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|Title:||Graph mode-based contextual kernels for robust SVM tracking|
Van Den Hengel, A.
|Citation:||2011 IEEE International Conference on Computer Vision, 2011: pp.1156-1163|
|Series/Report no.:||IEEE International Conference on Computer Vision|
|Conference Name:||International Conference on Computer Vision (13th : 2011 : Barcelona, Spain)|
|Xi Li, Anthony Dick, Hanzi Wang, Chunhua Shen, Anton van den Hengel|
|Abstract:||Visual tracking has been typically solved as a binary classification problem. Most existing trackers only consider the pairwise interactions between samples, and thereby ignore the higher-order contextual interactions, which may lead to the sensitivity to complicated factors such as noises, outliers, background clutters and so on. In this paper, we propose a visual tracker based on support vector machines (SVMs), for which a novel graph mode-based contextual kernel is designed to effectively capture the higher-order contextual information from samples. To do so, we first create a visual graph whose similarity matrix is determined by a baseline visual kernel. Second, a set of high-order contexts are discovered in the visual graph. The problem of discovering these high-order contexts is solved by seeking modes of the visual graph. Each graph mode corresponds to a vertex community termed as a high-order context. Third, we construct a contextual kernel that effectively captures the interaction information between the high-order contexts. Finally, this contextual kernel is embedded into SVMs for robust tracking. Experimental results on challenging videos demonstrate the effectiveness and robustness of the proposed tracker.|
|Rights:||Copyright © 2011 by IEEE.|
|Appears in Collections:||Computer Science publications|
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