47 citations · 313 across the 19 of their papers we have counts for
21 papers
Dictionary Attacks on Speaker Verification
Mirko Marras, Pawel Korus, Anubhav Jain +1
In this paper, we propose dictionary attacks against speaker verification - a novel attack vector that aims to match a large fraction of speaker population by chance. We introduce…
Hard-Attention for Scalable Image Classification
Athanasios Papadopoulos, Paweł Korus, Nasir Memon
Can we leverage high-resolution information without the unsustainable quadratic complexity to input scale? We propose Traversal Network (TNet), a novel multi-scale hard-attention a…
The Role of the Crowd in Countering Misinformation: A Case Study of the COVID-19 Infodemic
Nicholas Micallef, Bing He, Srijan Kumar +2
Fact checking by professionals is viewed as a vital defense in the fight against misinformation.While fact checking is important and its impact has been significant, fact checks co…
Empirical Evaluation of PRNU Fingerprint Variation for Mismatched Imaging Pipelines
Sharad Joshi, Pawel Korus, Nitin Khanna +1
We assess the variability of PRNU-based camera fingerprints with mismatched imaging pipelines (e.g., different camera ISP or digital darkroom software). We show that camera fingerp…
Fusion of Camera Model and Source Device Specific Forensic Methods for Improved Tamper Detection
Ahmet Gökhan Poyraz, Ahmet Emir Dirik, Ahmet Karaküçük +1
PRNU based camera recognition method is widely studied in the image forensic literature. In recent years, CNN based camera model recognition methods have been developed. These two…
Camera Fingerprint Extraction via Spatial Domain Averaged Frames
Samet Taspinar, Manoranjan Mohanty, Nasir Memon
Photo Response Non-Uniformity (PRNU) based camera attribution is an effective method to determine the source camera of visual media (an image or a video). To apply this method, ima…