next generation broadcasting technology

UHDTV

10th September 2015

Vinayagam M

Next Generation Broadcasting Technology

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Agenda

Article Review

Ultra HD

Ultra HD Quality Factors

Ultra HD Sound System

Next Generation Broadcasting Technology

Ultra HD Standardization

Ultra HD in Korea

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ARTICLE REVIEW

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ARTICLE TITLE : UHDTV Roadmap for Ultimate 8K from 4K (Page No.47)

REF ARTICLE : FROM NAB2015

ARTICLE AUTHOR : Toru Kuroda, NHK, Tokyo, Japan

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ARTICLE REVIEW

• Focus on Next-Generation Television Standard beyond HDTV and 4KTelevision called 8K Super Hi-Vision(SHV)

• Provides the viewers with a superior sensation of reality

• Discussed about

– Introduction about UHDTV

– Overview of 8K Broadcasting

Satellite Transmission

Video Source Coding

Interface for Content Production

– Display Technologies

Higher Definition

Higher Frame rate

Wider Color Gamut

Flexible Displays

– Multichannel Sound System

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TECHNOLOGY INVOLVED

• Display Technology – UHDTV 4K / 8K

• UHDTV Broadcasting Technology

• Multichannel Sound System Technology

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ULTR HD

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ULTRA HD

• Display Technology

• For Consumer

– Match Cinematic Quality in the Home

– Fully Utilize latest screen Technology

– Improve User Experience

• For Production– Produce Immerse High Quality

Content– Leverage Existing Digital Cinema

Content– Future Proof both TV and Cinema

Material– Improve HD Quality

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ULTRA HD…

• Ultra HD Offers

– Higher Resolution

– Higher Frame rates

– More Colors

– Higher Dynamic Range (HDR)

– Immerge Audio

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ULTRA HD 4K

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ULTRA HD 8K

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WHY IS MORE RESOLUTION IS BETTER?

• More Resolution Allows Closer Viewing of Larger Image

• Closer Viewing of Larger Image Increases Viewing Angle

• Increased Viewing Angle Produces Stronger Emotional Response

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ULTRA HD APPLICATIONS

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ULTRA HD SYSTEM – CAMERAS

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ULTRA HD SYSTEM – DISPLAYS

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ULTRA HD SYSTEM – CODECS

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ULTRA HD QUALITY FACTORS

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DISPLAY SYSTEM DESIGN

• Human Visual System

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VISUAL QUALITY FACTORS

• Static resolution

• Dynamic resolution

• Color fidelity

• Contrast

• Contouring

• Artifacts

• Sound

• Depth cues

• Need: improving them in a way which creates a ‘wow’?

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Ultra HD QUALITY FACTORS TO CONSIDER

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Ultra HD QUALITY VISUAL FACTORS TO CONSIDER

• From More Pixels to Better Pixels!

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HIGHER DEFINITION

• Larger Pixel Count is fundamental for 4/8K Display

• 8K Display Development History

(Liquid Crystal On silicon)

(Liquid Crystal Display)

(Plasma Display Panel)

(Organic Light-Emitting Diode)

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HIGHER FRAME RATE (HFR)

• Improves the Motion Portrayal of Display System

• Determined by the balance between the improvement in picture and the difficulty in increasing bandwidth

• Gain consensus worldwide in order to reduce motion blur by shortening the duty time @ the display without flicker artifacts

• Proposed Frame rate is 120fps

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WIDE COLOR GAMUT (WCG)

Source : Implications of High Dynamic Range on the Broadcast Chain for HD and Ultra-HD Content,

Lukasz Litwic, Olie Baumann, Matthew S. Goldman, Philip White, 2015 NAB BEC

Limited Dynamic Range for TV Compared to Film

Ultra HD to close gap by Higher Bit Depth

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HIGH DYNAMIC RANGE (HDR)

• Dynamic Range represents Luminance Level

• HVS has a significantly larger dynamic range

• Achieved by extending the range both towards darker as well aslighter values as a result of fitting a conventional Display with aspatially varying backlight

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HIGH DYNAMIC RANGE (HDR)…



Pixel Luminance Histogram

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HIGHER BIT DEPTH

• Higher Bit Depth



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FLEXIBLE DISPLAYS

• Larger Screens on the Order of Displays

• Development proceeding on thin and light sheet displays

• Organic Light-Emitting Diodes(OLEDs) negative for Backlighting and thin displays

• Flexible active-matrix OLED (AMOLED) displays used to design Ultra HD 4K/8K Displays

– Ranging from 8 to 18 inches have been developed

– Use plastic substrates and are still small to medium sized

13.5-inch diagonal 4K flexible AMOLED display

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8K SUPER HI-VISION (SHV)

• 8K SHV has been developed as the next-generation television ofcurrent HDTV to provide the viewers a superior sensation of reality

• Japan aims to conduct trial broadcasting in 2016 and start a broadcastservice in 2018

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8K SHV SYSTEM – VIDEO PARAMETERS

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ULTRA HD SOUND SYSTEM

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UHDTV SOUND SYSTEM

• 22.2 Multichannel Sound

– Channel based audio system comprising three vertical layers:

Top layer with 9 channels

Middle layer with 10 channels

Bottom layer with 3 channels

2 channels for low-frequency effects

– NHK (Nippon Hōsō Kyōkai - Japan Broadcasting Corporation) hasdeveloped 22.2 channel audio system for

Program Production

Transmission

Reproduction System

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UHDTV SOUND SYSTEM…

• 22.2 Multichannel Sound

– 24 channels distributed in three layers and its audio channel mapping arestandardized in ITU-R Recommendation BS.2051 (2014), and also inSMPTE and ISO/IEC

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NEXT GENERATION BROADCASTING

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NEXT GENERATION BROADCASTING SYSTEM

• UHDTV Terrestrial Full Link System

Sourcing Capture HEVC Encoding

HEVC Decoding

Editing and Production

Display Presentation

• Leading UHDTV System in the world• 40% Spectrum Efficiency Enhanced

ChannelTransmission

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NEXT GENERATION BROADCASTING SYSTEM…

• Evolution of Terrestrial TV

# Hybrid Broadcast

# Personalization

# Targeted Ad

# UHD

# Multi-view/i-Screen, 3D

# Immersive Audio

# High Dynamic Rage Image# Flexible Spectrum

# Robust Reception

# Mobile Reception

# PLPs

Immersive

Experience

Ubiqitous

Access

Interactive

Demand

# Emergence

# Public Service

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UHD CONTRIBUTION VS (RE) DISTRIBUTION

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BROADCAST INDUSTRY CHAIN

Verificatiion

ISO

Production

Standards IP, Patents

TV SetsNetwork

IP Core

SOC

Head Ends

通信塔

Operation

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UHD USED APPLICATION FIELD

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MEDIA DELIVERY SYSTEM : SMT

Multimedia Contents

TS

Broadcasting

USA—ATSCEU—DVBJPN—ISDBCHN—DTMB

ConnectiveDLNA, UPnPAirPlay, Miracast

TCP：MPEG-DASH, HLSUDP：FLUTE

Multimedia Contents

Streaming

IP

Files

Broadband

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MEDIA DELIVERY SYSTEM : SMT

Smart Media Transport

Presentation Engine

NGB

IP

Broadband

Network convergence

IP based for broadcasting

Traffic sharing cooperative network

Push and pull combined delivery

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8K SATELLITE BROADCASTING

• Every part of the ecosystem from production at a studio or in the fieldto reception at home has to be complete and connected to each otherbefore starting an 8K satellite broadcast

• Various technologies and broadcast standards have to be developed

• Standardization process has been ongoing at the Association of RadioIndustries and Businesses (ARIB) in conformance with the report ofthe Telecommunications Council, Japan

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8K SATELLITE BROADCASTING…

• Satellite Transmission

– Difficult to assign a new spectrum band to a new service owing to theextremely high demand for spectrum from various industries

– Use of the current band for broadcasting is also beneficial for the rapidproliferation of a service to homes

– Roadmap described in the previous section specifies a 12- GHz-bandsatellite as one of the main transmission paths for 4K and 8K broadcasting

– Transmission system for advanced wideband digital satellite broadcasting,which was standardized at ARIB, has been recently revised to becompliant with the specifications

– Transmission capacity of 100 Mbps was achieved with 16 APSK, anLDPC coding rate of 7/9, and a roll-off of 0.03

Satellite transmission van used in the test (Jan. 28, 2014)

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• Video Source Coding– Compression for a video source signal is vital for a broadcast service that

uses a limited bandwidth– Technology advances in each generation, and the newest one is

H.265/HEVC, which was standardized in 2013– Real-Time 8K encoder compliant with this standard was developed by

NHK– Picture-quality assessment concluded that a bit rate of 80 to 100 Mbps is

required for 8K/60P– ARIB standard was revised to use H.265/HEVC

H.265/HEVC real-time encoder for 8K

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• Interface for Content Production– Interface is indispensable for the construction of a production system– Extensive efforts are being made to develop a UHDTV interface having a

similar role to that of an HD-SDI in an HDTV system– An interface based on 10Gbps multifiber optics technology was

standardized at ARIB– Production equipment such as a camera, recorder, and display has been

developed– The connector and cable used are similar to those of an HD-SDI and

widespread use is– expected with cost reduction– Interface is called “U-SDI” and is under standardization at ITU-R and

SMPTE globally

(a) an optical cable for the new interface and (b) a conventional coaxial cable

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UHDTV BROADCASTING SYSTEM SPECIFICATION

• Technical specifications for UHDTV broadcasting systems in Japan

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ULTRA HD STANDARDIZATION

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UHD STANDARDIZATION

• What about compression?– HEVC (H.265 and MPEG H Part 2):High Efficiency Video Coding

– Version 1(Jan 2013): Main and Main 10(8-10bits, 4:2:0)

– Version 2(July 2014): Range Extensions (≥10bits, 4:X:X) + Scalabilities

– On going: MPEG XYZ, HDR working group (CFE July 2015)

• What about Signalization/transport?– MPEG-2 TS, MPEG-DASH, .mp4

– MMT (MPEG Media Transport)? HLS?

– SMPTE : 6G/12G SDI ?, Video Over IP (SMPTE 2022) ?

– HDMI 2.0 : supports up to 4kp60

• What about Application standards?– ARIB B-32, DVB (UHD Phase1)

– SCTE, ATSC 3.0

• What about Audio?– Nothing new for phase 1

– Audio 3D/Object / Spatialization => MPEG-H part 3, AC4

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UHD STANDARDIZATION…

• Standardization bodies are working on defining what UHD is:

– ISO/ITU : Format, Compression and Transport

– SMPTE & HDMI : Baseband transport

– DVB, ARIB, SCTE, ATSC : End-to-End Solutions

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UHD STANDARDIZATION…

• Phase 1 standardization (almost) finished– 3840x2160@60fps max

– 4:2:0, 8–10 bits

– Rec 709 (BT2020 optional and discouraged)

– Video codec is HEVC Main and Main 10

– Audio: current toolbox

• Phase 2 will address– 3840x2160p

– Up to 4:2:2 and 4:4:4

– Higher frame-rates (i.e. 100/120Hz)

– Wider Color Gamut (i.e. BT2020 or subset)

– High Dynamic Range

– Scalable Video Codec, HEVC

– Audio: beyond 5.1, 3D Audio

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UHD STANDARDIZATION – JAPAN TRENDS

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ATSC3.0 STANDARDS

System Proposal

1. DVB（DVB-T2 and DVB-NGH）

2. LG / Harris / Zenith（OFDM with optional MIMO technology）

3. NERC / SJTU / SARI（OFDM with distributed MIMO,Uplink）

4. Qualcomm / Ericsson（3GPP LTE eMBMS）

5. Sinclair Broadcasting / Coherent Logix

6. Samsung / Sony（Enhanced DVB-T2）

7. Technicolor（DVB-T2 DVB-T2 Lite DVB-NGH features）

Technology Module

1. NHK

2. CRC / ETRI（Cloud transmission technology）

3. Allen Limberg

4. Guarneri Communcations

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UHDTV INTERNATIONAL PROMOTION TREANDS

• UHD Alliance (UHDA)• Founding Members : Leading

Companies in Entertainment,Technology, Consumer Electronicsand Distribution

• UHD Alliance aims to deliver thepremium entertainment experience tothe consumer on UHD

• To do essential quality technology on

– HDR (High Dynamic Range)

– WCG (Wide Color Gamut)

– HFR (High Frame Rate)

– Advance Audio

• Technical Specifications and Certifications

- 2015.4.7. Press Release

Source : http://www.uhdalliance.org/uhd-alliance-calls-for-contributor-members-to-define-the-next-generation-entertainment-experience/

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ULTRA HD IN KOREA

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UHD IN KOREA

• UHD over DVB-T2

• 3 free to air experimental licenses have been granted to KBS, MBC and SBS

– Licenses until Dec 2014, coverage on metro Seoul, >25% of the population

– Experiment live UHD60P broadcast using DVB-T2, 25 to 27 Mbps

– FIFA WC + Asian games (South Korea)in Sept.2014 was a major highlight

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ASIAN GAMES 2014 : UHD OVER DVB-T2

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ASIAN GAMES 2014 : SBS DELIVERY MODEL

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TO SUMMARIZE

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THANK YOU