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영역 정보를 이용한 비디오 데이터의 카메라 모션 검출 및 대표 프레임 선택 방법
이용현(Yong-Hyun Lee),강행봉(Hang-Bong Kang),박용진(Yong-Jin Park) 한국정보과학회 1998 한국정보과학회 학술발표논문집 Vol.25 No.2Ⅱ
많은 양의 비디오 테이터가 디지털화 되면서 사용자가 쉽게 자신이 원하는 비디오 데이터를 검색할 수 있는 내용 기반 검색이 필요하게 되었다. 내용 기반 검색을 위해서는 비디오 데이터를 연속된 카메라 모션의 구성된 셧으로 나누고, 셧의 내용을 대표 할 수 있는 대표 프레임을 찾아야 한다. 대표 프레임은 비디오 데이터의 요약과 색인의 중요한 수단이다. 본 논문에서는 셧의 내용 기반으로 대표 프레임을 찾기 위해서 프레임에 존재하는 영역 정보를 바탕으로 셧의 내용을 알 수 있는 핵심 정보인 카메라 모션을 검출 하고, 이를 기반으로 대표 프레임을 선택하는 방법을 제안한다.
이용석 ( Yong Seok Lee ),이영준 ( Young Joon Lee ),한창현 ( Chang Hyun Han ) 한방재활의학과학회 2013 한방재활의학과학회지 Vol.23 No.3
ObjectivesWe will provide basic information on bee venom clinical tests and aid the practical use of bee venom in such tests, through examination of RCT research related to bee venom that was reported domestically. MethodsWe collected 365 articles on Bee venom study result from the OASIS system using the Keyword ‘bee venom, apitoxin, apitherapy, bee sting’. The initially selected theses were primarily screened for clinical research. Out of these, case studies and non randomized controlled trial (non-RCT) were ruled out. As a result, 39 studies of randomized controlled trial (RCT) research were chosen as the subjects of study. ResultsRCT research related to bee venom was first presented in 2003, and 39 studies have been published until 2012. 18 studies were tests to confirm the effectiveness of bee venom, 7 studies were comparisons between SBV and BV, and 13 studies were comparisons with other types of treatment. Research conducted through appropriate randomization methods were 20 studies, and inappropriate randomization methods were used in 19 studies. In therms of Jadad score, 12 studies received 4~5 points, 15 studies received 1~3 points, and 12 studies received zero point. ConclusionsIn order to assure good quality RCT research, appropriate guidelines should be provided, and proper evaluation standards should be established. In-depth study is needed concerning the difference of responses to treatment according to the types of treatment received. A standardization of treatment should be reached as a result. (J Korean Med Rehab 2013;23(3):87-106)
Yong Seuk Lee(이용석),Young Bok Jung(정영복),Ho Joong Jung(정호중),Se Jin Park(박세진),Chang Hyun Nam(남창현) 대한정형외과학회 2007 대한정형외과학회지 Vol.42 No.6
변형된 inlay 방법을 이용한 후방십자인대 재건 및 후외측 재건을 실시한 환자 중 후외측 관절막에 수술적 제거가 필요했던 이소성 골화가 생긴 1예를 보고하고자 한다. 환자는 근위 경골부 직접 타박상을 6개월 전에 받았으며 내원 당시에 허혈성 소견은 없었고, 다른 부위의 외상도 없었다. 수술적 치료를 시행하였으며 술 후 4개월에 0-30도의 관절 운동 범위를 나타내었다. 방사선 사진에서는 특이 소견이 없었고, 관절경적 유착 박리술을 시행하였으며 0-120도의 관절 운동범위를 얻을 수 있었다. 술 후 6개월에 후방 관절막에 이소성 골화 소견이 있었으며 술 후 12개월에 성숙된 이소성 골을 제거 하였다. 그후 재발은 없었으며 술 후 42개월째에 0-140도의 관절운동범위를 보였다. We describe a case of posterolateral capsular heterotopic ossification requiring a surgical excision after a PCL (Posterior Cruciate Ligament) reconstruction using the modified inlay method and PLCS (posterolateral corner sling) with a tibia tunnel. A 21-year-old female patient had suffered a blunt proximal tibial direct trauma 6 months earlier. She did not experience limb ischemia or a pulse deficit before she visited our out patient clinic. She had not suffered any trauma in other sites, and showed a range of motion of 0 to 30° at 4 months after surgery. There was no specific finding on the X-ray images. Arthroscopic adhesiolysis was performed and her range of motion increased to 0 to 120°. However, 6 months after the initial operation, she showed ankylosis and heterotopic ossification at the posterior aspect, which was surgically removed at 12 months postoperatively. After the second surgery, there was no recurrence and she showed a 0 to 140° range of motion at postoperative 42 months.
연속된 와이어를 이용한 다층 PCM 의 제조방법 및 특성 평가
이용현(Yong-Hyun Lee),최지은(Ji-Eun Choi),강기주(Ki-Ju Kang) 대한기계학회 2006 대한기계학회 춘추학술대회 Vol.2006 No.6
Truss PCMs(Periodic Cellular Metals) have been studied since the new millennium because of their superior specific stiffness, strength and potential of multi functions. Prior studies have focused on manufacturing method and structural optimization. Especially, special attention has been focused on Kagome truss PCM because Kagome truss PCM has higher resistance to plastic buckling, more plastic deformation energy and lower anisotropy than other truss PCMs. In this study, we introduce a new idea to fabricate multilayered Kagome truss PCM from continuous wires which can gain high strength as in piano wires and can be controlled to be defect free owing to drawing process. The relative density and the bending & compression stiffness and strength is estimated through elementary mechanics and compared with experiments and FEA. The failure mechanisms are analyzed, and also mechanical performance and production are discussed.
한창현 ( Chang Hyun Han ),이용석 ( Yong Seok Lee ),권오민 ( Oh Min Kwon ),이영준 ( Young Joon Lee ) 경락경혈학회 2013 Korean Journal of Acupuncture Vol.30 No.1
Objectives: The focus of the analysis was laid on changes in research pertaining to bee venom in regards to time progression. Methods: We collected 365 articles on Bee venom study result from OASIS system using the Keyword ``bee venom, apitoxin, apitherapy, bee sting``. We figured out number and percentage of theses according to year, study method, journal, subject. Results: Bee venom papers published in the journal of korean medicine from 1976. The classification of papers associated with bee venom, clinical studies outnumbered the other study types by a ratio of 1.3 to 1, followed by 138 for experimental papers, and 22 for literature studies. Proportion of Experimental Papers Classified According to the Theme, 16 for pain-killing, 14 papers concentrated on apoptosis, anticancer, 13 for anti inflammatory, 11 for arthritis, and other disorders were followed. Type analysis of papers associated with bee venom in clinical trials, lumbar disorders comprised 38 out of 205 papers, 35 papers concentrated on upper limb disorders, 34 papers concentrated on systemic disease, followed by the effect on body. Conclusions: Bee venom is a treatment method based on the unique theory of Korean traditional medicine. Its effort and academical approach on bee venom are expected to receive positive evaluation through numerous research works.