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General image super-resolution techniques have difficulties in recovering detailed face structures when applying to low resolution face images. Recent deep learning based methods tailored for face images have achieved improved performance…

Computer Vision and Pattern Recognition · Computer Science 2021-02-03 Chaofeng Chen , Dihong Gong , Hao Wang , Zhifeng Li , Kwan-Yee K. Wong

Shadow detection is a fundamental and challenging task in many computer vision applications. Intuitively, most shadows come from the occlusion of light by the object itself, resulting in the object and its shadow being contiguous (referred…

Computer Vision and Pattern Recognition · Computer Science 2024-08-08 Yonghui Wang , Shaokai Liu , Li Li , Wengang Zhou , Houqiang Li

Deepfakes are the synthesized digital media in order to create ultra-realistic fake videos to trick the spectator. Deep generative algorithms, such as, Generative Adversarial Networks(GAN) are widely used to accomplish such tasks. This…

Computer Vision and Pattern Recognition · Computer Science 2022-08-02 Pallabi Saikia , Dhwani Dholaria , Priyanka Yadav , Vaidehi Patel , Mohendra Roy

The increasing use of synthetic media, particularly deepfakes, is an emerging challenge for digital content verification. Although recent studies use both audio and visual information, most integrate these cues within a single model, which…

Computer Vision and Pattern Recognition · Computer Science 2025-12-09 Sayeem Been Zaman , Wasimul Karim , Arefin Ittesafun Abian , Reem E. Mohamed , Md Rafiqul Islam , Asif Karim , Sami Azam

Recovering high-frequency textures in image demosaicking remains a challenging issue. While existing methods introduced elaborate spatial learning methods, they still exhibit limited performance. To address this issue, a frequency…

Computer Vision and Pattern Recognition · Computer Science 2025-03-21 Jingyun Liu , Daiqin Yang , Zhenzhong Chen

Recent deepfake detection methods have increasingly explored frequency domain representations to reveal manipulation artifacts that are difficult to detect in the spatial domain. However, most existing approaches rely primarily on spectral…

Computer Vision and Pattern Recognition · Computer Science 2026-01-12 Zhen-Xin Lin , Shang-Kuan Chen

Residual-domain feature is very useful for Deepfake detection because it suppresses irrelevant content features and preserves key manipulation traces. However, inappropriate residual prediction will bring side effects on detection accuracy.…

Computer Vision and Pattern Recognition · Computer Science 2022-05-03 Zhiqing Guo , Gaobo Yang , Jiyou Chen , Xingming Sun

It is helpful in preventing colorectal cancer to detect and treat polyps in the gastrointestinal tract early. However, there have been few studies to date on designing polyp image classification networks that balance efficiency and…

Computer Vision and Pattern Recognition · Computer Science 2024-08-02 Wei Wang , Jixing He , Xin Wang

Face anti-spoofing (FAS) plays a critical role in securing face recognition systems from different presentation attacks. Previous works leverage auxiliary pixel-level supervision and domain generalization approaches to address unseen spoof…

Computer Vision and Pattern Recognition · Computer Science 2022-03-29 Chien-Yi Wang , Yu-Ding Lu , Shang-Ta Yang , Shang-Hong Lai

With the rapid development of technology in the field of AI, deepfake technology has emerged as a double-edged sword. It has not only created a large amount of AI-generated content but also posed unprecedented challenges to digital…

Computer Vision and Pattern Recognition · Computer Science 2025-08-18 Xiaoya Zhu , Yibing Nan , Shiguo Lian

Existing deepfake detection research has primarily focused on scenarios where the manipulated subject is actively speaking, i.e., generating fabricated content by altering the speaker's appearance or voice. However, in realistic interaction…

Computer Vision and Pattern Recognition · Computer Science 2026-04-15 Miao Liu , Fangda Wei , Jing Wang , Xinyuan Qian

Deepfake is a generative deep learning algorithm that creates or changes facial features in a very realistic way making it hard to differentiate the real from the fake features It can be used to make movies look better as well as to spread…

Computer Vision and Pattern Recognition · Computer Science 2024-06-21 Nadeem Jabbar CH , Aqib Saghir , Ayaz Ahmad Meer , Salman Ahmad Sahi , Bilal Hassan , Siddiqui Muhammad Yasir

Environmental perception systems are crucial for high-precision mapping and autonomous navigation, with LiDAR serving as a core sensor providing accurate 3D point cloud data. Efficiently processing unstructured point clouds while extracting…

Computer Vision and Pattern Recognition · Computer Science 2025-11-25 Chuang Chen , Yi Lin , Bo Wang , Jing Hu , Xi Wu , Wenyi Ge

Deepfake generation has witnessed remarkable progress, contributing to highly realistic generated images, videos, and audio. While technically intriguing, such progress has raised serious concerns related to the misuse of manipulated media.…

Computer Vision and Pattern Recognition · Computer Science 2025-12-01 Maheswar Bora , Tashvik Dhamija , Shukesh Reddy , Baptiste Chopin , Pranav Balaji , Abhijit Das , Antitza Dantcheva

While deep learning, particularly convolutional neural networks (CNNs), has revolutionized remote sensing (RS) change detection (CD), existing approaches often miss crucial features due to neglecting global context and incomplete change…

Multimedia · Computer Science 2024-07-04 Yuhao Gao , Gensheng Pei , Mengmeng Sheng , Zeren Sun , Tao Chen , Yazhou Yao

In this paper, an advanced fracture detection framework, FracDetNet, is proposed to address challenges in medical imaging, as accurate fracture detection is essential for enhancing diagnostic efficiency in clinical practice. Despite recent…

Computer Vision and Pattern Recognition · Computer Science 2025-09-30 Yuyang Sun , Cuiming Zou

The rapid advances in deep generative models over the past years have led to highly {realistic media, known as deepfakes,} that are commonly indistinguishable from real to human eyes. These advances make assessing the authenticity of visual…

Computer Vision and Pattern Recognition · Computer Science 2021-06-01 Yang He , Ning Yu , Margret Keuper , Mario Fritz

The rapid advancement of photorealistic generators has reached a critical juncture where the discrepancy between authentic and manipulated images is increasingly indistinguishable. Thus, benchmarking and advancing techniques detecting…

Computer Vision and Pattern Recognition · Computer Science 2024-09-30 Yaning Zhang , Zitong Yu , Tianyi Wang , Xiaobin Huang , Linlin Shen , Zan Gao , Jianfeng Ren

Synthetic facial videos have proliferated across social media faster than platform moderation can respond, raising the cost of disinformation and identity-based attacks. Frame-level deepfake detectors degrade sharply as generator quality…

Computer Vision and Pattern Recognition · Computer Science 2026-05-19 Mohammadreza Rashidi , Raja Hashim Ali , Sami Ur Rahman

Deepfake detection remains highly challenging, particularly in cross-dataset scenarios and complex real-world settings. This challenge mainly arises because artifact patterns vary substantially across different forgery methods, whereas…

Computer Vision and Pattern Recognition · Computer Science 2026-04-14 Xiang Zhang , Wenliang Weng , Daoyong Fu , Beijing Chen , Ziqiang Li , Ziwen He , Zhangjie Fu