Before revision:  We introduce two methods. The first, HYPE-Time, measures visual perception under adaptive time constraints to determine the minimum length of time (e.g. , 250ms) that model output such as a generated face needs to be visible for people to distinguish it as real or fake.
After revision:  We introduce two variants: one that measures visual perception under adaptive time constraints to determine the minimum length of time (e.g. , 250ms) that model output such as a generated face needs to be visible for people to distinguish it as real or fake.