Preface; Acknowledgements; Contents; Abbreviations; List of Figures; List of Tables; 1 Introduction; 1.1 Introduction; 1.2 Biometric Recognition; 1.2.1 Verification; 1.2.2 Identification; 1.3 Indexing; 1.3.1 Challenges; 1.4 Biometric Indexing Techniques; 1.4.1 Key Feature Point Based Indexing Approaches; 1.4.2 Triplet-Based Indexing Approaches; 1.4.3 Match Score Based Indexing Approaches; 1.4.4 Other Indexing Approaches; 1.5 Benchmarking in Indexing and Performance Evaluation; 1.5.1 Databases; 1.5.2 Performance Metrics; 1.6 Summary; References

2 Hierarchical Decomposition of Extended Triangulation for Fingerprint Indexing 2.1 Introduction; 2.2 Indexing Framework; 2.2.1 Minutiae Extraction; 2.2.2 Computation of Delaunay Triangulation; 2.2.3 Retrieval of Extended Triplet Set; 2.2.4 Hierarchical Decomposition of Extended Set; 2.2.5 Enrollment; 2.3 Query Identification; 2.4 Experimental Results; 2.4.1 Parameter Selection; 2.4.2 Results; 2.4.3 Comparison with Other Related Approaches; 2.4.4 Retrieval Time; 2.5 Summary; References; 3 Efficient Score-Based Indexing Technique for Fast Palmprint Retrieval; 3.1 Introduction; 3.2 Indexing

4.4 Query Identification4.4.1 Fusion of Decisions Output; 4.5 Experimental Results; 4.5.1 Results; 4.5.2 Retrieval Time; 4.5.3 Scalability of the System; 4.5.4 Effect of Feature Type on the System Performance; 4.5.5 Comparison with Multi-biometric Systems; 4.5.6 Comparison with Other Related Indexing Techniques; 4.6 Summary; References; 5 Conclusions and Future Scope; 5.1 Salient Features of the Contributions; 5.2 Future Scope