But that imprint would be static. It would be a nightmare to go from a static imprint to a time series of some kind. Even in the article, they were analysing vi

But that imprint would be static. It would be a nightmare to go from a static imprint to a time series of some kind. Even in the article, they were analysing video, whereby the diffs from one moment to the next could be captured. I bet that as the length of video decreases (become a static picture in the limit), so would the useful output from their algorithm.