6 papers
COVER: Codec-Robust Video Watermarking with Generative Video Priors
Yuxin Cao, Hao Yang, Ziqi Ding +2
Video watermarking underpins copyright protection and provenance for generated media, yet almost every video is compressed by a codec before it is stored or shared. A codec discard…
Beyond Patch Removal: Persistent Adversarial Effects in Vision-Language-Action Policies
Enhao Wu, Fusen Guo, Yuxin Cao +3
Adversarial patches to Vision-Language-Action (VLA) policies can cause both immediate action corruption and persistent state effects that remain after the patch is removed. Existin…
Do Input-Level Defenses Transfer to Observation-Level Attacks on VideoLLMs?
Bangshuo Zhu, Wei Song, Yuxin Cao +4
Video Large Language Models (VideoLLMs) are increasingly deployed in safety-critical applications such as content moderation and video analytics. To process long videos efficiently…
KeyBound: Keyed and Host-Bound Learned Audio Watermarking for Speech Provenance
Bangshuo Zhu, Yuxin Cao, Weifei Jin +4
Audio watermarking is a proactive route to attributing synthetic speech to its source. Learned audio watermarks are typically judged by payload recovery after a fixed catalog of si…
The Temporal Moderation Gap: Text-to-Video Safety Filters Are Blind to Harm in Motion
Yuxin Cao, Fusen Guo, Yuezhong Wu +2
Text-to-video (T2V) services inherit their safety stack from image generation, pairing a keyword prompt filter with a per-frame checker that blocks a clip whenever one sampled fram…
Membership Inference Attacks Against Video Large Language Models
Wei Song, Yuxin Cao, Ziqi Ding +3
Video large language models (VideoLLMs) are increasingly trained or instruction-tuned on large-scale video--text corpora collected from heterogeneous sources, raising an immediate…