CONGRESSO SET 2016 Painel UHD - ATEME 31 De Agosto Kinetoscope

Transforming Video Delivery

CONGRESSO SET 2016 Painel UHD - ATEME 31 de Agosto Kinetoscope

1897 1951

12 DC 1949 1997

5 ATEME © 1991-2016. Confidential & Proprietary HDR10 – What? • HDR10 – Collection of Technologies and Specifications • HEVC Main 10 Profile • Color Sub-sampling: 4:2:0 • Bit Depth: 10 bit • EOTF: SMPTE ST 2084 (PQ) • Color Primaries: ITU-R BT.2020 • Metadata: SMPTE ST 2086, MaxFALL, MaxCLL • Grading color volume, frame average e content light levels • Allow the TV to determine how much processing is required to adapt the content to its own characteristics (without unnecessarily altering it)

6 ATEME © 1991-2016. Confidential & Proprietary HDR10 Background – HDR / WCG • High Dynamic Range (HDR) • Represent a greater range of luminance levels, closer to the human eye range of luminance • Wide Color Gamut (WCG) • BT.2020: pure spectral primary colors • This wide color gamut encompasses 75.8% of the visible colors, vs. the current color space BT.709 with 35.9% Human Vision

UHD BT.2020

HD BT.709

H264 (Mbps) HEVC (Mbps) 30-50% bitrate savings vs. H264 SD 1.5 to 2.5 0.8 to 1.5 HD 5 to 9 2.5 to 4.5 New resolution: 4K 4Kp60 N/A 10 to 18

H264 HEVC Premium viewing experience over unmanaged networks Block Size 16 x 16 64 x 64

Partitions Multiple Inter, Hierarchical quad, down to 4 x 4 down to 8x8 and 4x4

Intra Modes 9 35

Transform sizes 8x8, 4x4 32x32, 16,x16, 8x8, 4x4

H264 HEVC 30-50% bitrate savings vs. H264

New resolution: 4K

Premium viewing experience over unmanaged networks

9 ATEME © 1991-2016. Confidential & Proprietary HDR10 Background – HDR Encoding Optimization • Opto-Electronic Transfer Function (OETF) is nonlinear • May generate Chroma shifts and halos on bright area edges due to steep curve at high luminance • E.g. an error of 16 in code value (1.5% of the full scale) can generate a luminance error of 123 nits (10% of the full scale)

10 ATEME © 1991-2016. Confidential & Proprietary HDR10 Background – HDR Encoding Optimization • Opto-Electronic Transfer Function (OETF) is nonlinear • May generate Chroma shifts and halos on bright area edges due to steep curve at high luminance • E.g. an error of 16 in code value (1.5% of the full scale) can generate a luminance error of 123 nits (10% of the full scale)

• Compression can overcome this challenge with nonlinear algorithms • Linear space RGB chroma sub-sampling • Avoid visual defects caused by chroma and luma errors that are magnified by the steep curve of HDR EOTFs • Sharp luminance edges management • Avoid halos, blocking and color shift caused by compression errors that, even small, can have large consequence along gradients • Detection filter for areas that are prone to contouring • Avoid banding artefacts that 1 code value difference can cause even with 10-bits encoding

• Besides HDR10, Technicolor/Philips, Dolby and NHK/BBC are proposing alternatives: Static Base Layer Enhancement Dynamic SDR TV/STB HDR TV/STB Technology OETF Metadata compatibility Layer Metadata compatibility compatibility (ST 2086) BDA/HDR 10 HDR PQ None Yes No No With HDR10 support

BBC/NHK SDR/HDR HLG None Yes No Yes (UHD) With HLG support

Technicolor HDR PQ None Yes Yes Yes with IP With HDR10 support or Technicolor IP Technicolor SDR BT.709 None Yes Yes Yes With Technicolor IP

Dolby Vision HDR PQ Present Yes Yes Yes with IP With HDR10 support or Dolby IP Dolby Vision SDR BT.709 Present Yes Yes Yes with IP With Dolby IP

Dolby Vision None PQ None Yes Yes No With Dolby IP

• CTA (former CEA) • Mandated HDR10 in the HDR-compatible display spec

• HDMI • 2.0a: Support standard ST 2084 + metadata ST 2086

• Blu-Ray Disc Association (BDA) • HDR 10: HEVC main 10-bits + ST-2084 + ST-2086 Metadata • Optional proprietary metadata: Philips, Technicolor, Dolby

• Industry forum • Ultra HD Forum: HDR 10 & HLG • UHD Alliance: HDR 10

HDR10 (eg UHD Blu-ray) Native HDR HDR HDR Only - File or Live HDR Production STB - No Backward HDR w/ HDR compatible Static Static Metadata Metadata

HDR Only Production Native SDR HDR SDR HDR or HDR - File or Live Production STB - Backward HDR HDR w/ HDR compatible HLG or PQ Metadata w/ optional Metadata

SDR or HDR Production SDR SDR or HDR STB or Legacy SDR Inverse Trimpass TV with Tone Metadata - File or Live Or HDR IP HDR Mapper creation - Backward HDR SDR w/ creation SDR or HDR compatible Metadata Metadata Or HDR

14 ATEME © 1991-2016. Confidential & Proprietary HDR10 – Summary • Collection of Technologies and Specifications • HEVC Main 10 (4:2:0 10bits); EOTF PQ; BT.2020; SMPTE ST 2086, MaxFALL, MaxCLL • Live or File • Native HDR Production • Static Metadata • Non Backward compatible (SDR) • Specific Encoding Tools Improves Compressed HDR Results • Specified / Adopted: CTA; HDMI; BDA; UHD Forum; UHD Alliance