화상 회의 인터페이스를 위한 눈 위치 검출

이재준,최정일,이필규,Lee, Jae-Jun,Choi, Jung-Il,Lee, Phill-Kyu 한국정보처리학회 1997 정보처리학회논문지 Vol.4 No.12

기존의 화상 회의 시스템에서는 카메라가 고정되어 있어서 사용자의 움직임에 제약을 주어 사용자를 부자연스럽게 한다. 이러한 부자연스러움을 해갈하기 위해서는 얼굴의 움직임을 추적해야 하는데, 이때 얼굴 전체를 정보로 추적하는 것은 얼굴 전체를 하나의 특징으로 규정짓기도 힘들고 연산 시간이 많이 걸린다는 문제점을 가지고 있다. 따라서, 얼굴의 움직임을 효율적으로 추적하기 위해서는 얼굴상의 몇 개의 특징점을 이용하는 것 이 바람직하다. 본 논문은 화상 회의에서 자연스러운 사용자 인터페이스를 위한 자동 얼굴 추적 시스템의 필수적인 요소인 눈 위치 검출의 효과적인 방법에 대하여 논한다. 눈은 얼굴 내에서 가장 뚜렷하며 단순한 특징을 가지고 있으므로 얼굴을 추적하기 위한 가장 중요한 정보가 된다. 본 논문에서 제안한 알고리즘은 얼굴 후보 영역 추출 단계를 거친 얼굴 후보 영역들에 대해 적용되며, 기존 방법들에 비해 조명에 특별한 제약을 받지 않으며 얼굴 크기와 안경에 대한 제약도 가지고 있지 않다. 또한, 화상 회의 환경에 대한 on-line 실험에서 좋은 결과를 나타냈다. This paper addresses an eye location algorithm which is essential process of human face tracking system for natural video-conferencing. In current video-conferencing systems, user's facial movements are restricted by fixed camera, therefore it is inconvenient to users. We Propose an eye location algorithm for automatic face tracking. Because, locations of other facial features guessed from locations of eye and scale of face in the image can be calculated using inter-ocular distance. Most previous feature extraction methods for face recognition system are approached under assumption that approximative face region or location of each facial feature is known. The proposed algorithm in this paper uses no prior information on the given image. It is not sensitive to backgrounds and lighting conditions. The proposed algorithm uses the valley representation as major information to locate eyes. The experiments have been performed for 213 frames of 17 people and show very encouraging results.

테마형 도시개발과 대규모 주거단지 조성을 위한 해외사례 및 지침수립 연구

이재준,이범현,최석환,김도영,박상철,신영준,이외희 경기연구원 2008 위탁연구 Vol.2008 No.1

It is international trend that development of large-scale residential area tries to plan agreeable and convenient life and accomplish special urban development because giving various urban theme. The success of a sustainable development depends on how much it considers the urban development theme when it is implemented. Because establishing various urban development theme, it is trying to secure competitive urban growth and accomplish sustainable development ultimately. Therefore, it is main purpose of this research that wish to receive applicable suggestion point in our country analyzing urban development case study of advanced nations. The case of this research is advanced nation's large scale residential projects that is establishing special theme and accomplish urban development continuously. The study identifies six types of urban development case that was dealt with in previous studies. The study has selected projects based on which the types of urban development scale. The case included six projects : Milton Keynes(U.K), Marne La Vallee(France), Kista Science City(Sweden), Kohoku(Japan), Rieselfeld(Germany), Mission Bay(San Francisco, USA). They all included special theme and success of sustainable development. Because the case of this research constructs cooperation system with inhabitants according to change that is development period of long term, it is standpoint that long term and inhabitants-related development can consist sustainable development. Specially, case that is applying "Urban Regeneration" techniques for urban center district's reconstruction according to change in spite of new built-up area furtherance way assume that suggestion point is in our country that the latest "Urban Regeneration" is becoming topic. Also, case projects by been consistent development subject from plan to monitoring is done and point that is cultivated is diagnostic. In contrast to, our country is thought that systematic repletion need in reply doing not take that development subject. The limitations of the study are first of all, that the study has failed to closely examine the planning process due to the insufficient data. In addition, it has been difficult to identify the change in the planning made. Lastly, this research suggested that large scale residential projects without staying in point analysis of development only, it is presenting "Guideline" that coincide in regional special quality of Gyeonggi Province. Because "Guideline" is utilized systematically in Gyeonggi Province, it wished to become manure given in developing desirable urban area.

Acute, fatal postoperative myocardial infarction after laparoscopic cholecystectomy in a cardiac patient -A case report-

이재준,황성미,김형수,류병윤,김진,장지수,임소영 대한마취통증의학회 2010 Korean Journal of Anesthesiology Vol.59 No.-

This report presents the case of a 63-year-old man who had a myocardial infarction leading to coronary artery bypass graft 2 years earlier who subsequently underwent elective laparoscopic cholecystectomy. After an uneventful operation, the patient developed an acute postoperative myocardial infarction in the recovery room and died 19 days postoperatively. Anesthesiologists should be aware of the rare possibility of acute, fatal postoperative myocardial infarction and consider this complication when they perform the preoperative risk evaluation, anesthesia, and postoperative care for cardiac patients undergoing noncardiac surgery.

Recurrent spinal myoclonus after two episodes of spinal anesthesia at a 1-year interval -A case report-

이재준,황성미,이준성,장지수,임소영,홍성준 대한마취통증의학회 2010 Korean Journal of Anesthesiology Vol.59 No.-

Spinal myoclonus is an unusual, self-limiting, adverse event that may occur during spinal anesthesia. The exact cause and underlying biochemical mechanism of spinal myoclonus remain unclear. A few cases of spinal myoclonus have been reported after administration of intrathecal bupivacaine. We report a case in which spinal myoclonus recurred after two episodes of spinal anesthesia with bupivacaine at a 1-year interval in a 35-year-old woman. The myoclonus was acute and transient. The patient recovered completely, with no neurologic sequelae.

Remifentanil-Propofol Sedation as an Ambulatory Anesthesia for Carpal Tunnel Release

이재준,황성미,Ji Su Jang,임소영,허동화,조용준 대한신경외과학회 2010 Journal of Korean neurosurgical society Vol.48 No.11

Objective : This prospective study evaluated the use of continuous sedation using propofol and remifentanil when carpal tunnel release (CTR)was performed under local anesthesia. Methods : We sedated 60 patients undergoing CTR using local anesthesia with remifentanil at loading and continuous doses of 0.5 μg/kg-1 and 0.05 μg/kg-1/min-1, respectively, and propofol, using a target controlled infusion (TCI) pump set to a target of 2 μg/mL-1 (group A), or with the same drug doses except that the continuous remifentanil dose was 0.07 μg/kg-1/min-1 (group B) or 0.1 μg/kg-1/min-1 (group C). Results : In group B, the levels of pain when local anesthetics were administered (p = 0.001), intraoperative pain (p < 0.001) and anxiety (p =0.001) were significantly lower than those of group A. Furthermore, the incidence of adverse events, including desaturation (P?<?0.001) and vomiting (p = 0.043), was significantly lower in group B than in group C. Conclusion : Continuous sedation using an appropriate dose of remifentanil and propofol can be used as safe, efficacious ambulatory anesthesia in cases of CTR under local anesthesia, performed using only 2 mL of local anesthetic, with a high degree of patient satisfaction.

수박무 가식부 분말 첨가 양갱의 품질 특성 및 항산화 효과

이재준,정은,박연진 한국식품영양학회 2021 韓國食品營養學會誌 Vol.34 No.6

This study investigated the quality characteristics and antioxidant activity of Yanggaeng prepared with various amounts of watermelon radish flesh (WRF) powder, in ratios of 0 (control), 2.5, 5, 7.5, and 10% of the cooked white bean paste. The proximate composition, pH, sugar content, Hunter’s color values, texture analysis, and antioxidative activities of Yanggaeng were examined. Increasing the amount of WRF in the Yanggaeng tended to increase the crude ash, carbohydrate, sugar, total polyphenol, total flavonoids, and anthocyanin contents, a value, DPPH and ABTS radical scavenging activities, with decreasing the moisture and crude protein contents, L and b values, and pH. Texture measurement scores in terms of springiness, chewiness for Yanggaeng showed that 2.5% or 5.0% group was higher than those of the control group. Hardness was higher in the sample groups than in the control group. In conclusion, the results show that Yanggaeng with up to 7.0% added WRF powder can be developed as products, and there is a possibility of developing health functional snack products using WRF powder.

일본(日本) 소재(所在) 16세기(世紀)의 조선(朝鮮) 내사본(內賜本) 연구(硏究)

이재준,송일기,Lee, Jae-Jun,Song, Il-Gie 한국도서관정보학회 2013 한국도서관정보학회지 Vol.44 No.4

The Joseon Dynasty suffered a great loss from the Japan invasion of Korea in 1592. At that time so many precious books were plundered by Japanese Army. And that plundered books, now in Japan, include a lot of complete titles of the books were given by the Kings - the Naesabon (內賜本) - of the early Joseon Dynasty period. If we could find out the quantities and the contents of them, it could be helpful for studying the same books remained incompletely now in Korea. In this respect, understanding current situation of the Naesabon(內賜本) is an important subject of the Korean bibliographic and historical studies. The purpose of this study is finding out the current situation of the Naesabon(內賜本) now in Japan, especially published in 16th century. 우리 역사상 조선은 임진왜란을 일으킨 왜군으로부터 막대한 피해를 입었다. 전국토가 유린되고 살인, 방화, 약탈은 물론 수많은 양민과 기술자의 나포, 문화재 반출 등 이루 다 말할 수 없을 정도이다. 그 가운데 서적의 약탈 및 반출은 매우 큰 비중을 차지하고 있다. 약탈된 서적 중에는 내사본을 포함하여 국내에서 찾아보기 힘든 조선전기 완질본이 다량으로 전존되고 있다. 일본 지역 내사본의 실제적 내용이 확인된다면 국내에 잔본 등으로 소장되어 있는 동본(同本)에 대한 간행시기와 배포규모 등의 관련 제반사항을 훨씬 더 자세하게 밝혀낼 수 있을 것이다. 따라서 일본 전존 내사본의 현황을 파악하는 것은 서지학적, 역사학적 측면에서 하나의 중요한 과제로 판단된다. 이 연구는 현재 일본 지역에 전존되고 있는 우리나라 내사본 가운데 우선적으로 16세기에 내사된 서적을 대상으로 소장처, 판종, 시기, 주제 등의 종합적인 특징을 분석하였다.

(주)케이씨이엔지니어링

이재준 대한토목학회 2022 대한토목학회지 Vol.70 No.3

대표확률분포형에 의거한 권역별 확률강우강도식의 유도

이재준,이정식,김병일,박종영,Lee, Jae-Jun,Lee, Jeong-Sik,Kim, Byeong-Il,Park, Jong-Yeong 한국수자원학회 2000 한국수자원학회논문집 Vol.33 No.1

Outer Shock Interaction with Progenitor Winds in Young Core-Collapse SNRs

이재준 한국천문학회 2012 天文學會報 Vol.37 No.1