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Video object segmentation and tracking using region-based statistics
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DOI：10.1016/j.image.2007.09.001.png)
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Abstract
En 中文
Two new region-based methods for video object tracking using active contours are presented. The first method is based on the assumption that the color histogram of the tracked object is nearly stationary from frame to frame. The proposed method is based on minimizing the color histogram difference between the estimated objects at a reference frame and the current frame using a dynamic programming framework. The second method is defined for scenes where there is an out-of-focus blur difference between the object of interest and the background. In such scenes, the proposed defocus energy can be utilized for automatic segmentation of the object boundary, and it can be combined with the histogram method to track the object more efficiently. Experiments demonstrate that the proposed methods are successful in difficult scenes with significant background clutter. (C) 2007 Elsevier B.V. All rights reserved.
Keywords:
object tracking
active contours
histogram matching
curve evolution
defocus
selective focus
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