Fusion of Visual and Thermal Face Recognition Techniques: A ...

Contents
1. Introduction.............................................................................................................. 1
1.1 Fundamental Issues in Face Recognition........................................................... 2
1.2 Visual Face Recognition.................................................................................... 6
1.3 Thermal Face Recognition................................................................................. 9
1.4 Fusion Approaches to Face Recognition ......................................................... 11
2. Data Acquisition .................................................................................................... 15
2.1 Image Databases .............................................................................................. 16
2.2 Image Acquisition Setup.................................................................................. 17
2.2 Fusion of Visual and Thermal Images............................................................. 21
3. Feature Extraction from Thermal Images.............................................................. 22
3.1 Variations......................................................................................................... 22
3.2 Face Detection from Thermal Images ............................................................. 27
3.3 Eyeglass Detection and Removal from Thermal Images................................. 31
4. Comparison of Face Recognition Techniques....................................................... 37
4.1 Feature Based Face Recognition...................................................................... 38
4.2 Appearance Based Face Recognition .............................................................. 43
4.3 Decision Fusion ............................................................................................... 50
4.4 Visual and Thermal Comparison Results ........................................................ 52
4.5 Fusion of Visual and Thermal Face Recognition ............................................ 54
5. Conclusion ............................................................................................................. 58
References.................................................................................................................. 60
Vita............................................................................................................................. 68
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