Article ID Journal Published Year Pages File Type
525797 Computer Vision and Image Understanding 2013 12 Pages PDF
Abstract

•A video segmentation based on dynamic texture is proposed.•The method uses deterministic partially self-avoiding walks and a k-means.•The sequence of images is considered as a 3D matrix, which is split into blocks.•A feature vector for each block is obtained using the deterministic walks algorithm.•k-Means algorithm clusters is used to obtain the video segmentation.

Recently there has been a considerable interest in dynamic textures due to the explosive growth of multimedia databases. In addition, dynamic texture appears in a wide range of videos, which makes it very important in applications concerning to model physical phenomena. Thus, dynamic textures have emerged as a new field of investigation that extends the static or spatial textures to the spatio-temporal domain. In this paper, we propose a novel approach for dynamic texture segmentation based on automata theory and k-means algorithm. In this approach, a feature vector is extracted for each pixel by applying deterministic partially self-avoiding walks on three orthogonal planes of the video. Then, these feature vectors are clustered by the well-known k-means algorithm. Although the k-means algorithm has shown interesting results, it only ensures its convergence to a local minimum, which affects the final result of segmentation. In order to overcome this drawback, we compare six methods of initialization of the k-means. The experimental results have demonstrated the effectiveness of our proposed approach compared to the state-of-the-art segmentation methods.

Related Topics
Physical Sciences and Engineering Computer Science Computer Vision and Pattern Recognition
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