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클라이언트 - 서버형 멀티미디어 플레이어의 설계 및 구현
박주철(Joo-Chul Park),고일주(Il-Ju Ko),최형일(Hyung-Il Choi) 한국정보과학회 1996 한국정보과학회 학술발표논문집 Vol.23 No.2B
본 논문에서는 하나의 응용 프로그램 내에서 원하는 형태의 자료를 출력하기 위하여 멀티미디어의 저작을 위한 도구와 저작된 박물관 자료들에 대한 원격관람이 가능하도록 통신기능이 포함된 클라이언트-서버형 멀티미디어 플레이어를 설계하고 구현하였다. 본 논문에서 제시하는 시스템은 스크립트 기반 프로그래밍 기법을 이용하여 멀티미디어를 저작 가능토록 함으로써 저작의 융통성을 제공하고, 이로써 발생하게 되는 장면마다의 스크립트 파일들이 통신망을 통하여 전송되고 재생을 원하는 시스템에 탑재되어 있는 재생기를 이용하여 저작된 자료를 재생한다.
양성식도질환(良性食道疾患)에 대(對)한 임상적(臨床的) 고찰(考察)
박주철,노준량,김환종,서경필,이영균,Park, Joo Chul,Rho, Joon Ryang,Kim, Chong Whan,Suh, Kyung Phill,Lee, Yung-Kyoon 대한흉부심장혈관외과학회 1976 Journal of Chest Surgery (J Chest Surg) Vol.9 No.2
A clinical analysis was performed on 118 cases of the benign esophageal diseases experienced at Department of Thoracic Surgery, Seoul National University Hospital during 20 year period from 1957 to 1976. Of 118 cases of the benign esophageal diseases, there were 84 patients of esophagenal stenosis, 14 of esophageal perforation, 8 of esophageal atresia, 7 of achalasia, 2 of hiatal hernia, 2 of esophageal foreign body and one of esophageal diverticulum. Fifty-one patients were male and sixty-seven were female, and ages ranged from one day to sixty-four years with peak incidence in the age group of 20 to 29 years. All but one of the esophageal stenosis were caused by corrosive esophagitis and ages ranged from three to sixty-four years with peak incidence in third decade. Main symptoms of the esophageal stenosis were dysphagia, weight loss and chest pain in order and mostly began between one month and one year after ingestion of corrosive agents. Corrosive esophageal stenosis developed most frequently in middle one-third of the esophagus and about one-forth of them were diffuse. Operations were performed on 72 patients of esophageal stenosis of whom 26 patients had esophagocologastrostomy, 21 gastrostomy, 20 esophagogastrostomy, 4 esophagojejunogastrostomy and 2 pharyngogastrostomy. There were 5 deaths in the postoperative period, an operative mortality of 6.9 percent, and 20 patients had one or two complications; eight were anastomotic leaks, 6 gangrenes of replaced loop, 4 wound abscesses and others. The causes of the esophageal perforation were traumatic in 7 cases, caustics in 4 and spontaneous in 3, and the most frequent site of the perforation was lower one-third of the esophagus. Frequent symptoms of the esophageal perforation were pain, fever, dysphagia and dyspnea, and preoperatively there were mediastinitis in 8 cases, empyema in 7, lung abscess in 3 and others. All 14 patients of the esophageal perforation underwent operation: primary closure in 7 cases, drainage in 4, esophagogastrostomy in 2 and 'esophageal diversion in one. There were 4 postoperative deaths and 11 postoperative complications occurred in 7 patients. The duration of symptoms in achalasia was between 3 months and 25 years, with an average duration of 6. 2 years. Frequent symptoms of the achlasia esophagi were dysphagia, regurgitation, pain and weight loss in order. All 7 patients of achlasia underwent modified Heller's operation where 2 patients had complications, restenosis in one and esophageal perforation in another. All 8 patients of congenital esophageal atresia had distal tracheoesophageal fistula and were admitted within 5 days of life, but there were pneumonic consolidation on chest X-ray in patients. Five patients underwent one staged operation with the result of 2 deaths and one anastomotic leak.
홍장수,박주철,노준량,김종환,서경필,이영균,Hong, Jang Soo,Park, Joo Chul,Rho, Joon Ryang,Kim, Chong Whan,Suh, Kyung Phil,Lee, Yung-Kyoon 대한흉부심장혈관외과학회 1976 Journal of Chest Surgery (J Chest Surg) Vol.9 No.2
Truncus arteriosus is a rare and highly lethal cardiac anomaly characterized by a single arterial trunk emerging from the heart and supplying the coronary, systemic, and pulmonary circulations, The first successful correction of truncus arteriosus was reported by McGoon et al. in 1968 and was based on experimental work reported by Rastelli et al. in 1967 in which a conduit consisting of a homograft of the ascending aorta and aortic valve was used to establish continuity between the right ventricle and the pulmonary arteries, Modification of this procedure using a Dacron tube valved with porcine xenograft instead of a homograft have resulted in the current definite treatment for truncus arteriosus. This report describes an 3 years and 4 months old boy with heart failure from type I truncus arteriosus who was diagnosed as the V. S. D. with pulmonary hypertension preoperatively and underwent corrective surgery employing the Rastelli procedure using a Dacron conduit valved with canine xenograft, but died due to massive bleeding from the anastomosis sites in operating room.
황대동,박주철,김계영,Hwang, Dae-Dong,Park, Joo-Chul,Kim, Gye-Young 한국정보처리학회 2009 정보처리학회논문지B Vol.16 No.6
This paper develops a novel technique of face detection using brightness distribution in the surrounding area of eye. The proposed face detection consists of facial component candidate extraction, facial component candidate filtering through eye-lip combination, left/right eye classification using brightness distribution, face verification confirming edges in nose region. Because the proposed technique don't use any skin color, it can detect multiple faces in color images with complicated backgrounds and different illumination levels. The experimental results reveal that the proposed technique is better than the traditional techniques in terms of detection ratio. 본 논문에서는 눈 주변의 명암분포를 사용하여 영상에 존재하는 얼굴을 탐지하는 새로운 기술을 개발한다. 제안하는 얼굴탐지의 기본적인 절차는 얼굴구성요소 후보 추출, 눈과 입의 형태정보를 이용한 얼굴구성요소 후보 필터링, 눈 후보 주변영역의 에지와 명암분포를 인공신경망 에 적용하여 좌/우안 분류, 눈-입 조합을 통한 얼굴후보 추출, 코 영역 에지의 존재 유무를 이용한 얼굴 검증 순이다. 본 논문에서 제안하는 방식은 눈의 주변영역 정보를 인공신경망에 적용하여 좌/우안 정보를 산출하여 얼굴을 탐지하는 것에 중점을 두고 있다. 이 방법은 피부색상을 이용하지 않으므로 다양한 조명환경과 복잡한 배경을 가지는 영상들에 존재하는 얼굴을 탐지할 수 있다. 탐지율 관점에서 기존의 주요 방법들 보다 우수함을 실험을 통하여 보인다.