The future of TV will be more lifelike and immersive - but will it be 4K


Mark Horton TV-Bay Magazine
Read ezine online
by Mark Horton
Issue 108 - December 2015

Ultra high definition television (UHDTV) offers more resolution (4K), high dynamic range (HDR), high frame rate (HFR) and wide color gamut (WCG) as tools to radically enhance the consumer viewing experience but they also pose some of the biggest questions about what the future of TV will look like.

4K resolution has taken the limelight in many conversations about the future of image quality, for good reason: it delivers four times as much detail as 1080i HD television, with finer detail and better texture. However more recently high dynamic range, combined with wide color gamut and 10 bit sampling have come to the fore, either as additions to 4K or as a way of improving HD without the need for 4K.

The human visual system (HVS) creates detail through a complex process that includes analysis of color differences and luminance differences. So, improving dynamic range and color gamut doesnt just make a picture look brighter or more colorful, it actually also improves resolution.

One problem today with HDTV and also with some current 4K is that 8-bit sampling is used. With less than 256 steps to describe digital levels, unpleasant contour lines appear on sunsets, graduated colors, cloudscapes and other shaded images. Contouring can also occur when content changes slowly (as can happen with dissolves between graphics), as the contour lines move across the images with changes in the levels.

The use of 10-bit sampled video with up to 4 times more steps - means there are more granularity between adjacent digital levels, making contour lines less of a possibility. Adding 10 bit to 4K (or even to todays HD services) offers potential benefits, however the extra precision of 10 bit really delivers when high dynamic range and wide color gamut are added.

10 bit high dynamic range and wide color gamut offers far more subtle and realistic images than either HD or the current generation of 4K and unlike 4K this combination of enhancements is not wholly dependent on large screen sizes and close viewing distances.

One question on 4K resolution has been that the distance from which the average consumer watches his or her television at home is not ideal for delivering the full effect of 4K. Even though 4K TV enables the use of larger TVs without softening or blurring, there is a complex relationship between peoples viewing distances and the capabilities of the human visual system, along with screen size and resolution. This means that smaller 4K TVs do not really give much consumer benefit at typical home viewing distances; on average only 4K TVs that measure 80 inches or more would provide the full effect in many homes.

For this reason in particular, a number of question marks still hang over the head of 4K, and whether it deserves to be heralded as the future of more authentic picture quality. The debate is now shifting to enhancing either 4K or alternatively HD with 10 bit, high dynamic range and wide color gamut.


Tags: iss108 | 4k | uhdtv | hdr | hfr | Mark Horton
Contributing Author Mark Horton

Read this article in the tv-bay digital magazine
Article Copyright tv-bay limited. All trademarks recognised.
Reproduction of the content strictly prohibited without written consent.

Related Interviews
  • HDR, 12G, 4k, IP - the range expands from Phabrix at NAB 2017

    HDR, 12G, 4k, IP - the range expands from Phabrix at NAB 2017

  • Matrox Unveils Monarch EDGE 4K Contribution Encoder at IBC 2018

    Matrox Unveils Monarch EDGE 4K Contribution Encoder at IBC 2018

  • 12G 4K microMUSA Jackfield and Fibre Termination Solutions from Canford at IBC 2018

    12G 4K microMUSA Jackfield and Fibre Termination Solutions from Canford at IBC 2018

  • Blackmagic Design Pocket Cinema Camera BMPCC 4K at IBC 2018

    Blackmagic Design Pocket Cinema Camera BMPCC 4K at IBC 2018

  • Apantac 4k UHD HDMI/DVI Multiviewer with KVM at IBC 2018

    Apantac 4k UHD HDMI/DVI Multiviewer with KVM at IBC 2018

  • JVC 4K Connected Camera GY-HC550 and 500 at IBC 2018

    JVC 4K Connected Camera GY-HC550 and 500 at IBC 2018

  • IMT Vislink HCAM 4k UHD transmitter at IBC 2018

    IMT Vislink HCAM 4k UHD transmitter at IBC 2018

  • Blackmagic Pocket Cinema Camera 4K at NAB 2018

    Blackmagic Pocket Cinema Camera 4K at NAB 2018

  • Blackmagic ATEM Television Studio Pro 4K at NAB 2018

    Blackmagic ATEM Television Studio Pro 4K at NAB 2018

  • 4K UHD Multi-viewer HDMI 2.0 from Apantac at NAB 2018

    4K UHD Multi-viewer HDMI 2.0 from Apantac at NAB 2018

  • Omnitek Updates for Ultra 4k Toolbox at NAB 2018

    Omnitek Updates for Ultra 4k Toolbox at NAB 2018

  • 4k and HEVC with Garland at BVE 2018

    4k and HEVC with Garland at BVE 2018

  • 6K Sony Venice and Sony 4k Palm Camcorders at IBC 2017

    6K Sony Venice and Sony 4k Palm Camcorders at IBC 2017

  • JVC 4K UHD Monitors at IBC 2017

    JVC 4K UHD Monitors at IBC 2017

  • The CFU5 4k Transmitter from Vislink at IBC 2017

    The CFU5 4k Transmitter from Vislink at IBC 2017

  • Wireless 4K Transmitter from DTC Domo Broadcast at IBC 2017

    Wireless 4K Transmitter from DTC Domo Broadcast at IBC 2017

  • AJA Thunderbolt 3 IO 4k Plus at IBC 2017

    AJA Thunderbolt 3 IO 4k Plus at IBC 2017

  • Quad 4k Capture and Stream with Maevex from Matrox at NAB 2017

    Quad 4k Capture and Stream with Maevex from Matrox at NAB 2017

  • 4k 60 Matrix from GDSYS at NAB 2017

    4k 60 Matrix from GDSYS at NAB 2017

  • HEVC 4k Encoding from Aviwest at NAB 2017

    HEVC 4k Encoding from Aviwest at NAB 2017

  • Apantac 4k live demo at NAB 2016

    Apantac 4k live demo at NAB 2016

  • Omnitek Ultra 4K Tool Box at IBC 2015

    Omnitek Ultra 4K Tool Box at IBC 2015

  • Snell Advanced Media (SAM) 4k workflow at IBC 2015

    Snell Advanced Media (SAM) 4k workflow at IBC 2015

  • MULTIDYNE Silverback 4k at NAB 2015

    MULTIDYNE Silverback 4k at NAB 2015

  • Atomos talking 4K on BroadcastShow LIVE at IBC 2013

    Atomos talking 4K on BroadcastShow LIVE at IBC 2013

  • Ateme at IBC 2014

    Ateme at IBC 2014

  • Ikegami 8k camera at IBC 2016

    Ikegami 8k camera at IBC 2016

  • Ikegami HQLM-3120W monitor at IBC 2016

    Ikegami HQLM-3120W monitor at IBC 2016

  • Ikegami UHK-430 camera at IBC 2016

    Ikegami UHK-430 camera at IBC 2016

  • Panasonic Lumix GH5 at BVE 2017

    Panasonic Lumix GH5 at BVE 2017

  • Garland at BVE 2017

    Garland at BVE 2017

  • Video Devices PIX-E at IBC 2016

    Video Devices PIX-E at IBC 2016

  • Sound Devices Wingman app at IBC 2016

    Sound Devices Wingman app at IBC 2016

  • JVC GY-LS300 at IBC 2015

    JVC GY-LS300 at IBC 2015

  • AVIWEST at IBC 2015

    AVIWEST at IBC 2015

  • BBright at IBC 2015

    BBright at IBC 2015

  • Thomson Video Networks at IBC 2015

    Thomson Video Networks at IBC 2015

  • Lynx Technik at IBC 2015

    Lynx Technik at IBC 2015

  • JVC at BVE 2015

    JVC at BVE 2015

  • Grass Valley at BVE 2015

    Grass Valley at BVE 2015

  • Gearhouse Broadcast at BVE 2015

    Gearhouse Broadcast at BVE 2015

  • KITPLUS rig setup at IBC 2014

    KITPLUS rig setup at IBC 2014

  • Tektronix at IBC 2014

    Tektronix at IBC 2014

  • Cooke Optics technology at IBC 2014

    Cooke Optics technology at IBC 2014

  • Cooke Optics talk anamorphic at IBC 2014

    Cooke Optics talk anamorphic at IBC 2014

  • JVC GY-LS300 prototype at IBC 2014

    JVC GY-LS300 prototype at IBC 2014

  • MultiDyne SilverBACK at IBC 2014

    MultiDyne SilverBACK at IBC 2014

  • BBright at IBC 2014

    BBright at IBC 2014

  • Hitachi at IBC 2014

    Hitachi at IBC 2014

  • Guntermann and Drunck DP-HR range at IBC 2014

    Guntermann and Drunck DP-HR range at IBC 2014

  • Quantel LiveTouch at IBC 2014

    Quantel LiveTouch at IBC 2014

  • Quantel deal with AFP at IBC 2014

    Quantel deal with AFP at IBC 2014

  • Snell Kahuna Production Switcher at IBC 2014

    Snell Kahuna Production Switcher at IBC 2014

  • Matrox Monarch HD at NAB 2014

    Matrox Monarch HD at NAB 2014

  • Elemental Technologies Software-Defined Video at NAB 2014

    Elemental Technologies Software-Defined Video at NAB 2014

  • Elemental Technologies HEVC solutions at NAB 2014

    Elemental Technologies HEVC solutions at NAB 2014

  • Elemental Technologies Multiscreen Solutions at NAB 2014

    Elemental Technologies Multiscreen Solutions at NAB 2014

  • Guntermann and Drunck at NAB 2014

    Guntermann and Drunck at NAB 2014

  • Matrox Mojito at NAB 2014

    Matrox Mojito at NAB 2014

  • Matrox Capture Card at NAB 2014

    Matrox Capture Card at NAB 2014

  • Blackmagic URSA at NAB 2014

    Blackmagic URSA at NAB 2014

  • Blackmagic Studio Camera at NAB 2014

    Blackmagic Studio Camera at NAB 2014

  • Cintel Film Scanner: Blackmagic Design at NAB 2014

    Cintel Film Scanner: Blackmagic Design at NAB 2014

  • Guntermann and Drunck at BVE 2014

    Guntermann and Drunck at BVE 2014

  • Philip Bloom on Tour in Belfast

    Philip Bloom on Tour in Belfast

  • Cinegy on BroadcastShow LIVE at IBC 2013

    Cinegy on BroadcastShow LIVE at IBC 2013

  • Blackmagic Design on BroadcastShow LIVE at IBC 2013

    Blackmagic Design on BroadcastShow LIVE at IBC 2013

  • Miranda on BroadcastShow LIVE at IBC 2013

    Miranda on BroadcastShow LIVE at IBC 2013

  • Snell on BroadcastShow LIVE at IBC 2013

    Snell on BroadcastShow LIVE at IBC 2013

  • Harmonics Tom Lattie on BroadcastShow LIVE at IBC 2013

    Harmonics Tom Lattie on BroadcastShow LIVE at IBC 2013

  • JVC GY-HM600 series camera updates at IBC 2013

    JVC GY-HM600 series camera updates at IBC 2013

  • ATEME at IBC 2013

    ATEME at IBC 2013

  • Multidyne SilverBack, BullDog and Spider at IBC 2013

    Multidyne SilverBack, BullDog and Spider at IBC 2013

  • Cinegy at IBC 2013

    Cinegy at IBC 2013

  • Facilis at IBC 2013

    Facilis at IBC 2013

  • Blackmagic Design with the new ATEM Production Suite at IBC 2013

    Blackmagic Design with the new ATEM Production Suite at IBC 2013

  • MultiDyne: SilverBACK at NAB 2013

    MultiDyne: SilverBACK at NAB 2013

  • Quantel Pablo Rio at NAB 2013

    Quantel Pablo Rio at NAB 2013

  • Blackmagic Design: Products at NAB 2013

    Blackmagic Design: Products at NAB 2013

  • Facilis at NAB 2013

    Facilis at NAB 2013

  • AJA at BVE 2013

    AJA at BVE 2013

  • JVC at BVE 2012

    JVC at BVE 2012

  • FS-HDR from AJA at NAB 2018

    FS-HDR from AJA at NAB 2018

  • All you need to know about the Sony FS5 Raw and HDR Upgrade and more from NAB 2017

    All you need to know about the Sony FS5 Raw and HDR Upgrade and more from NAB 2017

  • IP, 3G-SDI + HDR generation, analysis and monitoring from Phabrix NAB 2017

    IP, 3G-SDI + HDR generation, analysis and monitoring from Phabrix NAB 2017

  • Elemental Technologies at IBC 2015

    Elemental Technologies at IBC 2015

  • Tektronix at IBC 2016

    Tektronix at IBC 2016

  • BBright at NAB 2016

    BBright at NAB 2016

  • Inmarsat at NAB 2014

    Inmarsat at NAB 2014

  • Inmarsat: Global Xpress and Explorer at NAB 2013

    Inmarsat: Global Xpress and Explorer at NAB 2013

  • Shure at BVE North 2011

    Shure at BVE North 2011


Related Shows
  • Philip Bloom chats 4k: BVE Day 2

    Philip Bloom chats 4k: BVE Day 2


Articles
NEP Student Day
KitPlus The world of broadcasting is in constant flux, with undefined boundaries between broadcast, TV, film and interactive media. With a changing consumer demographic now a key influence on the industry, many companies no longer specialise in a single medium, but have had to become adaptable to deliver multiple services through a combination of media.
Tags: iss134 | students | tvfutures | NEP | KitPlus
Contributing Author KitPlus Click to read or download PDF
Protecting the continuity of transmission
Lorna Garrett Your viewers love you. You consistently bring them their preferred channels 24/7. They’ve come to rely on you for their viewing pleasure. They never miss cheering on their beloved sports teams. They’re the envy of their friends as they watch live concerts of their favourite bands. They gather the family around and catch up on their must-see shows. They don’t have a bad word to say about you.
Tags: iss134 | garland | gpl | streaming | artel | disaster recovery | Lorna Garrett
Contributing Author Lorna Garrett Click to read or download PDF
Accelerated Workflows with eGPU
Mike Griggs From the UK’s National Trust to magazine publishers to manufacturers, digital content creator Mike Griggs has a wide and varied portfolio of clients for whom he creates 3D art, motion graphics and multimedia exhibits. A typical day might involve sampling birdsong near Virginia Woolf’s country estate or creating 3D animations for VR. To keep on top of these demands, Griggs wanted to take the full power of the GPU computing revolution on the road.
Tags: iss134 | sonnet | egpu | amd | post production | editing | Mike Griggs
Contributing Author Mike Griggs Click to read or download PDF
Using Wireless Transmission
Jeremy Benning Wireless acquisition is a staple of live sports, entertainment and reality shows where cable free capture permits shots not previously possible, for health and safety reasons, and gives the camera-operator greater artistic licence to roam. The same is increasingly true of narrative drama where cinematographers are keen to work handheld or Steadicam where that helps tell the story. Any equipment which frees their movement and time by being lighter, easier to use and reliable in performance is going to tick a lot of boxes.
Tags: iss134 | wireless | 4k | transmission | Jeremy Benning
Contributing Author Jeremy Benning Click to read or download PDF
Shedding Light on the Blackmagic Pocket Cinema Camera 4k BMCPP4K
Garth de Bruno Austin “What is it about light that has us craving it?” Is the question asked in the opening seconds of Garth de Bruno Austin’s latest short, The Colour of Light. Exploring this natural, human need as well as our innate desire to control it, Garth’s film showcases everyday people going about their lives in differing degrees of luminance, whether that be an artificial streetlight or a natural morning sunrise.
Tags: iss134 | blackmagic | cinema camera | 4k | cpp4k | Garth de Bruno Austin
Contributing Author Garth de Bruno Austin Click to read or download PDF