How Does Luma Work
What is photosensitive epilepsy?
This is when you have a seizure straightaway, caused by being exposed to flashing lights or patterns. An electroencephalogram EEG can help with diagnosis, and may include testing for photosensitive epilepsy. This involves looking at a light which will flash at different speeds. If this causes any changes in brain activity, the technician can stop the flashing light before a seizure develops.
What rate of flashing light can trigger seizures?
Between 3-50 hertz (flashes per second) are the common rates to trigger seizures but this varies from person to person. While some people are sensitive at frequencies up to 60 hertz, sensitivity under 3 hertz is not common.
What patterns can trigger seizures?
Some people are sensitive to geometric patterns with contrasts of light and dark such as stripes or bars. Patterns are more likely to be a trigger if they are changing direction or flashing, rather than if they are still or moving slowly in one direction.
Flashing, flickering or patterned effects can make people with or without epilepsy feel disorientated, uncomfortable or unwell. This does not necessarily mean they have photosensitive epilepsy.
What is Luma?
Luma is a powerful, consistent and accurate flashing analysis engine, it can identify photosensitive epilepsy seizure triggers, and test for compliance with international guidelines on flashing in video content including ITU-R and WCAG Success Criteria 2.3.1
How does Luma detect seizure triggers?
Luma does a frame by frame analysis by extracting the color data to calculate the luminance and saturation values to identify the flashing intervals