ANSI SCTE 247:2018 pdf download.High Dynamic Range (HDR) Video:System Requirements for Cable Phase 1 – Initial Deployment.
This document represents a collaborative collection of use cases and requirements that the SCTE•ISBE Digital Video Subcommittee (I)VS) members believe will be a first step for a comprehensive set of Standards, Recommended Practices and other documents that define a next-generation system of high dynamic range video for cable operators.
It is important to note that next-generation video and audio systems are part of an entire ecosystem from capture to production through distribution to consumer consumption. There are several trade organizations and standards development organizations (SDO) that are actively working on, and have oversight over, aspects of’ those technical details. Notably:
• High dynamic range video system parameters for production have been developed internationally and are documented in ITU-R Recommendation BT.2 100 “Image parameter values for high dynamic range television for use in production and international programme exchange.” Two different high dynamic range systems are included: a display-referred perceptual quantization (PQ) system and a scene-referred hybrid log gamma (HLG) system.
• The parameters for delivery of IIDR video across the uncompressed consumer electronics interface are specified in CTA 861-G. [29]
The use of these standards by cable operators’ ecosystem partners necessitates considerations about interoperability and technical interfaces among content creators, programmers, broadcasters and cable operators of varying size and technical infrastructure. Cable content shall interoperate smoothly with consumer electronics devices. These format discussions have both technical and business ramifications. This document does not intend to codify those specifications. However, for clarity and information, those ecosystem components may be described herein.
1.4. Benefits
Generally, these requirements are in tabular form. The requirements describe the functional and technical needs for the successful design and selection of a next-generation video system.
1.5. Intended Audience
This document is intended for system proponents, design and development engineers as well as cable operators. Product feature and. potentially, marketing groups may use this document to ensure overall needs are addressed.
1.6. Areas for Further Investigation or to be Added in Future Versions
This requirements document, while initially static, tries to take a snapshot of a dynamic area of technology. Next-generation technologies described herein will lead to standards, specifications and/or recommended practices for an end-to-end cable infrastructure. They will determine interfaces and points of interconnect with other system elements such as program providers and consumer electronic devices used by consumers — some or all of which may evolve over time.ANSI SCTE 247 pdf download.