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Efficient Part-Based Recognition of Multiple Object Classes

Efficient Part-Based Recognition of Multiple Object Classes. Object Class Recognition Systems. Model Representation. 2. Object Class Recognition Systems. Model Representation Learning Algorithm. 3. Object Class Recognition Systems. Model Representation Learning Algorithm

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Efficient Part-Based Recognition of Multiple Object Classes

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  1. Efficient Part-Based Recognition of Multiple Object Classes

  2. Object Class Recognition Systems • Model Representation 2

  3. Object Class Recognition Systems • Model Representation • Learning Algorithm 3

  4. Object Class Recognition Systems • Model Representation • Learning Algorithm • Recognition Algorithm 4

  5. Object Class Recognition Systems • Model Representation • Part-based model • Learning Algorithm • Recognition Algorithm 5

  6. Object Class Recognition Systems • Model Representation • Part-based model • Part appearance • Learning Algorithm • Recognition Algorithm 6

  7. Object Class Recognition Systems • Model Representation • Part-based model • Part appearance • Part position • Learning Algorithm • Recognition Algorithm 7

  8. Object Class Recognition Systems • Model Representation • Part-based model • Part appearance • Part position • Learning Algorithm • Recognition Algorithm 8

  9. History of Part-BasedObject Recognition Hoffman 1999 Bag of Parts Crandall et al. 2005, 2006 k-Fans Proposed Algorithm Template Matching Part-Based Burl et al. 1998 Constellation Model Fergus et al. 2003, 2005 9

  10. BoP k-Fan this Templ Part Const Template Matching 10

  11. BoP k-Fan this Templ Part Const Template Matching 11

  12. BoP k-Fan this Templ Part Const Template Matching 12

  13. BoP k-Fan this Templ Part Const Template Matching 13

  14. BoP k-Fan this Templ Part Const Template Matching 14

  15. BoP k-Fan this Templ Part Const Template Matching 15

  16. BoP k-Fan this Templ Part Const Template Matching 16

  17. BoP k-Fan this Templ Part Const Template Matching 17

  18. BoP k-Fan this Templ Part Const Template Matching 18

  19. BoP k-Fan this Templ Part Const Template Matching 19

  20. BoP k-Fan this Templ Part Const Template Matching 20

  21. BoP k-Fan this Templ Part Const Template Matching 21

  22. BoP k-Fan this Templ Part Const Template Matching 22

  23. BoP k-Fan this Templ Part Const Template Matching 23

  24. BoP k-Fan this Templ Part Const Template Matching 24

  25. BoP k-Fan this Templ Part Const Template Matching max 25

  26. BoP k-Fan this Templ Part Const Template Matching 26

  27. BoP k-Fan this Templ Part Const Template Matching 27

  28. BoP k-Fan this Templ Part Const Template Matching • Efficient? (N = # pixels) 28

  29. BoP k-Fan this Templ Part Const Template Matching • Efficient? (N = # pixels) – Yes, O(N) 29

  30. BoP k-Fan this Templ Part Const Template Matching • Efficient? (N = # pixels) – Yes, O(N) • Robust? 30

  31. BoP k-Fan this Templ Part Const Template Matching • Efficient? (N = # pixels) – Yes, O(N) • Robust? 31

  32. BoP k-Fan this Templ Part Const Template Matching • Efficient? (N = # pixels) – Yes, O(N) • Robust? 32

  33. BoP k-Fan this Templ Part Const Template Matching • Efficient? (N = # pixels) – Yes, O(N) • Robust? 33

  34. BoP k-Fan this Templ Part Const Template Matching • Efficient? (N = # pixels) – Yes, O(N) • Robust? 34

  35. BoP k-Fan this Templ Part Const Template Matching • Efficient? (N = # pixels) – Yes, O(N) • Robust? 35

  36. BoP k-Fan this Templ Part Const Template Matching • Efficient? (N = # pixels) – Yes, O(N) • Robust? – No, inflexible 36

  37. BoP k-Fan this Templ Part Const Template vs. Part-Based Robust Efficient Trade-off 37

  38. BoP k-Fan this Templ Part Const Part-Based 38

  39. BoP k-Fan this Templ Part Const Part-Based 39

  40. BoP k-Fan this Templ Part Const Part-Based 40

  41. BoP k-Fan this Templ Part Const Part-Based 41

  42. BoP k-Fan this Templ Part Const Part-Based 42

  43. BoP k-Fan this Templ Part Const Part-Based • Part appearance (template matching) 43

  44. BoP k-Fan this Templ Part Const Part-Based • Part appearance (template matching) • Part location (fully connected) 44

  45. BoP k-Fan this Templ Part Const Part-Based 45

  46. BoP k-Fan this Templ Part Const Part-Based 46

  47. BoP k-Fan this Templ Part Const Part-Based 47

  48. BoP k-Fan this Templ Part Const Part-Based 48

  49. BoP k-Fan this Templ Part Const Part-Based 49

  50. BoP k-Fan this Templ Part Const Part-Based 50

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