UAV Tracking Based on Correlation Filters With Dynamic Aberrance-Repressed Temporal Regularizations

As a significant research direction in remote sensing fields, unmanned aerial vehicles (UAVs) tracking has achieved rapid development in recent years. However, due to limited power and computation resources on aerial platforms, the trackingmethods deployed on UAVs usually require high computational efficiency and performance. In addition, various challenges (i.e., similar object, background clutter, and occlusion) have inevitably occurred during the UAV tracking phase. Therefore, considering the above issues comprehensively, this article proposes a dynamic aberrance-repressed temporal regularized correlation filter (CF) to achieve stable tracking inUAVremote sensing videos. First, we have introduced the aberrance-repressed temporal regularizations into the discriminative CF framework. Second, a novel objective loss function is constructed to adjust the strength of each regularization for training the filter. Then, a new judgment mechanism based on the response variation is exploited to reflect the response fluctuation and applied to tune parameters of both regularizations. Finally, comprehensive experiments are done on three different UAV benchmarks, i.e., UAV123@10fps, UAVDT, and VisDrone2018, to verify the performance of our tracker and have demonstrated that our tracker achieves superior performance against other total 25 state-of-the-art trackers while reaching 35 FPS on a single CPU.