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SnakeCut : an Integrated Approach Based on Active Contour and GrabCut for Automatic Foreground Object Segmentation
Prakash, Surya (Indian Institute of Technology Madras. Department of Computer Science and Engineering)
Abhilash, R. (Indian Institute of Technology Madras. Department of Computer Science and Engineering)
Das, Sukhendu (Indian Institute of Technology Madras. Department of Computer Science and Engineering)

Fecha: 2007
Resumen: Interactive techniques for extracting the foreground object from an image have been the interest of research in computer vision for a long time. This paper addresses the problem of an efficient, semi-interactive extraction of a foreground object from an image. Snake (also known as Active contour) and GrabCut are two popular techniques, extensively used for this task. Active contour is a deformable contour, which segments the object using boundary discontinuities by minimizing the energy function associated with the contour. GrabCut provides a convenient way to encode color features as segmentation cues to obtain foreground segmentation from local pixel similarities using modified iterated graph-cuts. This paper first presents a comparative study of these two segmentation techniques, and illustrates conditions under which either or both of them fail. We then propose a novel formulation for integrating these two complimentary techniques to obtain an automatic foreground object segmentation. We call our proposed integrated approach as “SnakeCut”, which is based on a probabilistic framework. To validate our approach, we show results both on simulated and natural images.
Derechos: Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial i la comunicació pública de l'obra, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. No es permet la creació d'obres derivades. Creative Commons
Lengua: Anglès.
Documento: article ; recerca ; publishedVersion
Materia: Contorn activat ; Segmentació objecte ; Transformar distància ; Contorno activado ; Segmentación objeto ; Transformar distancia ; Snake ; Active Contour ; GrabCut ; SnakeCut ; Object segmentation ; Distance transform
Publicado en: ELCVIA : Electronic Letters on Computer Vision and Image Analysis, V. 6 n. 3 (2007) p. 13-28, ISSN 1577-5097

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DOI: 10.5565/rev/elcvia.139

16 p, 421.9 KB

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