority of the receiver installed base. To ensure a smooth transition between today’s television standards and tomorrow’s, a new transmission system should offer backwards compatibility with today’s television standards whilst also providing full quality for the next generation HDR/WCG televisions.
Several proposals have been made in order to achieve such a transition, but in each case this has involved compromising either the quality of today’s television images or the quality of the future HDR/WCG images or both.
A Compound Content transmission system would allow two or more qualities or grades of content to be sent simultaneously and permits the intelligent reconstruction of one or more of these qualities or grades in the receiver without compromising the intent of the other.
Any High Dynamic Range (HDR) / Wider Colour Gamut (WCG) transmission solution must take into account the diverse needs of the content creation industry, the work currently being undertaken in the ITU-R and SMPTE regarding new HDR/WCG production technologies, the complexity of any solution in silicon and the quality of the signals to be delivered through DVB or ATSC based systems to both legacy devices and HDR/WCG devices.
Industry Specification Group (ISG) CCM defines and specifies the additional functionality required in consumer devices to enable the accurate recreation of both today’s television signal and the HDR/WCG signal from content created using the production techniques under development in SMPTE.
Given the requirement to achieve backwards compatibility with existing receivers, some additional technology will be required in the next generation of HDR/WCG receivers to accurately recreate the HDR/WCG signal. This group will specify the technology needed and ensure that the creative intent embedded into both legacy and HDR/WCG content is preserved and propagated through the appropriate interfaces.
When will CCM deliver?
The planned date for completion of the work of the ISG CCM is about 9 months from the kick-off meeting. This timescale is required to meet market needs in this fast moving area. Due to significant industry interest concerning HDR/WCG systems, the ISG CCM intends to provide information on both technology and progress to significant external industry standards bodies such as ATSC and DVB.
Liaisons are envisaged with the following entities:
- ETSI JTC Broadcast
- EBU Beyond HD Group
- DVB TM-AVC
- ISO/IEC JTC1 SC29 WG12