Waveform Monitors in 4K Production


Alan Wheable TV-Bay Magazine
Read ezine online
by Alan Wheable
Issue 112-April 2016
risk

Waveforms have always been one of the essential tools for anyone working in the video industry and are used for level alignment, grading and quality control to touch on just a few areas.

Working with HD and 3G-SDI waveform technology may have been a solution in the early days of UHD/4k to display the waveforms from individual Square Division feeds, but it does not help if you cannot see the combined image at an appropriate size or resolution or the waveform monitor doesn't have the required physical connections.

It can be difficult to ensure the quality of UHD/4k production if the required tools are not available. The importance of appropriate waveform monitor technology in UHD/4k content creation and distribution increases with the need to ensure that conversions between link types (for example between QL 3G-SDI, 6G-SDI, 12G-SDI, HDMI and IP), between encoding methods (such as Square Division and 2 Sample Interleave), between different bit depth formats and between colour spaces (ie BT.709 and BT.2020) are correct.

The waveform display must be expandable to see any digital level issues (for example when converting between 8, 10 and 12-bit video), image construction issues (for example when converting between link types and encoding methods) and colour space issues that may otherwise go unnoticed on T&M equipment with small, low resolution displays.

Ideally the waveform display needs the ability to view the waveform of the composite image as well as the waveforms of individual links to make it easy to identify issues with 2 Sample Interleave and Square Division images that may otherwise go unnoticed in any environment using existing HD/3G infrastructure to deliver 4k/UHD material.

Although some T&M equipment may boast UHD/4k waveforms, these are often low resolution displays, with sub-sampled waveforms, that give a level of comfort and familiarity, but will hide any underlying issues.

What is required is waveform monitor technology that has been designed specifically to meet the exacting needs of UHD/4k environments while supporting all of the different video formats that will be present in the industry for many years to come. It needs to be able to display waveform, CIE gamut charts and vectorscope instruments at the highest resolution, regardless of the physical link over which it is delivered and needs to be future-proofed to accommodate the evolving needs of the industry.

The new high resolution waveform monitor available as standard on the Omnitek Ultra XR and as an option on the Ultra 4k Tool Box supports video formats from SD up to UHD/4k at frame rates up to 60Hz and supports both BT.709 and BT.2020 colour spaces. BT.2020 extends the viewable palette of colours (for UHD/4k formats above 60Hz) and improves dynamic range and the CIE Gamut display allows this to be viewed.

Due to be debuted at NAB 2016, the Omnitek Ultra XR is configured specifically for content creators, colourists, post-production editors and other processors of DI, working with ultra high resolution UHD images delivered over QL 3G, DL 6G or 12G SDI and HDMI links.

The Ultra XR provides all the traditional tools needed to work with DI-high-resolution waveform display, vectorscope, CIE chart etc-but engineered specifically with 4k/UHD in mind. The Ultra XR supports 12-bit 4:4:4 SDI input formats in YCbCr and RGB, along with Wide Colour Gamut RGB-ITU-R BT.2020 and High Dynamic Range (HDR) inputs-ST2084/PQ and Hybrid Log Gamma.

The Ultra XR has the same small form factor as the Ultra 4k Tool Box which makes it ideal for any environment and especially where space, power and weight need to be kept as low as possible. The range of input, output and monitoring connections mean that it can be easily integrated into any environment.

The Ultra XR supports SD, HD, 3G and 6G-SDI as standard, with 12G-SDI as an option. The ability of the Ultra XR to monitor different physical links as well Square Division and 2 Sample Interleaved sources ensures that the signal can be viewed and checked regardless of how it actually arrives. This flexibility makes the Ultra XR an ideal fit for existing installations as the technological landscape continuously evolves.

Intuitive user control and monitoring is provided via HDMI, SDI or web browser connections. The use of mouse & keyboard (optional) allows the control surface to be configured exactly as required and presets can be used to quickly recall previously saved settings.

In addition to the high resolution waveform monitor, provided on the Ultra XR, traditional instruments such as vectorscope are included. Although this basic tool provides a level of usefulness in UHD/4k applications, other tools (such as BT.2020 colour space waveform displays and CIE Gamut charts) are provided to ensure that the new BT 2020 colour space rendition of the image is correct.

The region of interest functionality of the waveform display allows it to be expanded to see any digital level issues, image construction issues and colour space issues that may otherwise go unnoticed on some other T&M equipment.

Omnitek will be exhibiting the Ultra XR and Ultra 4k Tool Box-its 12G-SDI UHD Test Measurement solutions at NAB this year in Central Hall-C10418.

risk

Tags: iss112 | Waveform Monitors | 4K | UHD | Alan Wheable
Contributing Author Alan Wheable

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

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

  • IMT Vislink HCAM 4k UHD transmitter at IBC 2018

    IMT Vislink HCAM 4k UHD transmitter at IBC 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

  • JVC 4K UHD Monitors at IBC 2017

    JVC 4K UHD Monitors at IBC 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

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

    JVC 4K Connected Camera GY-HC550 and 500 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

  • 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

  • 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

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

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

  • 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

  • BBright at IBC 2015

    BBright at IBC 2015

  • Hitachi at IBC 2014

    Hitachi at IBC 2014

  • Ateme at IBC 2014

    Ateme at IBC 2014

  • 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

  • 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

  • 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

  • QX Hybrid 2110/12G-SDI UHD Rasterizer from Phabrix at IBC 2018

    QX Hybrid 2110/12G-SDI UHD Rasterizer from Phabrix at IBC 2018

  • Apantac UHD conversion technology at IBC 2016

    Apantac UHD conversion technology at IBC 2016


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

    Philip Bloom chats 4k: BVE Day 2


Articles
An Epiphany Moment
Peter Savage 2 I had been negotiating the sale of my company and had reached the really hard end of the bargain. We were close to agreeing the final sum after a lot of too-much-give-and-not-enough-take negotiation. The solicitors were calling me, keen for a deal. It had come down to one sticking point and, in my hard ball “I am the Wolf of Wall Street” guise, I wasn’t going to let it go. It would make a value difference of 1.5% on the total outcome. Not much, you might think, but I had already nearly fallen out with the solicitors over their fees and I was giving my advisors an extremely hard time because the corporate adviser couldn’t see how I had already given more than an inch and the buyers were taking more than a mile. I was not going to let them win.
Tags: iss134 | azule | finance | Peter Savage 2
Contributing Author Peter Savage 2 Click to read or download PDF
An Obituary to Timecode
Bruce Devlin - new A stoic and persistent character that stubbornly refused to change with the times, Timecode has finally passed on, but no-one has noticed. A long-lasting industry veteran, Timecode was brought into this world at an uncertain date in the late 1960s due to the needs of analogue tape workflows and the demand for synchronisation between audio and video devices. A joint activity between SMPTE and the EBU led to the work on Time and Control codes starting its journey to standardisation in the early 1970s.
Tags: iss134 | timecode | smpte | ebu | edit | Bruce Devlin - new
Contributing Author Bruce Devlin - new Click to read
The Wireless Way to 4k
JP Delport DTC’s AEON group of products have been specifically designed for the 4K market. We encode with the more efficient HEVC algorithm, which means we are taking a 12G signal and compressing it to a bitrate that can be managed over an RF link. So what makes this a leading idea in the 4K revolution?
Tags: iss134 | wireless | 4k | transmission | JP Delport
Contributing Author JP Delport Click to read or download PDF
GoPro HERO 7 Review
Tim Bearder When I heard I was filming a nature restoration project in the pouring rain this week I was excited. WHY? No Cameraman enjoys the rain, surely but this time I was enthusiastic because I knew this would be the perfect opportunity to try out the brand new GoPro Hero 7 Black Edition.
Tags: iss134 | gopro | hero 7 | review | liberal media | Tim Bearder
Contributing Author Tim Bearder 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