Real and Fake Project

Master Thesis Thema:

• Comparison of the Detection Sensitivities of Human and Full-Reference Image Quality Assessment Models to Distortions in Natural and Non-natural Images

Measure JND by Psychopy

• We decide to use 2AFC (Two-Alternative Forced Choice) QUEST procedure (a bayesian adaptive psychometric method) Find the Just noticeable difference (JND)- minimum detectable distortion intensity

Heeger-Bergen texture synthesis algorithm

• Retain the first-order statistics of both its pixel intensity and responses to multi-orientation and multi-scale filters

Models

• Traditional:
• MSE, NLPD : low-level features
• SSIM, MS SSIM: structure information
• DL-based:
• LPIPS: deep features extracted by VGG-16
• DISTS: the combination of deep features and structure information