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The Art and Science of Digital Compositing 김김김

120119 ch 7_time_and_temporal_manipulations

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  • 1. The Art and Science of Digital Compositing

2. Chapter 7Time and Temporal Manipulations 3. Agenda Apparent Motion Temporal Resolution Temporal Artifacts Changing the Length or Timing of a Sequence Keyframing3 4. Time and Temporal Manipulations , 4 5. Apparent Motion , , .Apparent motion Phi phenomenon Stroboscopic motion 5 6. Time and Temporal Manipulations6 7. Time and Temporal Manipulations7 8. Time and Temporal Manipulations frame motion , 8 9. Time and Temporal Manipulations Stroboscopic Camera / Picture 9 10. Apparent Motion Persistence of vision : Frame Rate Frame Rate : 16 fps 24fps 48fps 30fps 60fps 24 fps : 10 11. Apparent MotionApparent Persistence motion of vision , 11 12. Temporal Resolution Temporal Resolution : , temporal resolution = frame per second, fps 24fps Showscan : 70mm 1 60 fps , Temporal Resolution ( , ) : 24fps 48fps : , Length, , 12 13. Temporal Artifacts 13 14. Changing the Length or Timing of a Sequence Drop 2 , frame mixing() averaging( ) 14 15. Changing the Length or Timing of a Sequence15 16. Changing the Length or Timing of a Sequence frame 50/50 mix 1&2, 3&4, 5&6, 7&8, 9&10, 11&12, ... 1 2 2 1/2 Mix 16 17. Changing the Length or Timing of a Sequence Average 100% 50% 1&2, 3 , 4&5, 6, 7&8, 9, 10&11, 12, 13&14, 15, ...Frame 1,2 Frame 3 17 18. Changing the Length or Timing of a Sequence 18 19. Changing the Length or Timing of a Sequence19 20. Changing the Length or Timing of a Sequenceretiming curve20 21. Changing the Length or Timing of a Sequence Optical flow Analysis : ( ) frame Color : 21 22. Changing the Length or Timing of a Sequence Mix Optical flow22 23. Keyframing Linear interpolation Smooth curves interpolation 23 24. Q&A 25.