Harding Test is the de facto standard for Photosensitive Epilepsy (PSE) detection, from Cambridge Research Systems.

PSE is triggered by visual stimuli (light flashes, stroboscopic effects or flash photography) that overload the brain temporarily and cause a seizure. PSE affects about one in four thousand people. Cambridge Research Systems provides the most accurate and widely used implementation as part of their HardingFPA offering for detection of such visual patterns.

The new HardingFPA algorithm, with the inclusion of HDR capability, now accounts for the difference in brightness and color saturation introduced with the advent of HDR. Many media companies dealing with HDR content have been eagerly anticipating these enhancements in order to accurately validate their HDR content. They can now perform PSE risk analysis of their HDR-10 and Dolby Vision content with Pulsar; and receive a HardingFPA compliance certificate.

With the latest release of Pulsar (7.0), which includes the HardingFPA HDR PSE risk analysis, content creators, editors, broadcasters, studios, and post production houses can confidently verify that their HDR (as well as their SDR) content passes the Harding PSE test before final delivery.