Object Tracking with Multi-spatial Resolutions and Adaptive Feature Fusion Based on Correlation Filters
TANG Zhangyong1, WU Xiaojun2, ZHU Xuefeng1
1. School of Internet of Things Engineering, Jiangnan University, Wuxi 214122; 2. Jiangsu Provincial Engineering Laboratory of Pattern Recognition and Computational Intelligence, Jiangnan University, Wuxi 214122
Abstract：Correlation filter(CF) based trackers cannot take advantage of the complementary characteristic of deep features and shallow features. To mitigate this problem, an object tracking algorithm with multi-spatial resolutions and adaptive feature fusion based on correlation filter is proposed. Firstly, ResNet-50 is employed to extract deep features and enhance the discrimination and robustness of feature representation during tracking. Additionally, according to the characteristic of different features with different spatial resolutions, image patches in different scales are segmented from video frame as the search area to balance the boundary effect and the number of samples. Finally, an adaptive feature fusion strategy is introduced to fuse the response maps corresponding to two kinds of features with adaptive weights to utilize the complementary characteristic. The experiments on multiple standard datasets verify the effectiveness and robustness of the proposed algorithm.
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2020, Vol. 33 
