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Eulerian Video Magnification for Revealing Subtle Changes in the World

Eulerian Video Magnification for Revealing Subtle Changes in the World. Hao -Yu Wu, Michael Rubinstein, Eugene Shih, John Guttag , Frédo Durand, William Freeman SIGGRAPH 2012. Outline. Video magnification Lagrangian vs. Eulerian perspective Lagrangian video magnification

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Eulerian Video Magnification for Revealing Subtle Changes in the World

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  1. Eulerian Video Magnification for Revealing Subtle Changes in the World Hao-Yu Wu, Michael Rubinstein, Eugene Shih, John Guttag, Frédo Durand, William Freeman SIGGRAPH 2012

  2. Outline • Video magnification • Lagrangian vs. Eulerian perspective • Lagrangian video magnification • Eulerian video amplification • Project idea

  3. Contact-free heartbeat detection http://www.youtube.com/watch?v=e9ASH8IBJ2U&t=1m19s

  4. Lagrange vs Euler

  5. Lagrangian video processing

  6. Lagrangian motion amplification

  7. Lagrangian motion amplification

  8. Eulerian video processing

  9. Eulerian motion amplification http://www.youtube.com/watch?v=e9ASH8IBJ2U&t=2m16s

  10. http://www.youtube.com/watch?v=ONZcjs1Pjmk&t=3m30s

  11. Spatial decomposition(Laplacian pyramid)

  12. Temporal filtering http://www.youtube.com/watch?v=ONZcjs1Pjmk&t=2m57s

  13. Reconstruction

  14. Summary • Real-time • Amplifies intensity changes • Special case: can amplify small motions • Large artifacts when amplifying motion

  15. Project idea? (Kain et al, 2007)

  16. Transform to increase intelligibility

  17. Transform to increase reproducible variance

  18. ?

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