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Presented by Romain Thibaux, Benson Limketkai

Simulating Virtual Human Crowds with a Leader-Follower Model Tsai-Yen Li, Ying-Juin Jeng, Shih-I Chang National Chengchi University. Presented by Romain Thibaux, Benson Limketkai. Collision Detection. Path Planning. Planning for Two. 1. 2. 1. 2. 1. 2. Planning for Two. 1. 2.

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Presented by Romain Thibaux, Benson Limketkai

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  1. Simulating Virtual Human Crowds with a Leader-Follower ModelTsai-Yen Li, Ying-Juin Jeng, Shih-I ChangNational Chengchi University Presented by Romain Thibaux, Benson Limketkai

  2. Collision Detection

  3. Path Planning

  4. Planning for Two 1 2

  5. 1 2

  6. 1 2

  7. Planning for Two 1 2

  8. Planning for More

  9. Motion of the Followers Repulsion Cohesion Alignment Obstacles Leader

  10. Motion of the Followers

  11. Model shape of crowds Plan for crowds with shape model Motion Planning For Multiple Crowds

  12. Crowd Region Estimation • “longitudinal depth”

  13. Example of Crowd Region Estimation

  14. Example

  15. Implementations and Experiments • “planning time … is usually fractions of a second” • “planning times … are 500ms and 2000ms … on a consideredlow-end PC”

  16. Planning Time (ms)

  17. Screen Dump??

  18. Conclusions • Planning system for generating coordinated “gross motions” for multiple crowds • Planner features: • Crowd shape estimation module • Integrated view of crowd motion planning • Efficient (?) implementation of search routines • Applications in shared virtual environments and computer animation

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