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Accurate mask-based spatially regularized correlation filter for visual tracking

[+] Author Affiliations
Xiaodong Gu, Xinping Xu

Jiangsu Second Normal University, School of Mathematics and Information Technology, 77 BeiJing West Road, GuLou District, Nanjing 210013, China

J. Electron. Imaging. 26(1), 013002 (Jan 09, 2017). doi:10.1117/1.JEI.26.1.013002
History: Received August 2, 2016; Accepted December 13, 2016
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Abstract.  Recently, discriminative correlation filter (DCF)-based trackers have achieved extremely successful results in many competitions and benchmarks. These methods utilize a periodic assumption of the training samples to efficiently learn a classifier. However, this assumption will produce unwanted boundary effects, which severely degrade the tracking performance. Correlation filters with limited boundaries and spatially regularized DCFs were proposed to reduce boundary effects. However, their methods used the fixed mask or predesigned weights function, respectively, which was unsuitable for large appearance variation. We propose an accurate mask-based spatially regularized correlation filter for visual tracking. Our augmented objective can reduce the boundary effect even in large appearance variation. In our algorithm, the masking matrix is converted into the regularized function that acts on the correlation filter in frequency domain, which makes the algorithm fast convergence. Our online tracking algorithm performs favorably against state-of-the-art trackers on OTB-2015 Benchmark in terms of efficiency, accuracy, and robustness.

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Citation

Xiaodong Gu and Xinping Xu
"Accurate mask-based spatially regularized correlation filter for visual tracking", J. Electron. Imaging. 26(1), 013002 (Jan 09, 2017). ; http://dx.doi.org/10.1117/1.JEI.26.1.013002


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