Rapid object detection using a boosted cascade of simple features

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Rapid object detection using a boosted cascade of simple features (2001)

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by Paul Viola , Michael Jones

Venue:	ACCEPTED CONFERENCE ON COMPUTER VISION AND PATTERN RECOGNITION 2001
Citations:	3225 - 9 self

BibTeX

@MISC{Viola01rapidobject,
    author = {Paul Viola and Michael Jones},
    title = {Rapid object detection using a boosted cascade of simple features },
    year = {2001}
}

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Abstract

This paper describes a machine learning approach for visual object detection which is capable of processing images extremely rapidly and achieving high detection rates. This work is distinguished by three key contributions. The first is the introduction of a new image representation called the "Integral Image" which allows the features used by our detector to be computed very quickly. The second is a learning algorithm, based on AdaBoost, which selects a small number of critical visual features from a larger set and yields extremely efficient classifiers[6]. The third contribution is a method for combining increasingly more complex classifiers in a "cascade" which allows background regions of the image to be quickly discarded while spending more computation on promising object-like regions. The cascade can be viewed as an object specific focus-of-attention mechanism which unlike previous approaches provides statistical guarantees that discarded regions are unlikely to contain the object of interest. In the domain of face detection the system yields detection rates comparable to the best previous systems. Used in real-time applications, the detector runs at 15 frames per second without resorting to image differencing or skin color detection.

Keyphrases

simple feature rapid object detection skin color detection image differencing visual object detection third contribution complex classifier key contribution background region integral image high detection rate object specific focus-of-attention mechanism critical visual feature real-time application machine learning approach small number efficient classifier statistical guarantee face detection learning algorithm object-like region new image representation previous approach previous system detection rate

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