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Keyframe-based Tracking for Rotoscoping & Animation

Keyframe-based Tracking for Rotoscoping & Animation. Aseem Agarwala 1 , Aaron Hertzmann 2 , Steve Seitz 1 , David Salesin 1,3. 1 University of Washington. 2 University of Toronto. 3 Microsoft Research. Animator Max Fleischer, patent application, 1917. Disney’s Sleeping Beauty, 1959.

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Keyframe-based Tracking for Rotoscoping & Animation

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  1. Keyframe-based Tracking for Rotoscoping & Animation Aseem Agarwala1, Aaron Hertzmann2, Steve Seitz1, David Salesin1,3 1University of Washington 2University of Toronto 3Microsoft Research

  2. Animator Max Fleischer, patent application, 1917

  3. Disney’s Sleeping Beauty, 1959

  4. Waking Life, 2001 Roughly 250 hours of work per minute of animation

  5. Rotoscoping for visual effects Commercial tools such as Commotion, Shake, gFx Pro, etc…

  6. Current state of rotoscoping • Can consume up to 20% of human time required for a special effects shot • Keyframing + linear interpolation • Computer vision tracking techniques rarely used • Not robust • Not designed for artist control

  7. Goal • Dramatically reduce time and effort of rotoscoping Approach • Interactive rotoscoping system • Uses tracking to accelerate when possible • Leaves artist in full control • Help artist to create rotoscoped animation quickly and easily

  8. Rotoscoping results

  9. Original sequence

  10. Rotoscoped

  11. Visualizing effort Computer- interpolated User- specified

  12. Effort

  13. Original sequence

  14. Rotoscoped

  15. Effort

  16. Original Sequence

  17. Rotoscoped

  18. Effort

  19. Creating animation Goals • Artist can draw rich appearances • Strokes should follow motion of roto-curves

  20. Animation results

  21. Original sequence

  22. Animation 1

  23. Animation 2

  24. Original sequence

  25. Animation

  26. Visual effects results

  27. Original Sequence

  28. Lipstick Effect

  29. Tan Effect

  30. Original sequence

  31. Dream-world effect

  32. Original sequence

  33. Pink shirt & makeup effect

  34. Conclusion • Rotoscoping is important, but time-consuming and tedious • Rotoscopers rarely use tracking • Our approach combines vision with user interaction • Use tracking to accelerate • Efficiently support user-editing • Thanks to Alex Hsu, Siobhan Quinn, Lorie Loeb, Matt Silverman, David Simons, Industrial Light & Magic, Amira Fahoum, Ben Stewart

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