• The korean journal of orthodontics
• /
• v.34 no.4 s.105
• /
• pp.279-287
• /
• 2004

In growing patients with Class III malocclusion, the various patterns of maxillofacial growth are a key element that affects the success or failure of treatment. Therefore it is important to correctly predict maxillofacial growth before initiating treatment. The purpose of this study was to find out the correlation between the maxillofacial morphology of parents and their Class III children by analyzing lateral cephalograms and hereditary factors. Among Class III preadolescent children, 50 families were obtained. To find out the specific hereditary factors involved, fingerprints were obtained and genetic correlation with the maxillofacial morphology was analyzed. The following conclusions were made. 1. A significant correlation (P<0.05-0.00l) was found in many of the cephalometric measurements between the offspring and their parents. The correlation in the skeleton measurements was higher than in the denture measurements. The father-offspring correlation was higher than the mother-offspring correlation 2. A significant correlation (P<0.05-0.00l) was found in fingerprint units between the offspring and their parents. The mother-offspring correlation was higher than the father-offspring correlation. 3. Between the maxillofacial morphology and fingerprint units, there was significant genetic correlation (P<0.05-0.01). Based on the analysis of genetic correlation, higher correlation was found in the parent-son pairing than the parent-daughter pairing.

• Journal of the Institute of Electronics Engineers of Korea SP
• /
• v.41 no.2
• /
• pp.89-98
• /
• 2004

In this paper, we implement a digital holographic security card system that combines digital holographic memory using random phase encoded reference beams with electrical biometrics. Digitally encoded data including a document, a picture of face, and a fingerprint are recorded by multiplexing of holographic memory. A random phase mask encoding reference beams are used as a decoded key to protect illegal counterfeit. As a result, we can achieve a raw BER of 3.6${\times}$10-4 and shift selectivity of 4${\mu}{\textrm}{m}$ using the 2D random phase mask. Also, we develop a recording pattern and image processing which are suitable for a low cost reader without a position sensing photo-detector for real time data extraction and remove danger of fraud from unauthorized person by comparing the reconstructed holographic data with the live fingerprint data.

• Convergence Security Journal
• /
• v.22 no.4
• /
• pp.141-146
• /
• 2022

The iris, a biometric information, is safe, unique, and reliable, such as fingerprints, and is personal information that can significantly lower the misrecognition rate than other biometric authentication. However, due to the nature of biometric authentication, it is impossible to replace it if it is stolen. There is a case in which an actual iris photo is taken and 3d printed so that the eyes work as if they were in front of the camera. As such, there is a possibility of iris leakage through high-definition images and photos. In this paper, we propose to improve iris masking performance by supplementing iris region masking research based on existing blurring techniques. Based on the results derived in this study, it is expected that it can be used for the security of video conference programs and electronic devices.

• Korean Journal of Oriental Medicine
• /
• v.8 no.2 s.9
• /
• pp.23-35
• /
• 2002

통과대명청대진단학발전사적고찰(通過對明淸代診斷學發展史的考察), 득도료여하결론(得到了如下結論):도료명대(到了明代), 출현료대량적유관망진적전문서적(出現了大量的有關望診的專門書籍), 정차(井且), 개시대소아지문진행요망진연구(開始對小兒指紋進行了望診硏究), 환유(還有), 대설진적발전이경유료탁월인식(對舌診的發展已經有了卓越認識). 명대적사진화변증학설적발전여오우가적(明代的四診和辨證學說的發展與吳又可的) ${\ulcorner}$온역론(溫疫論)${\lrcorner}$ 개시거두적온병학설적발전유밀녕접적연계(開始據頭的溫病學說的發展有密接的連繫). 도료명대(到了明代), 이경대륙경변증(已經對六經辨證), 장부변증화팔강변증유료계통면완선적변증체계(臟腑辨證和八綱辨證有了系統面完善的辨證體系), 특별시개시출현료온병변증(特別是開始出現了溫病辨證). 대우청대적망진적발전특징(對于淸代的望診的發展特徵), 가이귀납위대우설진적대량적연구화유관망진적전문서적적출현(可以歸納爲對于舌診的大量的硏究和有關望診的專門書籍的出現). 특별시수착온병학설약발전면공동발전적설진적만화야흔돌출.

• The Journal of Korean Institute of Communications and Information Sciences
• /
• v.14 no.6
• /
• pp.663-674
• /
• 1989

In order to design the automatic processing system of image document, the pattern segmentation of image document and classification methods are presented. The contour extraction using first order differential operator of Gauassian distribution fucntions, the image segmentation using the chain code, and the pattern classication using the second order moments and two=dimensional Rf distance(in transform domain) are implemented. The resuts applied in specially documantated image shows to classify the characters, fingerprints, seals etc well. And the utility of the used algorithms is verified.

• The Journal of Korean Institute of Communications and Information Sciences
• /
• v.39C no.11
• /
• pp.994-999
• /
• 2014

Nowadays we use biometrics such as face, fingerprint or palm print for registration and authentication with smart phone. When use camera function of smart phone, normally they overlay a specific image on camera preview as guideline and induce user to take picture uniformly. In this paper, use palm print for authentication factor with smart phone, we propose a new guideline and show the result about user experiment in terms of authentication success ratio.

• Proceedings of the Korea Inteligent Information System Society Conference
• /
• 2005.11a
• /
• pp.526-535
• /
• 2005

우리나라의 주민등록증은 주소지, 주민등록 변호, 얼굴사진, 지문 등 개개인의 방대한 정보를 가진다. 현재의 플라스틱 주민등록증은 위조 및 변조가 쉽고 날로 전문화 되어가고 있다. 따라서 육안으로 위조 및 변조 사실을 쉽게 확인하기가 어려워 사회적으로 많은 문제를 일으키고 있다. 이에 본 논문에서는 주민등록증 영상을 자동 인식할 수 있는 개선된 ART2 기반 RBF 네트워크와 얼굴인증을 이용한 주민등록증 자동 인식 방법을 제안한다. 제안된 방법은 주민등록증 영상에서 주민등록번호와 발행일을 추출하기 위하여 영상을 소벨마스크와 미디언 필터링을 적용한 후에 수평 스미어링을 적용하여 주민등록번호와 발행일 영역을 검출한다. 그리고 4 방향 윤곽선 추적 알고리즘으로 개별 문자를 추출하기 위한 전 단계로 주민등록증 영상에 대해 고주파 필터링을 적용하여 주민등록증 영상 전체를 이진화 한다. 이진화된 주민등록영상에서 COM 마스크를 적용하여 주민등록번호와 발행일 코드를 복원하고 검출된 각 영역에 대해 4 방향 윤곽선 추적 알고리즘으로 개별 문자를 추출한다. 추출된 개별 문자는 개선된 ART2 기반 RBF 네트워크를 제안하여 인식에 적용한다. 제안된 ART2 기반 RBF 네트워크는 학습 성능을 개선하기 위하여 중간충과 출력층의 학습에 퍼지 제어 기법을 적용하여 학습률을 동적으로 조정한다. 얼굴인증은 템플릿 매칭 알고리즘을 이용하여 얼굴 템플릿 데이터베이스를 구축하고 주민등록증애서 추출된 얼굴영역과의 유사도를 측정하여 주민등록증 얼굴 영역의 위조여부를 판별한다.

• Parasites, Hosts and Diseases
• /
• v.23 no.2
• /
• pp.313-323
• /
• 1985

Boophilus microplus (Canestrini, 1887) female specimens were subjected to scanning electron microscopy for the observation of surface fine structures. Morphological characteristics observed were summarized as follows: 1. The palpi were wider than long, and compressed, ridged dorsally and laterally. There were usually four pairs of ventro-internal setae on the articles. 2. The hypostome dentition was usually 4/4 but occasionally 5/5. 3. The basis capituli were hexagonal dorsally and the porose area was distinct with the holes developed well. 4. There were numerous folds resembling finger prints around the female genital pore. 5. A pair of anal lobes with specified setae on them was also rocognized as one of the morphological characteristics.

• KIPS Transactions on Computer and Communication Systems
• /
• v.2 no.12
• /
• pp.511-516
• /
• 2013

The cases of identification forgery and counterfeiting are increasing under the current identification system, which was established based on social conditions and administrative environments over 20 years ago. This leads to an increase of various criminal acts including illegal loan using fake ID and a number of damages caused out of good intentions that result in interference with the operations of public organizations. In addition, according to the advancement of information society, privacy protection has emerged as an important issue. However, ID card exposes individuals' personal information, such as names, resident registration numbers, photos, addresses and fingerprints, and thus the incidents associated with illegal use of personal information are increasing continuously. Accordingly, this study aimed at examining the issues of ID card forgery/counterfeiting and privacy protection and at proposing a next-generation identification system to supplement such weaknesses. The top priority has been set as prevention of forgery/counterfeiting and privacy protection in order to ensure the most important function of national identification system, which is user identification.

• Journal of Oral Medicine and Pain
• /
• v.31 no.1
• /
• pp.27-36
• /
• 2006

The cases of unidentified individual remains submitted to Forensic dentistry section in National Institute of Scientific Investigation, Korea were analyzed to study the application of forensic dental identification into individual identification in the period 2002-2005. The identification cases of unidentified remains were 405 out of 493, which accounted about 82% of whole cases. The incidence of submission of skeletons at least including the skull was increased from 58% in 2002 to 80% in 2005. The numbers of cases for the full examinations were 4 times more than that for age estimation in 2005. Twenty-four cases were submitted for skull to photographic superimposition and 15 out of 24 cases were examined, and the other 9 cases were examined by DNA analysis only. The submitted cases for dental comparison were 23 cases, 9 cases were positively identified, 4 cases were possible, 7 cases were excluded, and 3 cases ended up with insufficient evidences. The proportion of positive identification by dental methods was increased gradually from 9% in 2002 to 46% in 2005. Forensic dental identification has become important and useful because the availability of dental records and radiographs has been increasing. Compared to DNA analysis, forensic dental identification has several advantages such as no needs for high cost equipments and low expenses. And the interpretation of results is straightforward and speedy. These advantages are based on using primary their own dental records of the individuals rather than secondary DNA reference samples from family members. The application of the forensic dental identification to unidentified individual remains will be increased because the dental comparison can complement the limitation of DNA analysis and skull to photographic superimposition in many cases. In order to obtain positive identifications of unidentified remains, a close collaboration between the police and forensic scientists is important. The systemic approach including legislation to preserve dental records of unidentified remains and missing persons for the identification of unidentified remains should be needed.