Research & Development

Abstract

Now that standards for a complete high dynamic range (HDR) television ecosystem are complete, the industry is taking its first steps in HDR production. HDR is associated not only with a greater dynamic range, but also brighter screens than conventional television, so the potential arises for unwanted, uncomfortable brightness jumps at programme junctions and channel changes. To ensure a degree of consistency between programmes, some production guidelines for HDR brightness are required.

In this paper, we summarise tests showing that the mean displayed pixel luminance is a good predictor of subjective brightness. We then explore viewer tolerance to brightness shifts of different sizes, and propose a potential normal operating range for the mean display luminance of 10–80 cd/m² extending to 5–160 cd/m² for special creative effect.

This paper was originally published in the IBC Conference, Amsterdam, The Netherlands, September 2017. It has been updated to reflect developments in HDR standards since the original publication.

This publication is part of the Broadcast and Connected Systems section

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