Online multiple instance boosting for object detection

Authors:
Zhiquan Qi;Yitian Xu;Laisheng Wang;Ye Song
Affiliations:
College of Science, China Agricultural University, Beijing 100083, PR China and Research Center on Fictitious Economy and Data Science, Chinese Academy of Sciences, Beijing 100190, PR China;College of Science, China Agricultural University, Beijing 100083, PR China;College of Science, China Agricultural University, Beijing 100083, PR China;College of Science, China Agricultural University, Beijing 100083, PR China
Venue:
Neurocomputing
Year:
2011

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Abstract

Semi-supervised or unsupervised, incremental learning approaches based on online boosting are very popular for object detection. However, in the course of online learning, since the positive examples labelled by the current classifier may actually not be ''correct'', the optimal weak classifier is unlikely to be selected by previous approaches. This would directly lead to a decline in algorithm performance. In this paper, we present an improved online multiple instance learning algorithm based on boosting (called OMILBoost) for object detection. It can pick out the real correct image patch around labelled example with high possibility and thus, avoid drifting problem effectively. Furthermore, our method shows high performance when dealing with partial occlusions. Effectiveness is experimentally demonstrated on six representative video sequences.