rapid object detection using a boosted cascade of simple features
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Rapid Object Detection using a Boosted Cascade of Simple Features. Author : Paul Viola, Michael Jones Conference on Computer Vision and Pattern Recognition 2001 Speaker : Liu, Yi- Hsien. Outline. Introduction Features Integral Image AdaBoost Cascade Conclusions. Introduction.

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rapid object detection using a boosted cascade of simple features

Rapid Object Detection using a Boosted Cascade of Simple Features

Author:Paul Viola, Michael Jones

Conference on Computer Vision and Pattern Recognition 2001

Speaker:Liu, Yi-Hsien

outline
Outline
  • Introduction
  • Features
  • Integral Image
  • AdaBoost
  • Cascade
  • Conclusions
introduction
Introduction

There are three main contribution of this paper:

  • Integral image
  • Contract classifiers by AdaBoost
  • Combine classifiers in a cascade structure
  • Viola–Jones object detection framework
features
Features
  • Harr-like Feature
integral image cont
Integral Image(Cont.)
  • 1=A
  • 2=A+B
  • 3=A+C
  • 4=A+B+C+D
  • A=1
  • B=2-1
  • C=3-1
  • D=4-2-3+1
adaboost
AdaBoost
  • Select a small set of features
  • Train the classifier
ad