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Face Detection Based On Machine Learning

Posted on:2007-10-22Degree:MasterType:Thesis
Country:ChinaCandidate:K H WangFull Text:PDF
GTID:2178360182996099Subject:Software engineering
Abstract/Summary:PDF Full Text Request
Currently,The face detection technologies are more and more attended byacademia and industry,which is the emerging subjects from the last century inthe 1980s and is very strong development momentum in recent years.Becauseof its security access control,visual detection,identification,intelligentcomputer applications are useful to the world,it began as an independentsubject in people's vision.After the predecessors of continuous learning and hard work,manyalgorithms are published,not only to deal with alone face of one image,manyfaces of one image,face multiple ways testing, but also to dynamic (videodocuments or video) images for the face detection and tracking.Face detectionmethods generally can be divided into the following types:statistical models,template matching models,based on the characteristics and so on.Currentlythe AdaBoost algorithm is more popular,which is the most effective algorithm,this article is a paper that based on the use of AdaBoost algorithm.This article is one about human face detection,which based on themachine learning.The mainly algorithm is the AdaBoost algorithm.TheAdaBoost algorithm is an adaptive algorithm which evolve from the Boostingalgorithm.It is one kind of classifier algorithm. Its basic thought is that using amass of simple classifier which has common classified ability and through thecertain method,at last,Constitutes a very strong classifier which has strongclassified ability.Carries on many times with this strong classifier to the goalpictures,finally confirmed the pictures whether includes the human face andits the general position.This algorithm uses a characteristic which called Haar characteristic.Thischaracteristic is one kind of simple rectangular characteristic,because it issimilar with the Haar wavelet,so called Haar characteristic.This kind ofcharacteristic is composed of two or many rectangles that are congruent andneighboring.There are white and black kinds of rectangles in the characteristictemplate, and defines this characteristic template characteristic value as thewhite rectangle.This characteristic value is that the difference between white...
Keywords/Search Tags:Detection
PDF Full Text Request
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