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...

Practical High Dynamic Range (HDR) Broadcast Workflows - Part 2

There is a school of thought that suggests increasing the brightness through the contrast control on a television will give a higher dynamic range. However, this doesn’t necessarily increase the contrast ratio. Quantization noise is the enemy of dynamic r…

Practical High Dynamic Range (HDR) Broadcast Workflows - Part 1

HDR is taking the broadcasting world by storm. The combination of a greater dynamic range and wider color gamut is delivering images that truly bring the immersive experience to home viewers. Vibrant colors and detailed specular highlights build a kind…

Creative Analysis: Part 17 - DOP Simon Rowling On Legacy Of Lies

Some films languish in preproduction hell for years. For cinematographer Simon Rowling, though, only a matter of days elapsed between first discussing Legacy of Lies and flying out to begin location scouting. The production, which stars Scott Adkins as a…

WFH: Tech Choices From Edit To Approval

You have two key choices for remote technologies: those that give you remote access into machines and devices at your facility or those based in the cloud. Depending on your needs it may be sensible to take a mixed approach.

WFH: Baby Steps And Lasting Legacy

Until very recently, the idea that editors and VFX artists could work remotely from one another seemed a far-off reality. Yet, Work From Home measures mean media companies have had to pivot overnight to a remote work setup. Content creation…