Will Law, Chief Architect, Media Division, Akamai 4K and UHD Will Law, Chief Architect, Media Division, Akamai

4K ≠ UHD

“UHD is the art and science of reproducing reality” Eric Grab - Neulion

Ultra High Definition video represents an improvement in quality in 7 different areas Size Color HDR FPS COD ART Sound UHD Spatial resolution Dynamic range Component coding Sound Systems Color Range Temporal resolution Compression artifacts

Size

The NHK STRL results – how far do you sit from your TV ? 10ft back from your TV, you need a 116 inch TV to appreciate UHD resolution

Wider Color Gamut

Componment Coding – Color Depth 10-bit color 1,024 shades of primary 1,073,741,824 total colors 8-bit color 256 shades of primary 16,777,216 total colors

Dynamic Range

HIGH DYNAMIC RANGE Dynamic range in MPEG is defined as the ratio between the minimum and maximum luminance of the video signal HDR video intents to offer a wider dynamic range, closer to the capacities of the human vision

Frame rate Higher frame rate increases perceived quality

Higher frame rate has other quality benefits Large displays – viewers susceptible to flicker in wide FOV The balance between sharpness and judder – a higher frame rate allows greater production shot freedom. OPEN motion blur OPEN strobing Solution – higher fps OPEN

Compression Artifacts HEVC makes UHD transmission possible at internet rates Coding tree blocks – Credit: Fabio Sonnati

Sound – nothing makes a picture look better than good sound! A movement towards interactive, scene-based, spatial and object based encoding

DVB released UHD-1 Phase 1 specs THE DVB UHD ROADMAP DVB released UHD-1 Phase 1 specs Source : Thierry Fautier (Harmonic)

THE UHD ECOSYSTEM COMPLEXITY Five different working groups for HDR » EBU / DVB » ITU / DOLBY / BBC / PHILIPS / TECHNICOLOR » SMPTE » MPEG » BLU-RAY UHD Alliance vs UltraHD Forum Five different working groups for HDR : EBU and DVB working on recommendations for live broadcast ITU collaboration with Dolby, BBC, Philips and Technicolor SMPTE specifications for production MPEG works on HEVC evolution for HDR, expected results in June Blu-Ray finalizing HDR specs Netflix and Warner annonced plans to leverage HDR

4K TVS Second generation TVs start to ship Eight major actors U.S. market situation & forecast » 2014: 1% of U.S. homes in 4K* » 2015: 4** to 6* millions shipments » 2016: 10% of U.S. homes in 4K* » 2020: 50% of U.S. homes in 4K* Europe’s year-end 2014 UHD ownership situation*** » Germany 1%, France & Spain 3%, UK 4% Sources : * Strategy Analytics 4K TVs Report 2015 ** CEA’s U.S. Consumer Electronics Sales and Forecast 2015 *** SES 2014 Satellite Monitor research Unit shipments of 4K UHD displays are projected to reach four million in 2015 (a 208% increase) in the US Source : CEA’s U.S. Consumer Electronics Sales and Forecast Samsung UN65HU9000 65-Inch 4K Ultra HD TV

Can you stream UHD over the internet? Akamai MediaClient Hybrid TCP/UDP demo

QUESTIONS? THANK YOU Content credit to Nicolas Weil – Akamai David Wood - Deputy Technical Director, EBU. QUESTIONS?