Eulerian video magnification for revealing subtle changes in the world

TLDR

The study aims to make subtle temporal variations in videos visible and interpretable. Eulerian Video Magnification processes a standard video by spatial decomposition, temporal filtering, and signal amplification to reveal hidden motion. The technique successfully visualizes facial blood flow, amplifies minute motions, and operates in real time to display user‑selected temporal phenomena.

Abstract

Our goal is to reveal temporal variations in videos that are difficult or impossible to see with the naked eye and display them in an indicative manner. Our method, which we call Eulerian Video Magnification, takes a standard video sequence as input, and applies spatial decomposition, followed by temporal filtering to the frames. The resulting signal is then amplified to reveal hidden information. Using our method, we are able to visualize the flow of blood as it fills the face and also to amplify and reveal small motions. Our technique can run in real time to show phenomena occurring at the temporal frequencies selected by the user.