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Traditional feature matching methods such as scale-invariant feature transform (SIFT) usually use image intensity or gradient information to detect and describe feature points; however, both intensity and gradient are sensitive to nonlinear…

计算机视觉与模式识别 · 计算机科学 2018-04-26 Jiayuan Li , Qingwu Hu , Mingyao Ai

Scale-invariance, good localization and robustness to noise and distortions are the main properties that a local feature detector should possess. Most existing local feature detectors find excessive unstable feature points that increase the…

计算机视觉与模式识别 · 计算机科学 2021-02-03 Morteza Ghahremani , Yonghuai Liu , Bernard Tiddeman

In this work, we deal with the problem of re compression based image forgery detection, where some regions of an image are modified illegitimately, hence giving rise to presence of dual compression characteristics within a single image.…

图像与视频处理 · 电气工程与系统科学 2024-07-04 Jamimamul Bakas , Praneta Rawat , Kalyan Kokkalla , Ruchira Naskar

Copy-move image forgery aims to duplicate certain objects or to hide specific contents with copy-move operations, which can be achieved by a sequence of manual manipulations as well as up-to-date deep generative network-based swapping. Its…

计算机视觉与模式识别 · 计算机科学 2025-12-09 Liangwei Jiang , Jinluo Xie , Yecheng Huang , Hua Zhang , Hongyu Yang , Di Huang

In this paper, we propose a new approach for keypoint-based object detection. Traditional keypoint-based methods consist in classifying individual points and using pose estimation to discard misclassifications. Since a single point carries…

计算机视觉与模式识别 · 计算机科学 2009-02-02 Marcelo Hashimoto , Roberto M. Cesar

Most popular hand-crafted key-point detectors such as Harris corner, SIFT, SURF aim to detect corners, blobs, junctions or other human defined structures in images. Though being robust with some geometric transformations, unintended…

计算机视觉与模式识别 · 计算机科学 2020-10-14 Thanh Hong-Phuoc , Ling Guan

Image manipulation and forgery detection have been a topic of research for more than a decade now. New-age tools and large-scale social platforms have given space for manipulated media to thrive. These media can be potentially dangerous and…

计算机视觉与模式识别 · 计算机科学 2021-11-25 Umar Masud , Anupam Agarwal

Digital Photo images are everywhere, on the covers of magazines, in newspapers, in courtrooms, and all over the Internet. We are exposed to them throughout the day and most of the time. Ease with which images can be manipulated; we need to…

计算机视觉与模式识别 · 计算机科学 2013-02-14 S. Murali , Govindraj B. Chittapur , Prabhakara H. S , Basavaraj S. Anami

While image forensics is concerned with whether an image has been tampered with, image anti-forensics attempts to prevent image forensics methods from detecting tampered images. The competition between these two fields started long before…

计算机视觉与模式识别 · 计算机科学 2024-05-07 Eren Tahir , Mert Bal

Advances in photo editing and manipulation tools have made it significantly easier to create fake imagery. Learning to detect such manipulations, however, remains a challenging problem due to the lack of sufficient amounts of manipulated…

计算机视觉与模式识别 · 计算机科学 2018-09-07 Minyoung Huh , Andrew Liu , Andrew Owens , Alexei A. Efros

Deepfake detection methods based on convolutional neural networks (CNN) have demonstrated high accuracy. \textcolor{black}{However, these methods often suffer from decreased performance when faced with unknown forgery methods and common…

计算机视觉与模式识别 · 计算机科学 2023-07-14 Sitong Liu , Zhichao Lian , Siqi Gu , Liang Xiao

Keypoint detection underpins many vision tasks, including pose estimation, viewpoint recovery, and 3D reconstruction, yet modern neural models remain vulnerable to small input perturbations. Despite its importance, formal robustness…

计算机视觉与模式识别 · 计算机科学 2026-03-09 Xusheng Luo , Changliu Liu

Distinguishing manipulated from real images is becoming increasingly difficult as new sophisticated image forgery approaches come out by the day. Naive classification approaches based on Convolutional Neural Networks (CNNs) show excellent…

计算机视觉与模式识别 · 计算机科学 2019-11-28 Davide Cozzolino , Justus Thies , Andreas Rössler , Christian Riess , Matthias Nießner , Luisa Verdoliva

Recent advances in deep learning algorithms have shown impressive progress in image copy-move forgery detection (CMFD). However, these algorithms lack generalizability in practical scenarios where the copied regions are not present in the…

计算机视觉与模式识别 · 计算机科学 2024-04-29 Yuanman Li , Yingjie He , Changsheng Chen , Li Dong , Bin Li , Jiantao Zhou , Xia Li

We present a hybrid image classifier by mode-selective image upconversion, single pixel photodetection, and deep learning, aiming at fast processing a large number of pixels. It utilizes partial Fourier transform to extract the signature…

光学 · 物理学 2021-04-21 Santosh Kumar , Ting Bu , He Zhang , Irwin Huang , Yuping Huang

We introduce Forensim, an attention-based state-space framework for image forgery detection that jointly localizes both manipulated (target) and source regions. Unlike traditional approaches that rely solely on artifact cues to detect…

计算机视觉与模式识别 · 计算机科学 2026-02-11 Soumyaroop Nandi , Prem Natarajan

A robust algorithm solution is proposed for tracking an object in complex video scenes. In this solution, the bootstrap particle filter (PF) is initialized by an object detector, which models the time-evolving background of the video signal…

计算机视觉与模式识别 · 计算机科学 2015-09-29 Yi Dai , Bin Liu

With the rapid development of deep learning technology, more and more face forgeries by deepfake are widely spread on social media, causing serious social concern. Face forgery detection has become a research hotspot in recent years, and…

计算机视觉与模式识别 · 计算机科学 2021-09-30 Hao Lin , Weiqi Luo , Kangkang Wei , Minglin Liu

Anti-counterfeiting QR codes are widely used in people's work and life, especially in product packaging. However, the anti-counterfeiting QR code has the risk of being copied and forged in the circulation process. In reality, copying is…

计算机视觉与模式识别 · 计算机科学 2022-01-20 Zhongyuan Guo , Hong Zheng , Changhui You , Tianyu Wang , Chang Liu

General-purpose ID, or travel, document image- and video-based verification systems have yet to achieve good enough performance to be considered a solved problem. There are several factors that negatively impact their performance, including…

计算机视觉与模式识别 · 计算机科学 2024-10-04 Maxime Talarmain , Carlos Boned , Sanket Biswas , Oriol Ramos