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Diffusion models have recently emerged as powerful tools for missing data imputation by modeling the joint distribution of observed and unobserved variables. However, existing methods, typically based on stochastic denoising diffusion…

Artificial Intelligence · Computer Science 2025-08-06 Youran Zhou , Mohamed Reda Bouadjenek , Sunil Aryal

Diffusion models have achieved remarkable success in image synthesis, but the generated high-quality images raise concerns about potential malicious use. Existing detectors often struggle to capture discriminative clues across different…

Computer Vision and Pattern Recognition · Computer Science 2025-11-04 Daichi Zhang , Tong Zhang , Shiming Ge , Sabine Süsstrunk

In today's digital landscape, journalists urgently require tools to verify the authenticity of facial images and videos depicting specific public figures before incorporating them into news stories. Existing deepfake detectors are not…

Image and Video Processing · Electrical Eng. & Systems 2025-04-08 Mushfiqur Rahman , Runze Liu , Chau-Wai Wong , Huaiyu Dai

While Diffusion Language Models (DLMs) are theoretically well-suited for iterative refinement due to their non-causal structure, they often fail to reliably revise incorrect tokens in practice. The key challenge lies in the model's…

Machine Learning · Computer Science 2026-01-30 Shuibai Zhang , Fred Zhangzhi Peng , Yiheng Zhang , Jin Pan , Grigorios G. Chrysos

The malicious use and widespread dissemination of deepfake pose a significant crisis of trust. Current deepfake detection models can generally recognize forgery images by training on a large dataset. However, the accuracy of detection…

Computer Vision and Pattern Recognition · Computer Science 2023-09-19 Kun Pan , Yin Yifang , Yao Wei , Feng Lin , Zhongjie Ba , Zhenguang Liu , ZhiBo Wang , Lorenzo Cavallaro , Kui Ren

The proliferation of deepfake faces poses huge potential negative impacts on our daily lives. Despite substantial advancements in deepfake detection over these years, the generalizability of existing methods against forgeries from unseen…

Computer Vision and Pattern Recognition · Computer Science 2025-04-14 Kaiqing Lin , Yuzhen Lin , Weixiang Li , Taiping Yao , Bin Li

Face Forgery Detection (FFD), or Deepfake detection, aims to determine whether a digital face is real or fake. Due to different face synthesis algorithms with diverse forgery patterns, FFD models often overfit specific patterns in training…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Zonghui Guo , Yingjie Liu , Jie Zhang , Haiyong Zheng , Shiguang Shan

The search for refining 3D LiDAR data has attracted growing interest motivated by recent techniques such as supervised learning or generative model-based methods. Existing approaches have shown the possibilities for using diffusion models…

Computer Vision and Pattern Recognition · Computer Science 2024-07-24 Sander Elias Magnussen Helgesen , Kazuto Nakashima , Jim Tørresen , Ryo Kurazume

Deepfake videos, produced through advanced artificial intelligence methods now a days, pose a new challenge to the truthfulness of the digital media. As Deepfake becomes more convincing day by day, detecting them requires advanced methods…

Computer Vision and Pattern Recognition · Computer Science 2025-06-17 Mahmudul Hasan , Sadia Ruhama , Sabrina Tajnim Sithi , Chowdhury Mohammad Mutamir Samit , Oindrila Saha

Deep generative models have shown impressive results in generating realistic images of faces. GANs managed to generate high-quality, high-fidelity images when conditioned on semantic masks, but they still lack the ability to diversify their…

Computer Vision and Pattern Recognition · Computer Science 2023-09-29 Nico Giambi , Giuseppe Lisanti

Masked Diffusion Models (MDMs) offer a promising alternative to autoregressive language models by enabling parallel token generation and bidirectional context modeling. However, their inference speed is significantly limited by the…

Machine Learning · Computer Science 2026-04-08 Satyam Goyal , Kushal Patel , Tanush Mittal , Arjun Laxman

There have been emerging a number of benchmarks and techniques for the detection of deepfakes. However, very few works study the detection of incrementally appearing deepfakes in the real-world scenarios. To simulate the wild scenes, this…

Computer Vision and Pattern Recognition · Computer Science 2022-11-15 Chuqiao Li , Zhiwu Huang , Danda Pani Paudel , Yabin Wang , Mohamad Shahbazi , Xiaopeng Hong , Luc Van Gool

In recent years, diffusion models have gained popularity for their ability to generate higher-quality images in comparison to GAN models. However, like any other large generative models, these models require a huge amount of data,…

Computer Vision and Pattern Recognition · Computer Science 2023-12-21 Rajesh Shrestha , Bowen Xie

Super-resolution algorithms often struggle with images from surveillance environments due to adverse conditions such as unknown degradation, variations in pose, irregular illumination, and occlusions. However, acquiring multiple images,…

Computer Vision and Pattern Recognition · Computer Science 2024-10-22 Marcelo dos Santos , Rayson Laroca , Rafael O. Ribeiro , João C. Neves , David Menotti

Face animation has achieved much progress in computer vision. However, prevailing GAN-based methods suffer from unnatural distortions and artifacts due to sophisticated motion deformation. In this paper, we propose a Face Animation…

Computer Vision and Pattern Recognition · Computer Science 2023-04-07 Bohan Zeng , Xuhui Liu , Sicheng Gao , Boyu Liu , Hong Li , Jianzhuang Liu , Baochang Zhang

The rapid development of photo-realistic face generation methods has raised significant concerns in society and academia, highlighting the urgent need for robust and generalizable face forgery detection (FFD) techniques. Although existing…

Computer Vision and Pattern Recognition · Computer Science 2025-06-03 Yaning Zhang , Tianyi Wang , Zitong Yu , Zan Gao , Linlin Shen , Shengyong Chen

Image-based virtual try-on is an increasingly important task for online shopping. It aims to synthesize images of a specific person wearing a specified garment. Diffusion model-based approaches have recently become popular, as they are…

Computer Vision and Pattern Recognition · Computer Science 2024-04-02 Xu Yang , Changxing Ding , Zhibin Hong , Junhao Huang , Jin Tao , Xiangmin Xu

The rapid spread of fake news across multimedia platforms presents serious challenges to information credibility. In this paper, we propose a Debunk-and-Infer framework for Fake News Detection(DIFND) that leverages debunking knowledge to…

Computation and Language · Computer Science 2025-06-30 Kaiying Yan , Moyang Liu , Yukun Liu , Ruibo Fu , Zhengqi Wen , Jianhua Tao , Xuefei Liu

Diffusion-based inpainting is a powerful tool for the reconstruction of images from sparse data. Its quality strongly depends on the choice of known data. Optimising their spatial location -- the inpainting mask -- is challenging. A…

Image and Video Processing · Electrical Eng. & Systems 2022-05-17 Tobias Alt , Pascal Peter , Joachim Weickert

Generalizability to unseen forgery types is crucial for face forgery detectors. Recent works have made significant progress in terms of generalization by synthetic forgery data augmentation. In this work, we explore another path for…

Computer Vision and Pattern Recognition · Computer Science 2024-11-19 Jianwei Fei , Yunshu Dai , Huaming Wang , Zhihua Xia