Siwei Nie — accepted AI-conference papers

2025

Tracing Copied Pixels and Regularizing Patch Affinity in Copy Detection

Yichen Lu, Siwei Nie, Minlong Lu, Xudong Yang, Xiaobo Zhang, Peng Zhang

ICCV 2025poster

Image Copy Detection (ICD) aims to identify manipulated content between image pairs through robust feature representation learning. While self-supervised learning (SSL) has advanced ICD systems, existing view-level contrastive methods struggle with sophisticated edits due to insufficient fine-graine…

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2024

Self-Supervised Video Copy Localization with Regional Token Representation

Minlong Lu*, Yichen Lu, Siwei Nie, Xudong Yang, Xiaobo Zhang

ECCV 2024poster

"The task of video copy localization aims at finding the start and end timestamps of all copied segments within a pair of untrimmed videos. Recent approaches usually extract frame-level features and generate a frame-to-frame similarity map for the video pair. Learned detectors are used to identify d…

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