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ll eigenface : l Viola-Jones

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Viola-Jones

Haar

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lAdaBoost

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Integral Image

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l (A+B+C+D) (A+C) (A+B) + A = D

AdaBoost

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Slide Set 12: Face Detection/Viola-Jones 6 CS 175, Fall 2007: Professor Padhraic Smyth

Boosting Example

Slide Set 12: Face Detection/Viola-Jones 7 CS 175, Fall 2007: Professor Padhraic Smyth

First classifier

Slide Set 12: Face Detection/Viola-Jones 8 CS 175, Fall 2007: Professor Padhraic Smyth

First 2 classifiers

Slide Set 12: Face Detection/Viola-Jones 9 CS 175, Fall 2007: Professor Padhraic Smyth

First 3 classifiers

Slide Set 12: Face Detection/Viola-Jones 10 CS 175, Fall 2007: Professor Padhraic Smyth

Final Classifier learned by Boosting

Viola-Jones l

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l OKAO Visionl l l Apple (iPhoto)

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lViola-Jones

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