Research on Correction Method of Palatal Rugae Morphology in Forensic Digital Identification System

SUMMARY: Palatal rugae is an irregular soft tissue, which is located in the front third of the hard palate, and is asymmetrically distributed from the middle suture to the sides. The difference, stability and extensive characteristics of palatal rugae morphology have gradually make it a characterist...

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Autores principales:	Shangguan,Hong, Li,Bing, Zhang,Xiong, Ji,Xin-Xin, Kwon,Tae-Geon, Wu,Xiu-Ping
Lenguaje:	English
Publicado:	Sociedad Chilena de Anatomía 2019
Materias:	Forensic odontology Palatal rugae Forensic identification Direction vector Image correction
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022019000100324
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spelling	oai:scielo:S0717-950220190001003242019-09-11Research on Correction Method of Palatal Rugae Morphology in Forensic Digital Identification SystemShangguan,HongLi,BingZhang,XiongJi,Xin-XinKwon,Tae-GeonWu,Xiu-Ping Forensic odontology Palatal rugae Forensic identification Direction vector Image correction SUMMARY: Palatal rugae is an irregular soft tissue, which is located in the front third of the hard palate, and is asymmetrically distributed from the middle suture to the sides. The difference, stability and extensive characteristics of palatal rugae morphology have gradually make it a characteristic indicator of forensic identification. However, a mature digital palatal rugae identification system has not yet been established at present. Feature extraction is the premise of palatal rugae image recognition. In order to obtain palatal rugae feature information in all directions and improve the reliability of forensic identification, it is necessary to collect palatal rugae images from a plurality of different angles. When the collected images are sent to the recognition system, the diversity of angles will often cause problems such as error recognition. If the tilted images are not rotated properly, it will make the forensic identification face many difficulties. To solve the problem of image skew caused by the diversity of acquisition angle, an algorithm based on orientation vector to correct the tilted palatal rugae images was proposed in this paper. Firstly, the criteria for standard palatal rugae image and the selection rules for feature points were set; Secondly, characterizing feature points according to the rules, and fitting two lines and find their direction vector; Finally, to obtain the corrected images, the tilted images were rotated by the angle determined by the two direction vectors. Simulation results show that the proposed algorithm can correct the tilted palatal rugae images collected from different angles and has strong robustness.info:eu-repo/semantics/openAccessSociedad Chilena de AnatomíaInternational Journal of Morphology v.37 n.1 20192019-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022019000100324en10.4067/S0717-95022019000100324
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Forensic odontology Palatal rugae Forensic identification Direction vector Image correction
spellingShingle	Forensic odontology Palatal rugae Forensic identification Direction vector Image correction Shangguan,Hong Li,Bing Zhang,Xiong Ji,Xin-Xin Kwon,Tae-Geon Wu,Xiu-Ping Research on Correction Method of Palatal Rugae Morphology in Forensic Digital Identification System
description	SUMMARY: Palatal rugae is an irregular soft tissue, which is located in the front third of the hard palate, and is asymmetrically distributed from the middle suture to the sides. The difference, stability and extensive characteristics of palatal rugae morphology have gradually make it a characteristic indicator of forensic identification. However, a mature digital palatal rugae identification system has not yet been established at present. Feature extraction is the premise of palatal rugae image recognition. In order to obtain palatal rugae feature information in all directions and improve the reliability of forensic identification, it is necessary to collect palatal rugae images from a plurality of different angles. When the collected images are sent to the recognition system, the diversity of angles will often cause problems such as error recognition. If the tilted images are not rotated properly, it will make the forensic identification face many difficulties. To solve the problem of image skew caused by the diversity of acquisition angle, an algorithm based on orientation vector to correct the tilted palatal rugae images was proposed in this paper. Firstly, the criteria for standard palatal rugae image and the selection rules for feature points were set; Secondly, characterizing feature points according to the rules, and fitting two lines and find their direction vector; Finally, to obtain the corrected images, the tilted images were rotated by the angle determined by the two direction vectors. Simulation results show that the proposed algorithm can correct the tilted palatal rugae images collected from different angles and has strong robustness.
author	Shangguan,Hong Li,Bing Zhang,Xiong Ji,Xin-Xin Kwon,Tae-Geon Wu,Xiu-Ping
author_facet	Shangguan,Hong Li,Bing Zhang,Xiong Ji,Xin-Xin Kwon,Tae-Geon Wu,Xiu-Ping
author_sort	Shangguan,Hong
title	Research on Correction Method of Palatal Rugae Morphology in Forensic Digital Identification System
title_short	Research on Correction Method of Palatal Rugae Morphology in Forensic Digital Identification System
title_full	Research on Correction Method of Palatal Rugae Morphology in Forensic Digital Identification System
title_fullStr	Research on Correction Method of Palatal Rugae Morphology in Forensic Digital Identification System
title_full_unstemmed	Research on Correction Method of Palatal Rugae Morphology in Forensic Digital Identification System
title_sort	research on correction method of palatal rugae morphology in forensic digital identification system
publisher	Sociedad Chilena de Anatomía
publishDate	2019
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022019000100324
work_keys_str_mv	AT shangguanhong researchoncorrectionmethodofpalatalrugaemorphologyinforensicdigitalidentificationsystem AT libing researchoncorrectionmethodofpalatalrugaemorphologyinforensicdigitalidentificationsystem AT zhangxiong researchoncorrectionmethodofpalatalrugaemorphologyinforensicdigitalidentificationsystem AT jixinxin researchoncorrectionmethodofpalatalrugaemorphologyinforensicdigitalidentificationsystem AT kwontaegeon researchoncorrectionmethodofpalatalrugaemorphologyinforensicdigitalidentificationsystem AT wuxiuping researchoncorrectionmethodofpalatalrugaemorphologyinforensicdigitalidentificationsystem
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Research on Correction Method of Palatal Rugae Morphology in Forensic Digital Identification System

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