Results 41 to 50 of about 1,324 (197)

Forensic of video object removal tamper based on 3D dual-stream network

Tongxin xuebao, 2021
In order to solve the problems of inaccurate temporal detection and location of the object removal tampered video， a video tamper forensics method based on 3D dual-stream network was proposed.Firstly， the spatial rich model （SRM） layer was used to ...
Lizhi XIONG, Mengqi CAO, Zhangjie FU
doaj   +2 more sources

Forensic analysis of video file formats

Digital Investigation, 2014
AbstractVideo file format standards define only a limited number of mandatory features and leave room for interpretation. Design decisions of device manufacturers and software vendors are thus a fruitful resource for forensic video authentication. This paper explores AVI and MP4-like video streams of mobile phones and digital cameras in detail.
Thomas Gloe, André Fischer, Matthias Kirchner   +2 more
openaire   +1 more source

Modeling and Output Optimization of Triboelectric Microphone for Acoustic Energy Harvesting

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This work elucidates the fundamental multiphysics coupling mechanisms governing acoustic T‐phone, providing a critical theoretical foundation and a predictive design paradigm for the future engineering and deployment of next‐generation, self‐powered acoustic sensors.
Dan Liu, Jie Zhu, Shilong Wang, Chaobin Jia, Tao Jiang, Guofei Zhou, Jiajia Shao   +6 more
wiley   +1 more source

CNN-Based Multi-Modal Camera Model Identification on Video Sequences

Journal of Imaging, 2021
Identifying the source camera of images and videos has gained significant importance in multimedia forensics. It allows tracing back data to their creator, thus enabling to solve copyright infringement cases and expose the authors of hideous crimes.
Davide Dal Cortivo, Sara Mandelli, Paolo Bestagini, Stefano Tubaro   +3 more
doaj   +1 more source

Anti- Forensics: The Tampering of Videos

International Journal of Forensic Sciences, 2021
In the context of forensic investigations, the traditional understanding of evidence is changing nowadays where most prosecutors, lawyers and judges heavily rely on multimedia substantiations. However, the evolution of easy-to-use media manipulating tools, made it very easy for almost any (technical) person to alter the content of a digital media (e.g.
null Hasan Fayyad-Kazan, null Hejase HJ, null Moukadem I, null Rkein H, null Kobeissi K   +4 more
openaire   +1 more source

Do witnesses of functional/dissociative seizures recall them accurately? A UK experimental study of semiology recall at clinically relevant time points with a pilot intervention

Epilepsia, EarlyView.
Abstract Objective Different causes of transient loss of consciousness (TLOC) carry distinct risks and require different management. Early accurate diagnosis is essential to guide counseling, investigation, and referral. In routine practice, frontline clinicians and specialists often rely on eyewitness accounts, yet the reliability of witness testimony
Adam John Noble, Steven Lane, Amina Al‐Khaddar, Annabelle Blundy, Brenna Dubois, Chloe Pearce, Laszlo Sztriha, Graham Powell, Alistair Wardrope, Rajiv Mohanraj, Anthony Guy Marson, Markus Reuber   +11 more
wiley   +1 more source

Experimental and Numerical Investigation of Cedar Façade Flame Spread With Respect to Sidewall

Fire and Materials, EarlyView.
ABSTRACT In response to growing energy conservation and carbon neutrality efforts, façade systems incorporating wooden materials have attracted increasing attention, which in turn raises concerns about their combustibility. This study presents a combined experimental and numerical investigation of flame spread along cedar façades.
Xukun Sun, Hideki Yoshioka, Takafumi Noguchi, Yuhei Nishio, Manabu Kanematsu, Biao Zhou, Mingwei Xu   +6 more
wiley   +1 more source

TFD-Video: Threshold-Aware Federated Deepfake Detection for Video Forensics

IEEE Access
Deepfakes and other AI-based manipulated and synthesized videos pose a rising threat, yet training robust detectors under federated settings is challenging, where data is siloed and communication is limited.
Maryam Al-Fehani, Abdullatif Al-Baseer, Saif Al-Kuwari   +2 more
doaj   +1 more source

Video surveillance and multimedia forensics

Proceedings of the First ACM workshop on Multimedia in forensics, 2009
This paper reports an example of application (i.e., trajectory analysis) in which forensics and video surveillance techniques are jointly employed for providing a new tool of multimedia forensics. Advanced video surveillance techniques are used to extract from a multi-camera system the trajectories of the moving people which are then modelled by either
Simone Calderara, Andrea Prati 0001, Rita Cucchiara   +2 more
openaire   +4 more sources

Mechanical Behaviour of Vacuum‐Infused GFRP Composites at Elevated Temperatures—Influence of Fibre Architecture

Fire and Materials, EarlyView.
ABSTRACT This study addresses the influence of fibre architecture on the mechanical properties of vacuum‐infused glass fibre reinforced polymer (GFRP) composites at elevated temperatures (ET). Laminates with three different fibre configurations—unidirectional (UD), bidirectional 0°/90° cross‐ply (BD), and ±45° off‐axis angle‐ply (OA) – were tested in ...
Eloísa Castilho, João P. Firmo, Mário Garrido, João R. Correia, Afonso Ataíde   +4 more
wiley   +1 more source