title: Performance analysis of various techniques applied in human identification using dental X-rays.
abstract: This paper proposes a novel approach for automating the analysis of identifying the person based on their ante mortem and postmortem reports. This approach involves three techniques (i.e.) morphological contour detector, Gaussian filtering and an existing semi-automatic contour extraction method. Forensic dentistry involves the identification of people based on their dental records, mainly available as radiograph images. Our goal is to automate this process using image processing and pattern recognition techniques. Given a postmortem radiograph, we search a database of antemortem radiographs in order to retrieve the closest match with respect to some salient features. In this paper, we use the contours of the teeth as the feature for matching. The algorithm completes the task in three steps: radiograph segmentation, pixel classification and contour matching. In this paper a hit rate of 0.7 is achieved by the Morphological contour detectors which are comparable with the other two methods.
authors.affiliation: Electronics and Communication Engineering Department, Thiagarajar College of Engineering, Madurai, Tamilnadu, India. au_banu@yahoo.com
authors.forename: A
authors.initials: A
authors.lastname: Banumathi
authors.forename: B
authors.initials: B
authors.lastname: Vijayakumari
authors.forename: A
authors.initials: A
authors.lastname: Geetha
authors.forename: N
authors.initials: N
authors.lastname: Shanmugavadivu
authors.forename: S
authors.initials: S
authors.lastname: Raju
mesh_terms: D000465:Algorithms; D001331:Automation; D001699:Biometry / Q000379:methods; D003792:Dental Records; D005553:Forensic Dentistry / Q000379:methods* / Q000706:statistics & numerical data; D006801:Humans; D010363:Pattern Recognition, Automated / Q000379:methods*; D011857:Radiographic Image Interpretation, Computer-Assisted / Q000379:methods*; D012984:Software; D014070:Tooth / Q000000981:diagnostic imaging*