• 대한핵의학회지
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• 제20권1호
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• pp.67-73
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• 1986

Subclinical hypothyroidism can be defined as an asymptomatic state in which a reduction in thyroid activity has been compensated by an increased TSH output to maintain a euthyroid state. We analysed clinical features, laboratory data, and pathologic findings in 3g cases of subclinical hypothyroidism who were diagnosed at the Dept. of Internal Medicine, Chungnam National University Hospital from Aug. 1984 to June, 1985. 1) The age distribution was from sixteen to sixty-nine and mean a9e was 34.8. Peak incidence was in the 4th decade and 3rd, 5th, 6th decade in order. 2) The sex distribution showed female preponderance with a ratio of 18.5 to 1. 3) The major presenting manifestations were nonspecific ones such as fatigue, indigestion, and anorexia. 4) Physical examination revealed diffuse goiter in 47.6%. Major abnormalities were no gross abnormality (30.9%), nodular goiter and facial edema. 5) There was no significant difference of the basal serum $T_3\;and\;T_4$ concentrations between subclinical hypothyroidism and normal controls (p>0.05). 6) The basal serum TSH concentration of subclinical hypothyroidism $(32.61{\pm}14.95{\mu}U/ml)$ was significantly higher than that of normal controls $(3.92{\pm}1.05{\mu}U/ml)$ (p<0.005). 7) Microsomal antibody was detected in 80.6% and thyroglobulin antibody was detected in 30%. 8) The pathologic findings in 26 cases revealed Hashimoto's thyroiditis in 76.9% (lymphocytic type, 34.6%; oxyphilic type, 26.9%; fibrotic type, 15.4%). The others were adenomatous goiter(15.4%), adenomatous carcinoma (3.8%) and subacute thyroiditis(3.8%).

• 대한유전성대사질환학회지
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• 제14권2호
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• pp.156-162
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• 2014

A 25-month-old boy was referred to the hospital due to large head detected on routine physical examination. At visit, dysmorphic facial appearances, including broad nose, prominent forehead, and coarse face, were noted. Nasal obstruction with nasal voice, prominent adenoids, and bilateral middle ear effusions were detected. His abdomen was distended, and liver and spleen were palpated about 3 finger and 2 finger breadths, respectively. He was operated for bilateral inguinal hernias. The motion of both elbow joints was mildly limited on supination and pronation. Urinary level of glycosaminoglycan was elevated and the enzyme activity of iduronate sulfatase in leukocytes was decreased. The mutational analysis of the gene iduronate 2-sulfatase (IDS) revealed c.263G>A (p.Arg88His) mutation. His developmental scale showed delayed development and there was cardiac valvular involvement (tricuspid regurgitation and mitral valve prolapse). After the diagnosis of Hunter syndrome, enzyme replacement therapy started on a weekly basis without progression of any clinical features. Here we report a case of early diagnosed Hunter syndrome detected by large head on routine examination. Thus, it is important to associate Hunter syndrome in the patient with large head especially, if there is the history of bilateral inguinal hernia and prominent adenoids to increase the possibility of early diagnosis and treatment.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제10권5호
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• pp.2363-2374
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• 2016

Communication occurs through verbal elements, which usually involve language, as well as non-verbal elements such as facial expressions, eye contact, and gestures. In particular, among these non-verbal elements, gestures are symbolic representations of physical, vocal, and emotional behaviors. This means that gestures can be signals toward a target or expressions of internal psychological processes, rather than simply movements of the body or hands. Moreover, gestures with such properties have been the focus of much research for a new interface in the NUI/NUX field. In this paper, we propose a method for recognizing the number of fingers and detecting the hand region based on the depth information and geometric features of the hand for application to an NUI/NUX. The hand region is detected by using depth information provided by the Kinect system, and the number of fingers is identified by comparing the distance between the contour and the center of the hand region. The contour is detected using the Suzuki85 algorithm, and the number of fingers is calculated by detecting the finger tips in a location at the maximum distance to compare the distances between three consecutive dots in the contour and the center point of the hand. The average recognition rate for the number of fingers is 98.6%, and the execution time is 0.065 ms for the algorithm used in the proposed method. Although this method is fast and its complexity is low, it shows a higher recognition rate and faster recognition speed than other methods. As an application example of the proposed method, this paper explains a Secret Door that recognizes a password by recognizing the number of fingers held up by a user.

• 한국통신학회논문지
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• 제37권7C호
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• pp.565-575
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• 2012

현대인의 생활에 가장 큰 비중을 차지하는 자동차에도 스마트 기능의 탑재가 요구되는 실정에서 여러 가지 스마트 기기 및 스마트 방법에 대한 개발이 이루어지고 있다. 본 논문에서는 이러한 스마트 자동차 중에서도 안전관리 시스템의 주요 핵심 사항인 음주 및 졸음 제어를 위한 시스템 개발의 일환으로, 음주를 하게 될 경우 자동차의 시동이 자동으로 걸리지 않도록 하는 시스템을 개발하고자 한다. 이를 위해 영상처리를 통해 운전석의 운전자의 안면 색을 분석하여 음주 여부를 확인하는 방법을 제안하고자 한다. 특히 본 논문에서 개발한 음주 여부 판단 시스템은 음주를 하기 전의 얼굴 영상을 필요로 하지 않고 오로지 음주 후에만 독특하게 나타나는 얼굴의 색상 변화만을 대상으로 음주 여부를 판단 할 수 있는 방법인고로 실제 음주제어를 중심으로 한 스마트 자동차 안전 제어 시스템에 효과적으로 적용가능하리라 여겨진다. 실험은 30명을 대상으로 행해졌으며 이들을 대상으로 음주 후에 나타나는 얼굴색의 변화를 분석하였다. 끝으로 실험을 통해 도출된 결과의 통계적 유의성을 분석하고 제안한 방법의 유용성을 입증하고자 한다.

• 복식
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• 제56권9호
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• pp.83-97
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• 2006

This Study is a thesis presenting handicrafty and decorative textile design as well as sensual fashion design through the works of Gustav Klimt. The result is as below; The formative qualities in the works of Klimt could be featured as decorativeness, sensuality and symbolism. First, the decorative inclination is prominent in the portrait and the effect is maximized with the golden mosaic shape expressed on the dress and the background influenced by the Byzantine. Second, the sensuality could be recognized directly from the women's pose or facial expression in the works of Klimt, otherwise appeared on the refined expression showed on the portraits of noble lady Third, to surpass the reality, Klimt preferred the symbolic expression, which can be shown on the patterns in the works addressing the themes such as the legends and myths, or figures of men and women expressed with the image of an abstract features of membrum. The development of the textile design is as fellowed. First, it analyzes and reconstitutes the formativeness and the element of design in the works of Klimt by the flow of the form factor. Second. it makes a pattern of a single nature through perception, analysis, description and drawing and expresses with realization of the characteristics of Klimt. Focusing on the handicrafts and decorativeness out of the latest trends and making the most use of the sensuality, the designed textiles were completed by the handicrafty techniques, used in the fashion design and completed as the design of sensual images. The textile development aims at minimizing the limit of design that can be caused by the absence of silhouette and detail, expanding the range of its creativity of fashion designs and creating fashion design high value-added.

• 전자공학회논문지CI
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• 제43권2호
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• pp.63-71
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• 2006

칼라 영상의 잡음 제거 및 복원은 컴퓨터 비젼 및 영상 처리 분야에서 점점 더 많은 연구가 되어지고 있는 분야이다. 칼라얼굴 영상에서의 잡음 제거 및 복원은 색상들 간의 미묘한 상호작용뿐만 아니라 얼굴의 구조학적 특징 때문에 일반적인 영상의 처리보다 더욱 어렵다. 본 논문은 벡터기반의 영상 필터들을 이용하여 제거하기 어려운 칼라 얼굴 영상의 복합 잡음을 제거 하기 위해 PCA 재구성 기반의 잡음 제거 방법을 제안한다. 제안된 방법은 PCA를 이용한 정준 고유얼굴 공간의 학습단계, 동적 외양 모델을 이용한 자동적인 얼굴 특징 추출 단계, Bilateral 필터를 이용한 복원된 칼라 영상의 재조명(Relighting) 단계, 학습 데이터들의 분산 값들을 이용한 잡음 영역 추출 단계, 입력 영상의 부분 정보를 이용한 재구성과 이를 원본 영상과 합성하여 잡음이 제거된 영상을 생성하는 단계 등 총 5 단계로 구성된다. 실험결과는 제안된 방법이 입력 얼굴 영상들의 구조적 특징들은 잘 유지하면서 복합적인 칼라 잡음 등을 효과적으로 제거하는 것을 보인다.

• 전자공학회논문지CI
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• 제49권2호
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• pp.61-74
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• 2012

본 논문에서는 MCS-LBP 이진패턴 영상과 2D-PCA 알고리즘을 이용한 조명 변화에 강인한 얼굴인식 시스템에 대하여 제안한다. 이진패턴 변환은 기존의 얼굴인식 및 표정인식 분야에 사용되는 기법으로, 일반적으로 조명 변화에 강인한 특성을 갖는다. 이에 본 논문에서는 기존의 LBP보다 조명 변화에 더 강인한 MCS-LBP를 제안하고, 더불어 2D-PCA 알고리즘과 결합하는 얼굴인식 시스템을 제안한다. 제안하는 얼굴인식 방법의 성능평가는 기존의 다양한 이진패턴 변환 영상과 얼굴인식에 널리 사용되고 있는 PCA, LDA, 2D-PCA 및 가버영상의 ULBP 히스토그램 특징을 사용하여 수행하였다. 다양한 조명변화 환경에서 구축된 YaleB, extended YaleB, CMU-PIE 등의 공인 얼굴 데이터베이스를 이용하여 실험한 결과, 제안하는 MCS-LBP영상과 2D-PCA 특징을 사용한 방법이 가장 우수한 인식 성능을 보였다.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• 제41권1호
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• pp.52-56
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• 2015

Clinical features of masticator-space abscess (MSA) are very similar to those of parotitis or temporomandibular disorder (TMD), making early differential diagnosis difficult. Local causes of MSA include nerve block anesthesia, infection after tooth extraction, and trauma to the temporomandibular joint (TMJ); the systemic cause is immunodeficiency. Odontogenic causes account for most etiologies, but there are also unusual causes of MSA. A 66-year-old male patient visited the emergency room (ER) presenting with left-side TMJ pain three days after receiving an acupressure massage. He was tentatively diagnosed with conventional post-trauma TMD and discharged with medication. However, the patient returned to the ER with increased pain. At this time, his TMD diagnosis was confirmed. He made a third visit to the ER during which facial computed tomographic (CT) images were taken. CT readings identified an abscess or hematoma in the left masticator space. After hospitalizing the patient, needle aspiration confirmed pus in the infratemporal and temporal fossa. Antibiotics were administered, and the abscess was drained through an incision made by the attending physician. The patient's symptoms decreased, and he was discharged.

• Maxillofacial Plastic and Reconstructive Surgery
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• 제31권1호
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• pp.61-66
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• 2009

The brown tumors develop in bone and it develop on various area which in clavicle, rib bone, cervical bone, iliac bone etc. The development on the maxillofacial region is rare, relatively more develop on the mandible. The brown tumor directly develop by the dysfunction of calcium metabolism according to hyperparathyroidism and differential diagnosis with other bone lesion should be difficult if it would diagnose by only radiographic features. The histological feature is that proliferation of spindle cells with extravasated blood and haphazardly arranged, variably sized, multinucleated giant cell is seen. The brown tumor is firm diagnosed by physical examination, because of these histological feature show similar with other giant cell lesions(giant cell granuloma, aneurysmal bone cyst, cherubism). The brown tumors have been described as resulting from an imbalance of osteoclastic and osteoblastic activity. It result in bone resorption and fibrous replacement of the bone. So these lesions represent the terminal stage of hyperparathyroidism-dependent bone pathology. Therefore, it is the extremely rare finding that brown tumor in the facial bone as the first manifestation of an hyperparathyroidism. We experience 1 case of brown tumor(50 years old female) that developed on Maxilla and mandible with no history of hyperparathyroidism. So we report this case with a literature review.

• Archives of Plastic Surgery
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• 제36권5호
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• pp.663-666
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• 2009

Purpose: Primary malignant lymphomas of the salivary glands are uncommon. The parotid gland was most frequently involved, followed by the submandibular gland, minor salivary gland and sublingual gland. The most common subtype is mucosa - associated lymphoid tissue(MALT) lymphoma. We experienced a case of salivary MALT lymphoma involving parotid gland duct, so report a case with a review of the literature. Methods: A 65 year old female presented with a palpable mass on the left side of her cheek. There was no clinical or laboratory evidence of pre - existing autoimmune disease. Preoperative facial and neck CT with contrast showed $2.1{\times}1.7cm$ sized, ill defined, homogeneous low density mass near left masseter muscle, and no evidence of other enlarged lymph nodes. Results: At operation, a yellowish oval shaped mass was found slightly adhered to middle portion of the parotid gland duct, meaduring $2{\times}1.5{\times}0.7cm$. Microscopic finding showed that centrocyte - like cells, monocyte B cells and plasma cells were diffusely infiltrated. Immunophenotyping was preformed on fixed section. The majority of the small cells were immunoreactive for the B cell marker CD20. Based on the typical histological findings supported by immunostaining, the mass was defined as MALT lymphoma. Conclusion: We report that very rare case of MALT lymphoma involving parotid gland duct in 65 year old female patient was experienced with clinical characteristics, histologic features and references.