41 citations · 123 across the 8 of their papers we have counts for
8 papers
Evaluating SSL and ViViT Architectures for Cross-Corpus Audio MOS Prediction via LODO Validation
Mustafa Ozan Duman, Ahmet Emir Dirik
Automatic Mean Opinion Score (MOS) prediction is essential for evaluating large-scale synthetic speech and audio enhancement systems, yet models frequently struggle with domain shi…
Enhancing Diameter Measurement Accuracy in Machine Vision Applications
Ahmet Gokhan Poyraz, Ahmet Emir Dirik, Hakan Gurkan +1
In camera measurement systems, specialized equipment such as telecentric lenses is often employed to measure parts with narrow tolerances. However, despite the use of such equipmen…
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…
PRNU Based Source Camera Attribution for Image Sets Anonymized with Patch-Match Algorithm
Ahmet Karaküçük, Ahmet Emir Dirik
Patch-Match is an efficient algorithm used for structural image editing and available as a tool on popular commercial photo-editing software. The tool allows users to insert or rem…
PRNU-Based Source Device Attribution for YouTube Videos
Emmanuel Kiegaing Kouokam, Ahmet Emir Dirik
Photo Response Non-Uniformity (PRNU) is a camera imaging sensor imperfection which has earned a great interest for source device attribution of digital videos. A majority of recent…
Analysis of Rolling Shutter Effect on ENF based Video Forensics
Saffet Vatansever, Ahmet Emir Dirik, Nasir Memon
ENF is a time-varying signal of the frequency of mains electricity in a power grid. It continuously fluctuates around a nominal value (50/60 Hz) due to changes in supply and demand…