Essential Guide: Live HDR Down-Conversion

September 9th 2019 - 01:50 PM
Tony Orme, Editor at The Broadcast Bridge

Live sports productions are the natural home for HDR. The increase in luminance latitude combined with extended color space delivers an immersive experience never before witnessed by the home viewer. But backwards compatibility must still be maintained for legacy SDR audiences.

In this Essential Guide we delve deep into the HDR to SDR down-conversion process to understand the optimal strategies for simultaneously delivering HDR and SDR transmissions. For example, should we expose for HDR or SDR? And why does it matter?

HDR down-conversion may at first seem like an easy task. But the complex interactions of contrast, color, and the human visual system (HVS) soon expose the intricacies of deriving SDR from HDR. To avoid dual workflows and spiraling costs, automation is key to delivering simultaneous real-time HDR and SDR workflows.

This Essential Guide digs deep into tone mapping operators (TMOs) to understand how they work and the different parameters needed to satisfy the contrast dependent HVS. S-Curves, logarithmic transfer functions and bit conversion are all explored to gain a better understanding of the real-time HDR to SDR down-conversion.

Sponsors Lynx Technik provide an in depth discussion of how to overcome the practical challenges of real-time HDR to SDR down-conversion. Collaborating with the RheinMain University of Applied Sciences, Lynx Technik demonstrate how their real-time adaptive algorithms, based on research from the university, provide outstanding HDR to SDR down-conversions.

Download this Essential Guide now to understand the challenges of real-time HDR-SDR conversion. Understand the complexities of the HVS interaction with HDR down-conversion. And master the TMO and its applications in real-time live sports productions.

This Essential Guide is a must for anybody looking to build and install HDR and SDR workflows. It’s essential for broadcast engineers and creatives alike. Download this Essential Guide now.

Supported by

You might also like...

BT Sport’s Live VR 360 Coverage Of Premier League Brings Fans Closer To The Action

While the merits of 8K delivery is being debated by broadcasters around the world, some are moving forward with plans to deploy the high resolution quality in creative ways that engage viewers and encourage them to interact with a live…

PTP V2.1 – New Security & Monitoring For IP Broadcast Infrastructures - Part 2

In the last article in this series, we looked at how PTP V2.1 has improved security. In this part, we investigate how robustness and monitoring is further improved to provide resilient and accurate network timing.

Field Report: NewTek Spark Plus 4K

NDI (Network Device Interface) is a free protocol for Video over IP, developed by NewTek. The key word is “free.”

NAB 2021 Cancelled

NAB have announced the show scheduled for October 2021 has been cancelled.

PTP V2.1 – New Security & Monitoring For IP Broadcast Infrastructures - Part 1

Timing accuracy has been a fundamental component of broadcast infrastructures for as long as we’ve transmitted television pictures and sound. The time invariant nature of frame sampling still requires us to provide timing references with sub microsecond accuracy.