"The system works by homing in on specific pixels in a video over the course of time. Frame-by-frame, the program identifies minute changes in color and then amplifies them up to 100 times, turning, say, a subtle shift toward pink to a bright crimson"

So really the title should be "Scientist amplify motion in video" - because that is what is occurring. There is nothing "invisible" being discovered - it still needs a visual change.