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Recent studies in deepfake detection have yielded promising results when the training and testing face forgeries are from the same dataset. However, the problem remains challenging when one tries to generalize the detector to forgeries…

计算机视觉与模式识别 · 计算机科学 2022-04-04 Liang Chen , Yong Zhang , Yibing Song , Lingqiao Liu , Jue Wang

One of the major obstacles in automatic polyp detection during colonoscopy is the lack of labeled polyp training images. In this paper, we propose a framework of conditional adversarial networks to increase the number of training samples by…

图像与视频处理 · 电气工程与系统科学 2019-06-28 Younghak Shin , Hemin Ali Qadir , Ilangko Balasingham

Colorectal cancer (CRC) is a significant global health concern, and early detection through screening plays a critical role in reducing mortality. While deep learning models have shown promise in improving polyp detection, classification,…

计算机视觉与模式识别 · 计算机科学 2025-12-30 Jia Yu , Yan Zhu , Peiyao Fu , Tianyi Chen , Junbo Huang , Quanlin Li , Pinghong Zhou , Zhihua Wang , Fei Wu , Shuo Wang , Xian Yang

Automated diagnostic systems (ADS) have shown significant potential in the early detection of polyps during endoscopic examinations, thereby reducing the incidence of colorectal cancer. However, due to high annotation costs and strict…

计算机视觉与模式识别 · 计算机科学 2025-10-09 Shengyuan Liu , Zhen Chen , Qiushi Yang , Weihao Yu , Di Dong , Jiancong Hu , Yixuan Yuan

Medical imaging plays a critical role in various clinical applications. However, due to multiple considerations such as cost and risk, the acquisition of certain image modalities could be limited. To address this issue, many cross-modality…

图像与视频处理 · 电气工程与系统科学 2019-07-09 Dong Nie , Lei Xiang , Qian Wang , Dinggang Shen

Synthetic data generation has become an emerging tool to help improve the adversarial robustness in classification tasks since robust learning requires a significantly larger amount of training samples compared with standard classification…

机器学习 · 计算机科学 2023-07-06 Yidong Ouyang , Liyan Xie , Guang Cheng

The advance of computer-aided detection systems using deep learning opened a new scope in endoscopic image analysis. However, the learning-based models developed on closed datasets are susceptible to unknown anomalies in complex clinical…

计算机视觉与模式识别 · 计算机科学 2022-12-26 Haoran Wang , Yan Zhu , Wenzheng Qin , Yizhe Zhang , Pinghong Zhou , Quanlin Li , Shuo Wang , Zhijian Song

Detecting diffusion-generated deepfake images remains an open problem. Current detection methods fail against an adversary who adds imperceptible adversarial perturbations to the deepfake to evade detection. In this work, we propose…

机器学习 · 计算机科学 2023-08-08 Ashish Hooda , Neal Mangaokar , Ryan Feng , Kassem Fawaz , Somesh Jha , Atul Prakash

Face image synthesis is gaining more attention in computer security due to concerns about its potential negative impacts, including those related to fake biometrics. Hence, building models that can detect the synthesized face images is an…

计算机视觉与模式识别 · 计算机科学 2024-01-10 Roberto Leyva , Victor Sanchez , Gregory Epiphaniou , Carsten Maple

Achieving robust generalization against unseen attacks remains a challenge in Audio Deepfake Detection (ADD), driven by the rapid evolution of generative models. To address this, we propose a framework centered on hard sample…

声音 · 计算机科学 2026-04-30 Bo Cheng , Songjun Cao , Xiaoming Zhang , Jie Chen , Long Ma , Fei Chen

We present a novel method for generating robust adversarial image examples building upon the recent `deep image prior' (DIP) that exploits convolutional network architectures to enforce plausible texture in image synthesis. Adversarial…

计算机视觉与模式识别 · 计算机科学 2019-07-04 Thomas Gittings , Steve Schneider , John Collomosse

Polyp segmentation is a crucial step towards computer-aided diagnosis of colorectal cancer. However, most of the polyp segmentation methods require pixel-wise annotated datasets. Annotated datasets are tedious and time-consuming to produce,…

计算机视觉与模式识别 · 计算机科学 2022-11-23 Guangyu Ren , Michalis Lazarou , Jing Yuan , Tania Stathaki

Magnetic Resonance Imaging (MRI) is instrumental in clinical diagnosis, offering diverse contrasts that provide comprehensive diagnostic information. However, acquiring multiple MRI contrasts is often constrained by high costs, long…

计算机视觉与模式识别 · 计算机科学 2024-09-04 Sanuwani Dayarathna , Kh Tohidul Islam , Bohan Zhuang , Guang Yang , Jianfei Cai , Meng Law , Zhaolin Chen

Recommendation systems often rely on implicit feedback, where only positive user-item interactions can be observed. Negative sampling is therefore crucial to provide proper negative training signals. However, existing methods tend to…

信息检索 · 计算机科学 2026-01-06 Na Li , Fanghui Sun , Yan Zou , Yangfu Zhu , Xiatian Zhu , Ying Ma

The diffusion-based adversarial purification methods attempt to drown adversarial perturbations into a part of isotropic noise through the forward process, and then recover the clean images through the reverse process. Due to the lack of…

计算机视觉与模式识别 · 计算机科学 2025-12-09 Gaozheng Pei , Ke Ma , Yingfei Sun , Qianqian Xu , Qingming Huang

With growing attention to tabular data these days, the attempt to apply a synthetic table to various tasks has been expanded toward various scenarios. Owing to the recent advances in generative modeling, fake data generated by tabular data…

机器学习 · 计算机科学 2023-09-22 Chaejeong Lee , Jayoung Kim , Noseong Park

Audio DeepFakes allow the creation of high-quality, convincing utterances and therefore pose a threat due to its potential applications such as impersonation or fake news. Methods for detecting these manipulations should be characterized by…

声音 · 计算机科学 2022-10-13 Piotr Kawa , Marcin Plata , Piotr Syga

Pathologic diagnosis is a critical phase in deciding the optimal treatment procedure for dealing with colorectal cancer (CRC). Colonic polyps, precursors to CRC, can pathologically be classified into two major types: adenomatous and…

图像与视频处理 · 电气工程与系统科学 2025-02-11 Vanshali Sharma , Debesh Jha , M. K. Bhuyan , Pradip K. Das , Ulas Bagci

Recently, some research show that deep neural networks are vulnerable to the adversarial attacks, the well-trainned samples or patches could be used to trick the neural network detector or human visual perception. However, these adversarial…

计算机视觉与模式识别 · 计算机科学 2023-12-29 Xianyi Chen , Fazhan Liu , Dong Jiang , Kai Yan

Generative models can synthesize highly realistic content, so-called deepfakes, that are already being misused at scale to undermine digital media authenticity. Current deepfake detection methods are unreliable for two reasons: (i)…

计算机视觉与模式识别 · 计算机科学 2025-12-18 Sarim Hashmi , Abdelrahman Elsayed , Mohammed Talha Alam , Samuele Poppi , Nils Lukas
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