Segmentation of Overlapped Region Using Morphological Processing
In an uncontrolled environment such as crime scene, collecting valid fingerprints is a very challenging task, due to the fact that fingerprints are often superimposed with some background. In some cases the background may be another fingerprint due to multiple touches by a person, resulting into segments of the overlapped fingerprints. In order to use existing fingerprints recognition systems for identifying such fingerprints, a method for separation of overlapped fingerprints is the current need. This separation takes few steps like segmentation of overlapped region, feature extraction and separation. This paper presents a novel method for segmentation of overlapped region based on morphological image processing. The algorithm is tested on overlapped fingerprints from simulated overlapped fingerprints database. Results indicate that the proposed algorithm is satisfactory for good quality images and it requires improvement for poor quality fingerprints in the overlapped region.
Keywords: Overlapped fingerprints, ridge orientation, segmentation, fingerprint patterns, morphology
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ABOUT THE AUTHORS
Vidyadevi G Biradar
is an Associate Professor, Dept. of ISE, Nitte Meenakshi Institute of Technology, Bangalore, India. She is presently pursuing her PhD in the field of Image analysis techniques for biometrics, under Visvesavaraya Technological University(VTU). She has received her BE and MTech qualifications from Gulbarga University and VTU respectively. She has more than 17 years of experience in teaching. Her research interests include image processing, database management systems, embedded systems and software engineering. She has more than 10 national and international publications. She is a member of CSI and ISTE.
Sarojadevi H
is a Professor & Head of the Dept. of CSE, NMAMIT, Nitte. She is a PhD graduate from Indian Institute of Science(IISc). She has received her BE and ME qualification from UVCE, Bangalore. She has more than 22 years of experience in teaching, research and industry. Her research interests include Computer Architecture, High Performance Computing and Image Processing. She has more than 35 national and international publications. She is a member of the technical committees for various journals and IEEE/other conferences at national and international level. She is life member of IISc Alumni Association, CSI and ISTE.
Vidyadevi G Biradar
is an Associate Professor, Dept. of ISE, Nitte Meenakshi Institute of Technology, Bangalore, India. She is presently pursuing her PhD in the field of Image analysis techniques for biometrics, under Visvesavaraya Technological University(VTU). She has received her BE and MTech qualifications from Gulbarga University and VTU respectively. She has more than 17 years of experience in teaching. Her research interests include image processing, database management systems, embedded systems and software engineering. She has more than 10 national and international publications. She is a member of CSI and ISTE.
Sarojadevi H
is a Professor & Head of the Dept. of CSE, NMAMIT, Nitte. She is a PhD graduate from Indian Institute of Science(IISc). She has received her BE and ME qualification from UVCE, Bangalore. She has more than 22 years of experience in teaching, research and industry. Her research interests include Computer Architecture, High Performance Computing and Image Processing. She has more than 35 national and international publications. She is a member of the technical committees for various journals and IEEE/other conferences at national and international level. She is life member of IISc Alumni Association, CSI and ISTE.
