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무인기 지원 RGB 영상과 다중선형회귀분석을 이용한 하천 수심 추정
문현태,이정환,육지문,문영일,Moon, Hyeon-Tae,Lee, Jung-Hwan,Yuk, Ji-Moon,Moon, Young-Il 한국수자원학회 2020 한국수자원학회논문집 Vol.53 No.12
River cross-section measurement data is one of the most important input data in research related to hydraulic and hydrological modeling, such as flow calculation and flood forecasting warning methods for river management. However, the acquisition of accurate and continuous cross-section data of rivers leading to irregular geometric structure has significant limitations in terms of time and cost. In this regard, a primary objective of this study is to develop a methodology that is able to measure the spatial distribution of continuous river characteristics by minimizing the input of time, cost, and manpower. Therefore, in this study, we tried to examine the possibility and accuracy of continuous cross-section estimation by estimating the water depth for each cross-section through multiple linear regression analysis using RGB-based aerial images and actual data. As a result of comparing with the actual data, it was confirmed that the depth can be accurately estimated within about 2 m of water depth, which can capture spatially heterogeneous relationships, and this is expected to contribute to accurate and continuous river cross-section acquisition.
김진구,문현태,송재국,박성식 인제대학교 백병원 2002 仁濟醫學 Vol.23 No.2
Objective : To evaluate the incidence of the Posterolateral rotatory instability(PLRI) combined with anterior cruciate ligament(ACL) injury and the efficacy of Posterolateral corner(PLC) reconstruction with sling procedure. Methods and Materials : We evaluated 13 patients who had been operated PLRI combined with ACL injury between February 1998 and september 2001. We evaluated functional test, preoperative and postoperative Lysholm knee score, physical examination. Results : PLC reconstructions were 44cases, ACL reconstructions were 143cases. Combined reconstruction of the ACL and PLC were 13 cases, 9.1% of total ACL reconstruction, 29.5% of total PLC reconstruction. Improvement of average Lysholm knee score in Group Ⅰ was from 51.6 to 89.5. group Ⅱ was from 78.5 to 92.2. Conclusion : In ACL injury knee, PLRI diagnosis needs high suspicion and sound physical examination and athroscopic examination. If combined PLRI, PLC reconstruction needs and sling procedure is efficient.