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2013 | OriginalPaper | Buchkapitel

A Study on Object Contour Tracking with Large Motion Using Optical Flow and Active Contour Model

verfasst von : Jin-Woo Choi, Taek-Keun Whangbo, Nak-Bin Kim

Erschienen in: Information Technology Convergence

Verlag: Springer Netherlands

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Abstract

In this study, an object contour tracking method is proposed for an object with large motion and irregular shapes in video sequences. To track object contour accurately, an active contour model was used, and the initial snake point of the next frame is set by calculating an optical flow of feature points with changing curvature in the object contour tracked from the previous frame. Here, any misled optical flow due to irregular changes in shapes or fast motion was filtered by producing an edge map different from the previous frame, and as a solution to the energy shortage of objects with complex contour, snake points were added according to partial curvature for better performance. Findings from experiments with real video sequences showed that the contour of an object with large motion and irregular shapes was extracted precisely.

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Metadaten
Titel
A Study on Object Contour Tracking with Large Motion Using Optical Flow and Active Contour Model
verfasst von
Jin-Woo Choi
Taek-Keun Whangbo
Nak-Bin Kim
Copyright-Jahr
2013
Verlag
Springer Netherlands
DOI
https://doi.org/10.1007/978-94-007-6996-0_113

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