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Unusual Activity in Video

Unusual Activity in Video. Presented by wei pan. Blackjack. Video. Keywords for Video. Left to Middle: Middle to Right:. Derivative Filters in 1 Minute. Signal. *. Gt. Keywords for Video. Left to Middle: Middle to Right:. Histogram. Keywords for Video. Co- occurance Matrix. CP.

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Unusual Activity in Video

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  1. Unusual Activity in Video Presented by wei pan

  2. Blackjack

  3. Video

  4. Keywords for Video Left to Middle: Middle to Right:

  5. Derivative Filters in 1 Minute Signal * Gt

  6. Keywords for Video Left to Middle: Middle to Right: Histogram

  7. Keywords for Video

  8. Co-occurance Matrix

  9. CP • Why not clustering on C? • Intuition Behind

  10. Embedding • Embedding • Given some points, define weights between any two points. • Given a plane, for each point, find a place to place it. • So that, in the plane, a pair of points has higher weights are closer.

  11. Embedding

  12. Co-embedding (See EigenMap): • Nodes: all prototypes and video segments • Weight between each node: • W(Prototype, node) • W(Prototype, Prototype)

  13. W(Prototype, Prototype)

  14. K-Means • Inter-Cluster Similarity • Unusual cluster has small Inter-Cluster Similarity

  15. Questions & Ideas • Thank you………………………………..

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