On this page you can download our Hidden Semi Markov Model (HSMM) based C++ software tool for detecting irregular camera events in time-multiplexed videos.
The tools for model training and segmentation are available here.

  1. Á. Utasi, Novel Probabilistic Methods for Visual Surveillance Applications, Doctoral School of Information Science and Technology, University of Pannonia, Veszprém, Hungary, January 2012 (PDF Details BibTeX)
  2. Á. Utasi, L. Czúni, "Detecting Irregular Camera Events in Time-Multiplexed Videos", Electronics Letters, Volume 45, Issue 18, pp. 937-939, 2009 (PDF,BibTeX)
  3. Á. Utasi, L. Czúni, "Analysis of Time-Multiplexed Security Videos", in Proc. of The 6th IEEE International Conference on Advanced Video and Signal Based Surveillance, pp. 547-552, Genoa, Italy, 2-4 September 2009 (PDF,BibTeX)

Source codes

HSMM-based tool (C++): download
Video for model training (xvid encoded avi): download
HSMM model after training: download
Video for testing the method (xvid encoded avi): download


Detected irregular events (device malfunction, manual camera control) are marked with red color.

Download: avi, webm, ogg, mp4


Ákos Utasi:

 /  Louis, I think this is the beginning   \
 \         of a beautiful FRIDAY!          /
        \   ,__,
         \  (oo)____
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