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Sensors 2019, 19(8), 1818; https://doi.org/10.3390/s19081818

Object Tracking Based on Vector Convolutional Network and Discriminant Correlation Filters

School of Electronic and Optical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
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Received: 15 March 2019 / Revised: 4 April 2019 / Accepted: 10 April 2019 / Published: 16 April 2019
(This article belongs to the Section Physical Sensors)
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Abstract

Due to the fast speed and high efficiency, discriminant correlation filter (DCF) has drawn great attention in online object tracking recently. However, with the improvement of performance, the costs are the increase in parameters and the decline of speed. In this paper, we propose a novel visual tracking algorithm, namely VDCFNet, and combine DCF with a vector convolutional network (VCNN). We replace one traditional convolutional filter with two novel vector convolutional filters in the convolutional stage of our network. This enables our model with few memories (only 59 KB) trained offline to learn the generic image features. In the online tracking stage, we propose a coarse-to-fine search strategy to solve drift problems under fast motion. Besides, we update model selectively to speed up and increase robustness. The experiments on OTB benchmarks demonstrate that our proposed VDCFNet can achieve a competitive performance while running over real-time speed. View Full-Text
Keywords: object tracking; convolutional neural network; discriminant correlation filter object tracking; convolutional neural network; discriminant correlation filter
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Liu, Y.; Sui, X.; Kuang, X.; Liu, C.; Gu, G.; Chen, Q. Object Tracking Based on Vector Convolutional Network and Discriminant Correlation Filters. Sensors 2019, 19, 1818.

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