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Recently, image manipulation has achieved rapid growth due to the advancement of sophisticated image editing tools. A recent surge of generated fake imagery and videos using neural networks is DeepFake. DeepFake algorithms can create fake…

Computer Vision and Pattern Recognition · Computer Science 2022-06-01 Naciye Celebi , Qingzhong Liu , Muhammed Karatoprak

The detection of digital face manipulation in video has attracted extensive attention due to the increased risk to public trust. To counteract the malicious usage of such techniques, deep learning-based deepfake detection methods have been…

Computer Vision and Pattern Recognition · Computer Science 2023-03-31 Yuhang Lu , Touradj Ebrahimi

In modern intelligent video surveillance systems, automatic anomaly detection through computer vision analytics plays a pivotal role which not only significantly increases monitoring efficiency but also reduces the burden on live…

Computer Vision and Pattern Recognition · Computer Science 2020-04-14 Sijie Zhu , Chen Chen , Waqas Sultani

Photographs are considered to be the most powerful and trustworthy media of expression. For a long time, those were accepted as proves of evidences in varied fields such as journalism, forensic investigations, military intelligence,…

Cryptography and Security · Computer Science 2013-07-01 Minati Mishra , Flt. Lt. Dr. M. C. Adhikary

During the investigation of criminal activity when evidence is available, the issue at hand is determining the credibility of the video and ascertaining that the video is real. Today, one way to authenticate the footage is to identify the…

Computer Vision and Pattern Recognition · Computer Science 2022-10-18 Akash Nagaraj , Mukund Sood , Vivek Kapoor , Yash Mathur , Bishesh Sinha

Facial recognition is fundamental for a wide variety of security systems operating in real-time applications. In video surveillance based face recognition, face images are typically captured over multiple frames in uncontrolled conditions;…

Computer Vision and Pattern Recognition · Computer Science 2022-11-08 Eker Onur , Bal Murat

Accurate camera calibration is a precondition for many computer vision applications. Calibration errors, such as wrong model assumptions or imprecise parameter estimation, can deteriorate a system's overall performance, making the reliable…

Computer Vision and Pattern Recognition · Computer Science 2021-07-29 Annika Hagemann , Moritz Knorr , Holger Janssen , Christoph Stiller

This review article surveys the current progresses made toward video-based anomaly detection. We address the most fundamental aspect for video anomaly detection, that is, video feature representation. Much research works have been done in…

Computer Vision and Pattern Recognition · Computer Science 2015-05-05 Yong Shean Chong , Yong Haur Tay

Surveillance cameras, which is a form of Cyber Physical System, are deployed extensively to provide visual surveillance monitoring of activities of interest or anomalies. However, these cameras are at risks of physical security attacks…

Cryptography and Security · Computer Science 2019-06-18 Jonathan Pan

With the headway of the advanced image handling software and altering tools, a computerized picture can be effectively controlled. The identification of image manipulation is vital in light of the fact that an image can be utilized as…

Multimedia · Computer Science 2017-03-31 Abhishek Kashyap , Rajesh Singh Parmar , Megha Agrawal , Hariom Gupta

With technological advances leading to an increase in mechanisms for image tampering, fraud detection methods must continue to be upgraded to match their sophistication. One problem with current methods is that they require prior knowledge…

Computer Vision and Pattern Recognition · Computer Science 2022-01-25 Robin Elizabeth Yancey

Crime generates significant losses, both human and economic. Every year, billions of dollars are lost due to attacks, crimes, and scams. Surveillance video camera networks are generating vast amounts of data, and the surveillance staff can…

Computer Vision and Pattern Recognition · Computer Science 2021-02-24 Guillermo A. Martínez-Mascorro , José R. Abreu-Pederzini , José C. Ortiz-Bayliss , Hugo Terashima-Marín

Videos are prone to tampering attacks that alter the meaning and deceive the audience. Previous video forgery detection schemes find tiny clues to locate the tampered areas. However, attackers can successfully evade supervision by…

Computer Vision and Pattern Recognition · Computer Science 2022-07-08 Yangming Zhou , Qichao Ying , Xiangyu Zhang , Zhenxing Qian , Sheng Li , Xinpeng Zhang

Anomaly detection in surveillance videos is attracting an increasing amount of attention. Despite the competitive performance of recent methods, they lack theoretical performance analysis, particularly due to the complex deep neural network…

Computer Vision and Pattern Recognition · Computer Science 2020-10-15 Keval Doshi , Yasin Yilmaz

Suspicious behavior is likely to threaten security, assets, life, or freedom. This behavior has no particular pattern, which complicates the tasks to detect it and define it. Even for human observers, it is complex to spot suspicious…

Computer Vision and Pattern Recognition · Computer Science 2021-02-24 Guillermo A. Martínez-Mascorro , José C. Ortiz-Bayliss , Hugo Terashima-Marín

Online media data, in the forms of images and videos, are becoming mainstream communication channels. However, recent advances in deep learning, particularly deep generative models, open the doors for producing perceptually convincing…

Computer Vision and Pattern Recognition · Computer Science 2022-12-13 Junke Wang , Zhenxin Li , Chao Zhang , Jingjing Chen , Zuxuan Wu , Larry S. Davis , Yu-Gang Jiang

Due to the widespread use of smartphones with high-quality digital cameras and easy access to a wide range of software apps for recording, editing, and sharing videos and images, as well as the deep learning AI platforms, a new phenomenon…

Computer Vision and Pattern Recognition · Computer Science 2023-09-08 Nikhil Sontakke , Sejal Utekar , Shivansh Rastogi , Shriraj Sonawane

With the immense number of videos being uploaded to the video sharing sites, issue of copyright infringement arises with uploading of illicit copies or transformed versions of original video. Thus safeguarding copyright of digital media has…

Computer Vision and Pattern Recognition · Computer Science 2016-10-31 Sanket Shinde , Girija Chiddarwar

As image tampering becomes ever more sophisticated and commonplace, the need for image forensics algorithms that can accurately and quickly detect forgeries grows. In this paper, we revisit the ideas of image querying and retrieval to…

Computer Vision and Pattern Recognition · Computer Science 2019-04-12 Joel Brogan , Paolo Bestagini , Aparna Bharati , Allan Pinto , Daniel Moreira , Kevin Bowyer , Patrick Flynn , Anderson Rocha , Walter Scheirer

The continued digitization of societal processes translates into a proliferation of time series data that cover applications such as fraud detection, intrusion detection, and energy management, where anomaly detection is often essential to…