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15 April 2010 Improve online boosting algorithm from self-learning cascade classifier
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Abstract
Online boosting algorithm has been used in many vision-related applications, such as object detection. However, in order to obtain good detection result, combining a large number of weak classifiers into a strong classifier is required. And those weak classifiers must be updated and improved online. So the training and detection speed will be reduced inevitably. This paper proposes a novel online boosting based learning method, called self-learning cascade classifier. Cascade decision strategy is integrated with the online boosting procedure. The resulting system contains enough number of weak classifiers while keeping computation cost low. The cascade structure is learned and updated online. And the structure complexity can be increased adaptively when detection task is more difficult. Moreover, most of new samples are labeled by tracking automatically. This can greatly reduce the effort by labeler. We present experimental results that demonstrate the efficient and high detection rate of the method.
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Dapeng Luo, Nong Sang, Rui Huang, and Xiaojun Tong "Improve online boosting algorithm from self-learning cascade classifier", Proc. SPIE 7701, Visual Information Processing XIX, 77010R (15 April 2010); https://doi.org/10.1117/12.849614
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