HDR

On-demand Webinar: Setting scope waveform levels in HDR

Posted on by Russell Trafford-Jones


This webinar looks at
How to capture light’s High Dynamic Range (better pixels rather than more pixels)
Setting the new HDR scope levels compared to typical SDR (where to set 90% white or 18% grey)
Camera formats and scene exposure adjustment
Artistic level grading for HDR and SDR displays

Michael Waidson from Tektronix, explains the above and digs in to why, as the average luminance level of HDR and SDR should not be that different, a new and more simple scope waveform scale is required. This new scale will ensure preservation of blacks and highlights, as well as artistic adjustments simultaneously for SDR and HDR.

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Meeting: Are Existing Broadcast Formats Suitable for HDR WCG Content?

Posted on by Russell Trafford-Jones


Date: Thursday November 30, 2017 – Ample Refreshments from 18:15 GMT for 19:00 start.
Location: Ericsson Television, Strategic Park, Comines Way, Hedge End, Southampton, SO30 4DA. Google Maps

With higher resolution, wider colour gamut and extended dynamic range, the new Ultra High Definition TV (UHD) standards define a container which allows content creators to offer the consumer a much more immersive visual experience. However there are some artefacts noted within the container particularly around HDR material. Olie Bauman outlines why YCrCb are used and the human vision systems response to changes in chroma/luminance and the correlation between R, G and B

As HDR and WCG expand the Colour Volumes he will show why these increased from SD (601) to HD (709) to UHD (2020) and show the difference between PQ (Display Referred) and HLG (Scene Referred) workflows

From this background he will show examples of artefacts due to chroma down-sampling and show the different characteristics – depending on work flow.

He highlights that the problems will become greater as more content exploiting the full UHD container becomes available, requiring additional care and processing in content production and delivery.

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On-Demand: DVB UHD HDR Webinar

Posted on by Russell Trafford-Jones


On-Demand Webinar

DVB recently updated its audio-visual coding specification, adding support for High Dynamic Range (HDR), Higher Frame Rates (HFR) and Next Generation Audio (NGA). You can now learn all about the new features in a webinar by the editor of this impressive specification, Virginie Drugeon (Panasonic) on January 18th, 2017. The webinar and Q&A time should take around 1 hour. You can send your questions by the Webex chat function during the webinar and questions will be answered in a few blocks during the webinar.

The specification update has been published as BlueBook A157 and will be passed to ETSI for formal publication as TS 101 154 v2.3.1.

High Dynamic Range (HDR) significantly increases the contrast ratio and results in pictures with more ‘sparkle’. The DVB HDR solution supports Hybrid Log Gamma (HLG) and Perceptual Quantizer (PQ) transfer functions. Furthermore, the new specification defines Higher Frame Rates (HFR), offering sharper images of moving objects by going beyond the current 50/60 frames per second. When it comes to audio, DVB has added the latest Next Generation Audio (NGA) schemes to provide immersive and personalized audio content using object- or scene-based coding.

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Webinar: DASH—New Advancements in DASH Media Delivery

Posted on by Russell Trafford-Jones


Webinar: WEDNESDAY, OCTOBER 18, 2017 – 11:00AM PT / 2:00PM ET / 19:00 BST
In this webinar, we will present the latest MPEG and DASH-IF advancements on DASH. We will cover new additional standard tools for OTT, DASH support for VR/360° video delivery, low-latency DASH streaming, DRM, and the DASH-IF guidelines for streaming UHD/HDR content.
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