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Zhanhao Hu

10 accepted papers

2026

GradShield: Alignment Preserving Finetuning

ICLR 2026poster

Large Language Models (LLMs) pose a significant risk of safety misalignment after finetuning, as models can be compromised by both explicitly and implicitly harmful data. Even some seemingly benign data can inadvertently steer a model towards unsafe behaviors. To address this, we introduce GradShiel…

Cited by 0SourceScholar
2026

Physical Adversarial Clothing Evades Visible-Thermal Detectors via Non-Overlapping RGB-T Pattern

CVPR 2026

Visible-thermal (RGB-T) object detection is a crucial technology for applications such as autonomous driving, where multimodal fusion enhances performance in challenging conditions like low light. However, the security of RGB-T detectors, particularly in the physical world, has been largely overlook

Cited by 0SourcecodeScholar
2024

Full-Distance Evasion of Pedestrian Detectors in the Physical World

NeurIPS 2024poster

Many studies have proposed attack methods to generate adversarial patterns for evading pedestrian detection, alarming the computer vision community about the need for more attention to the robustness of detectors. However, adversarial patterns optimized by these methods commonly have limited perform…

2024

Language-Driven Anchors for Zero-Shot Adversarial Robustness

CVPR 2024poster

Deep Neural Networks (DNNs) are known to be susceptible to adversarial attacks. Previous researches mainly focus on improving adversarial robustness in the fully supervised setting leaving the challenging domain of zero-shot adversarial robustness an open question. In this work we investigate this d…

2023

Physically Realizable Natural-Looking Clothing Textures Evade Person Detectors via 3D Modeling

CVPR 2023poster

Recent works have proposed to craft adversarial clothes for evading person detectors, while they are either only effective at limited viewing angles or very conspicuous to humans. We aim to craft adversarial texture for clothes based on 3D modeling, an idea that has been used to craft rigid adversar…

2022

Adversarial Texture for Fooling Person Detectors in the Physical World

CVPR 2022oral

Nowadays, cameras equipped with AI systems can capture and analyze images to detect people automatically. However, the AI system can make mistakes when receiving deliberately designed patterns in the real world, i.e., physical adversarial examples. Prior works have shown that it is possible to print…

Cited by 147PDFcodeScholar
2022

Infrared Invisible Clothing: Hiding From Infrared Detectors at Multiple Angles in Real World

CVPR 2022oral

Thermal infrared imaging is widely used in body temperature measurement, security monitoring, and so on, but its safety research attracted attention only in recent years. We proposed the infrared adversarial clothing, which could fool infrared pedestrian detectors at different angles. We simulated t…

Cited by 73PDFScholar