Preface Acknowledgements INTRODUCTION TO THE INVERSE PROBLEMS OF BIOMETRICS Attacks on Biometric Systems Classical Direct and Inverse Problems Direct and Inverse Problems of Biometrics Basic Notion of Biometric Data Examples of Synthetic Biometric Data Conversating of Biometric Information Design of Biometric Devices and Systems Applications of Inverse Biometrics Ethical and Social Aspects of Inverse Biometrics Summary Problems Further Reading References BASICS OF SYNTHETIC BIOMETRIC DATA STRUCTURE DESIGN Basic Concepts of Synthetic Biometric Data Structure Design Synthesis Strategies Information Carried by Biometric Data Generation of Random Biometric Attributes Degradation Model in Synthesis of Biometric Data Image Warping Deformation by Interpolation and Approximation Extracting and Generating Features Summary Problems Further Reading References SYNTHETIC SIGNATURES Introduction Basics of Signature Synthesis Signature Synthesis Techniques Statistically Meaningful Synthesis Implementation Summary Problems Further Reading References SYNTHETIC FINGERPRINTS Introduction Modeling a Fingerprint Extraction of Features Library of Topological Primitives Local Generators: Fingerprint Primitives Global Generators: Orientation Map Polar Transformation of Orientation Map Generating Synthetic Fingerprint Images from an Orientation Map Other Global Topological Models Summary Problems Further Reading References SYNTHETIC FACES Introduction to Facial Expressions Design Modeling of Facial Expressions Facial Topology Transformation and Manipulation Local Facial Models Facial Synthesizers Automated Support of Deceit Detection Summary Problems Further Reading References SYNTHETIC IRIS State-of-the-Art Iris Synthesis Eye Model Iris Image Processing Iris Synthesis by Transformation Iris Synthesis by Assembling Summary Problems Further Reading References BIOMETRIC DATA STRUCTURE REPRESENTATION BY VORONOI DIAGRAMS Voronoi Data Structure Basics of Voronoi Diagram Technique Direct and Inverse Voronoi Transform Properties Voronoi Data Structure in Topological Analysis and Synthesis Topological Compatibility of the Voronoi Diagram Implementing the Discrete Voronoi Transform with a Distance Transform Calculating Area Voronoi Diagrams using Nearest-Neighbor Transform Summary Problems Further Reading References SYNTHETIC DNA Introduction Basics of DNA Biometrics DNA/Protein Synthesis Techniques Examples of Markov Models Postprocessing: Pairwise Alignments Algorithm for Sequence Generation Summary Problems Further Reading References INDEX.