There is a simpler device, a glass plate with the alphabet held between the patient and the other person. Humans are extraordinary good at following someone's glance, and this is how a quadriplegic patient can spell out words. Franz Rosenzweig used such a thing in his last years.
It's surprising that no one has used a camera plus ML whizzo stuff including predictive text to speed up the process.
Haha, for typical use with Synchron’s device they are using eye-tracking. The BCI-only mode is just for research purposes/baseline. It’s also just what’s in the paper, they may implement other UIs in practice.
It's surprising that no one has used a camera plus ML whizzo stuff including predictive text to speed up the process.