02742nam a2200205   4500001000700000010001800007100004100025101000800066200010600074210006400180215002000244225003300264300004900297330198500346606001802331606001702349606002002366606001402386710013602400395214  a9789279333903  a20180907d2013       y0pory50      ba  aeng  aStudy on fingerprint recognition for childrenbRecurso eletrónicoefinal reportfGuenter Schumacher  aLuxembourgcPublications Office of the European Uniond2013  a1 CD-ROMd12 cm  aJRC Technical Reportsv85145  aFicheiro de 2,82 MB em formato PDF (102 p.).  aList of Abbreviations. List of Figures. Executive Summary. Operational Setting of the Study. Chapter 1: The Challenge and the Study’s Approach. 1.1 Introduction. 1.2 The JRC study. 1.2.1 Request from the European Parliament. 1.2.2 The challenge about relevant data. 1.2.3 The data from Portugal. 1.3 Research Methodology. 1.4 Structure of the report. Chapter 2: Existing Knowledge and Related Studies. 2.1 Fingerprint Recognition and its Problem with Children. 2.1.1 Fingerprints. 2.1.2 Recognition process. 2.1.3 Acquisition of fingerprint image. 2.1.4 Image processing. 2.1.5 Feature extraction. 2.1.6 Storing of and comparison with the reference fingerprint(s). 2.1.7 Error rates. 2.1.8 The Case of Children. 2.2 Related Studies. 2.2.1 TNO Study. 2.2.2 BIODEV II. 2.2.3 Ultra-Scan/NIJ Study.2.2.4 U Göttingen/ BKA Study. 2.3 Summary conclusion from pre-existing information. Chapter 3: The Data Source. 3.1 Child Fingerprints from Portugal. 3.2 The Structure of the Data. 3.3 Quality of the Data. Chapter 4: Analysis of the Individual Recognition Steps. 4.1 Fingerprint Recognition Algorithms. 4.1.1 Used matchers. 4.1.2 Results with NIST’s bozorth3. 4.1.3 Results with Vendor 1. 4.1.4 Results with Vendor 2. 4.1.5 Relation between Image Quality Scores and Recognition Rate. 4.2 Image Acquisition.4.2.1 General observations. 4.2.2 Quantification of distortion. 4.2.3 Potential impact of distortion. Chapter 5: Analysis of the Growth Effect. Chapter 6: Impact of Acquisition Devices. 6.1 Problems with Optical Fingerprint Scanners. 6.2 Potential Alternative Devices. 6.2.1 Multispectral sensors from Lumidigm. 6.2.2 Touchless sensors from TBS Biometrics. 6.2.3 New Guardian from Cross Match. 6.3 Experiments. 6.3.1 Selection of test persons. 6.3.2 Set of experiments. 6.3.3 Results. Chapter 7: Conclusions and Recommendations. 7.1 Conclusions. 7.2 Recommendations. 7.3 Open questions. Appendix 1: Important Concepts Related to Fingerprints. Appendix 2: List of References.  aDACTILOSCOPIA  aMETODOLOGIAS  aESTUDO DE CASOS  aCRIANÇA  aCOMISSÃO EUROPEIAbJoint Research Centre. Institute for the Protection and Security of the Citizen. Digital Citizen Security Unit