1. Introduction

2. Shape Detection
2.1 Line Detection
2.2 Other Analytical Shapes
2.3 Irregular Shape Detection

3. Tone and Color

4. Speedup and Memory Saving

5. Hough Transform Applications
5.1 Traffic and Transport Applications
5.2 Biometrics and Man-Machine Interaction
5.3 3D Applications
5.4 Object Recognition
5.5 Object Tracking
5.6 Underwater Applications
5.7 Industrial and Commercial Applications
5.8 Medical Applications
5.9 Unconventional Applications

6. Conclusions