Beyond HEVC: ‘Call for Evidence’ supporting the case for next-generation video codec

ITU-T Study Group 16 (SG16) and the ISO/IEC Moving Pictures Expert Group (MPEG) are inviting experts to submit evidence supporting the case for a future video coding standard beyond today’s ‘High Efficiency Video Coding’ (HEVC, published as ITU-T H.265 | ISO/IEC 23008-2).

Video is the main driver of bandwidth use, accounting for over 60 per cent of data traffic. The majority of this video is coded using international standards developed in collaboration by SG16 and MPEG.

Double the video compression power by 2020

The ‘Preliminary Joint Call for Evidence on Video Compression with Capability beyond HEVC’ is in search of advances in video coding with potential to drive the development of a standard with double the video compression capability of HEVC.

Should the ‘Call for Evidence’ support a strong case for the development of a future video coding standard, SG16 and MPEG will issue a ‘Call for Proposals’ to fuel the new standardization project, targeting the completion of this project by late 2020.

The SG16-MPEG Joint Video Exploration Team (JVET) is studying the feasibility of the project and evaluating candidate technology designs. JVET is reporting roughly 30 per cent improvement in compression capability relative to HEVC with its preliminary ‘Joint Exploration Model’, with the qualification that this improvement comes with high computational complexity. This work is considering a wide variety of video source content, including new types of content such as high dynamic range video and virtual-reality/360° omnidirectional video.

The preliminary ‘Call for Evidence’ will be followed by a final ‘Call for Evidence’ on 7 April 2017. Responses to these calls will be evaluated by a meeting of JVET in Turin, Italy, 14-21 July 2017.

Learn more about JVET’s ambitions in an ITU interview with Microsoft’s Gary Sullivan, Rapporteur for Visual Coding in SG16.

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