A ROBUST BACKGROUND SUBTRACTION ALGORITHM USING THE A ∑-∆ ESTIMATION - Applied to the Visual Analysis of Human Motion

Juan Carlos León, Fabio Martínez, Eduardo Romero

2012

Abstract

This paper introduces a novel method for segmenting the human silhouette in video sequences, based on a local version of the classical SD filter. A main difference of our approach is that the filter is not pixelwise oriented, but rather region wise adjusted by using scaled estimations of both the pixel intensity and the horizontal (vertical) gradient, i.e., a multiresolution wavelet decomposition using Haar functions. The classical SD filter is independently applied to each component of the obtained feature vector, previously normalized and a single scalar value is associated to the pixel by averaging the feature vector components. The background is estimated by setting a threshold in a histogram constructed with these integrated values, attempting to maximize the interclass variance. This strategy was evaluated in a set of 6 videos, taken from the Human Eva data set. Results show that the proposed algorithm provides a better segmentation of the human silhouette, specially in the limbs, which are critical for human movement analysis.

References

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Paper Citation


in Harvard Style

Carlos León J., Martínez F. and Romero E. (2012). A ROBUST BACKGROUND SUBTRACTION ALGORITHM USING THE A ∑-∆ ESTIMATION - Applied to the Visual Analysis of Human Motion . In Proceedings of the International Conference on Computer Vision Theory and Applications - Volume 1: VISAPP, (VISIGRAPP 2012) ISBN 978-989-8565-03-7, pages 484-489. DOI: 10.5220/0003868204840489


in Bibtex Style

@conference{visapp12,
author={Juan Carlos León and Fabio Martínez and Eduardo Romero},
title={A ROBUST BACKGROUND SUBTRACTION ALGORITHM USING THE A ∑-∆ ESTIMATION - Applied to the Visual Analysis of Human Motion},
booktitle={Proceedings of the International Conference on Computer Vision Theory and Applications - Volume 1: VISAPP, (VISIGRAPP 2012)},
year={2012},
pages={484-489},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0003868204840489},
isbn={978-989-8565-03-7},
}


in EndNote Style

TY - CONF
JO - Proceedings of the International Conference on Computer Vision Theory and Applications - Volume 1: VISAPP, (VISIGRAPP 2012)
TI - A ROBUST BACKGROUND SUBTRACTION ALGORITHM USING THE A ∑-∆ ESTIMATION - Applied to the Visual Analysis of Human Motion
SN - 978-989-8565-03-7
AU - Carlos León J.
AU - Martínez F.
AU - Romero E.
PY - 2012
SP - 484
EP - 489
DO - 10.5220/0003868204840489