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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)…
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
Pixel Luminance Histogram
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HIGHER BIT DEPTH
• Higher Bit Depth
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
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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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8K SATELLITE BROADCASTING…
• 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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8K SATELLITE BROADCASTING…
• 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
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