# Simultaneous Estimation of Optical Flow and Its Boundaries based on the Dynamical System Model

### Yuya Michishita, Noboru Sebe, Shuichi Enokida, Eitaku Nobuyama

#### Abstract

Optical flow is a velocity vector which represents the motion of objects in video images. Optical flow estimation is difficult in the neighborhood of flow boundary. To resolve this problem, Sasagawa (2014) proposes a modified dynamical system model in which one assumes that, in the neighborhood of flow boundaries, the brightness flows in the perpendicular direction, and considers the resulting corrections to the brightness constancy constraint. However, in that model, the correction is occurred even in place where the flow is continuous. We propose a new model, which switches the conventional model and the proposed model in Sasagawa (2014). As a result, we expect improvement of the estimate accuracy in place where the flow is continuous. We conduct numerical experiments to investigate the improvements that the proposed model yields in the estimation accuracy of optical flows.

#### References

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#### Paper Citation

#### in Harvard Style

Michishita Y., Sebe N., Enokida S. and Nobuyama E. (2017). **Simultaneous Estimation of Optical Flow and Its Boundaries based on the Dynamical System Model** . In *Proceedings of the 12th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications - Volume 6: VISAPP, (VISIGRAPP 2017)* ISBN 978-989-758-227-1, pages 377-385. DOI: 10.5220/0006101303770385

#### in Bibtex Style

@conference{visapp17,

author={Yuya Michishita and Noboru Sebe and Shuichi Enokida and Eitaku Nobuyama},

title={Simultaneous Estimation of Optical Flow and Its Boundaries based on the Dynamical System Model},

booktitle={Proceedings of the 12th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications - Volume 6: VISAPP, (VISIGRAPP 2017)},

year={2017},

pages={377-385},

publisher={SciTePress},

organization={INSTICC},

doi={10.5220/0006101303770385},

isbn={978-989-758-227-1},

}

#### in EndNote Style

TY - CONF

JO - Proceedings of the 12th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications - Volume 6: VISAPP, (VISIGRAPP 2017)

TI - Simultaneous Estimation of Optical Flow and Its Boundaries based on the Dynamical System Model

SN - 978-989-758-227-1

AU - Michishita Y.

AU - Sebe N.

AU - Enokida S.

AU - Nobuyama E.

PY - 2017

SP - 377

EP - 385

DO - 10.5220/0006101303770385