In this age of ever-increasing video resolutions, 4K (also known as UHD or Ultra HD) technology has moved into the spotlight. 4K/UHD resolution offers considerable value in control room and audiovisual environments that require the highest level of visual clarity. Delivering 3840x2160 (8.3 million) pixels per display, it significantly enhances an operator’s ability to monitor and analyze finely detailed imagery.

The initial sections of this primer present an overview of 4K resolution and explore some technical considerations related to the deployment of 4K video processing and display technologies. The latter sections discuss the many ways in which RGB Spectrum video processors deal with 4K and UHD signals.