Perceptual Digital Imaging

7

Perceptual Thumbnail Generation

Wei Feng, Liang Wan, Zhouchen Lin, Tien-Tsin Wong and Zhi-Qiang Liu

7.1 Introduction

7.2 Traditional Thumbnail Generation

7.2.1 Signal-Level Thumbnail Generation

7.2.2 ROI-Based Thumbnail Generation

7.3 Perceptual Thumbnail Generation

7.3.1 Quality-Indicative Visual Cues

7.3.1.1 Low-Level Image Features

7.3.1.2 High-Level Semantic Features

7.3.2 A General Framework

7.3.3 State-of-the-Art Methods

7.4 Highlighting Blur in Thumbnails

7.4.1 Blur Estimation

7.4.1.1 Gradient-Based Blur Estimation

7.4.1.2 Scale-Space-Based Blur Estimation

7.4.2 Blur Visualization

7.4.3 Evaluation

7.5 Highlighting Noise in Thumbnails

7.5.1 Noise Estimation

7.5.1.1 Region-Based Noise Estimation

7.5.1.2 Multirate Noise Estimation

7.5.2 ...