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Incremental learning of novel activity categories from videos

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4 Author(s)
Ryoo, M.S. ; Robot/Cognition Res. Dept., Electron. & Telecommun. Res. Inst., Daejeon, South Korea ; Jihoon Joung ; Sunglok Choi ; Wonpil Yu

We present a methodology for learning novel human activities incrementally. In many real-world scenarios (e.g. YouTube), new videos of novel activities are provided additively, and the system must incrementally adjust its activity models rather than retraining the entire system after each addition. We introduce our incremental codebook learning algorithm for an efficient mining of important visual words for human activities, and propose a method that incrementally trains activity models using them. The experimental results show that our approach successfully learns human activities from increasing number of training videos, while maintaining its recognition performance comparable to previous non-incremental systems.

Published in:

Virtual Systems and Multimedia (VSMM), 2010 16th International Conference on

Date of Conference:

20-23 Oct. 2010