Robust Correlation Tracking for UAV with Feature Integration and Response Map Enhancement

Bin Lin, Yunpeng Bai, Bendu Bai, Ying Li*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)
74 Downloads (Pure)

Abstract

Recently, correlation filter (CF)-based tracking algorithms have attained extensive interest in the field of unmanned aerial vehicle (UAV) tracking. Nonetheless, existing trackers still struggle with selecting suitable features and alleviating the model drift issue for online UAV tracking. In this paper, a robust CF-based tracker with feature integration and response map enhancement is proposed. Concretely, we develop a novel feature integration method that comprehensively describes the target by leveraging auxiliary gradient information extracted from the binary representation. Subsequently, the integrated features are utilized to learn a background-aware correlation filter (BACF) for generating a response map that implies the target location. To mitigate the risk of model drift, we introduce saliency awareness in the BACF framework and further propose an adaptive response fusion strategy to enhance the discriminating capability of the response map. Moreover, a dynamic model update mechanism is designed to prevent filter contamination and maintain tracking stability. Experiments on three public benchmarks verify that the proposed tracker outperforms several state-of-the-art algorithms and achieves a real-time tracking speed, which can be applied in UAV tracking scenarios efficiently.

Original languageEnglish
Article numbere4073
Number of pages19
JournalRemote Sensing
Volume14
Issue number16
DOIs
Publication statusPublished - 20 Aug 2022

Keywords

  • visual object tracking
  • unmanned aerial vehicle
  • correlation filter
  • feature integration
  • response map enhancement

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