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Weilun Wang

5 accepted papers

2023

AltFreezing for More General Video Face Forgery Detection

CVPR 2023highlight

Existing face forgery detection models try to discriminate fake images by detecting only spatial artifacts (e.g., generative artifacts, blending) or mainly temporal artifacts (e.g., flickering, discontinuity). They may experience significant performance degradation when facing out-domain artifacts.…

2023

DIRE for Diffusion-Generated Image Detection

ICCV 2023poster

Diffusion models have shown remarkable success in visual synthesis, but have also raised concerns about potential abuse for malicious purposes. In this paper, we seek to build a detector for telling apart real images from diffusion-generated images. We find that existing detectors struggle to detect…

Cited by 221PDFcodeScholar
2021

Instance-Wise Hard Negative Example Generation for Contrastive Learning in Unpaired Image-to-Image Translation

ICCV 2021poster

Contrastive learning shows great potential in unpaired image-to-image translation, but sometimes the translated results are in poor quality and the contents are not preserved consistently. In this paper, we uncover that the negative examples play a critical role in the performance of contrastive lea…

Cited by 104PDFScholar