no code implementations • 3 Mar 2023 • Samuel Fernández-Menduiña, Eduardo Pavez, Antonio Ortega
Most codec designs rely on the mean squared error (MSE) as a fidelity metric in rate-distortion optimization, which allows to choose the optimal parameters in the transform domain but may fail to reflect perceptual quality.
no code implementations • 24 Feb 2022 • Samuel Fernández-Menduiña, Fernando Pérez-González, Miguel Masciopinto
The photoresponse non-uniformity (PRNU) is a camera-specific pattern, widely adopted to solve multimedia forensics problems such as device identification or forgery detection.