COMPUTER VISION

LRR: Language-Driven Resamplable Continuous Representation against Adversarial Tracking Attacks

January 25, 2024

Abstract

Visual object tracking plays a critical role in visual-based autonomous systems, as it aims to estimate the position and size of the object of interest within a live video. Despite significant progress made in this field, state-of-the-art (SOTA) trackers often fail when faced with adversarial perturbations in the incoming frames. This can lead to significant robustness and security issues when these trackers are deployed in the real world. To achieve high accuracy on both clean and adversarial data, we propose building a spatial-temporal implicit representation using the semantic text guidance of the object of interest extracted from the language-image model (i.e., CLIP). This novel representation enables us to reconstruct incoming frames to maintain semantics and appearance consistent with the object of interest and its clean counterparts. As a result, our proposed method successfully defends against different SOTA adversarial tracking attacks while maintaining high accuracy on clean data. In particular, our method significantly increases tracking accuracy under adversarial attacks with around 90% relative improvement on UAV123, which is close to the accuracy on clean data.

Download the Paper

AUTHORS

Written by

Felix Xu

Di Lin

Jianjun Zhao

Jianlang Chen

Lei Ma

Qing Guo

Wei Feng

Xuhong Ren

Publisher

International Conference on Learning Representations (ICLR)

Research Topics

Computer Vision

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