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백인혜,우상효,김기범,Baek, Inhye,Woo, Sang Hyo,Kim, Ki Bum 한국군사과학기술학회 2021 한국군사과학기술학회지 Vol.24 No.2
The Network-Centric warfare over weapon data link networks has been developed for the recent decade. Since the US navy had begun to develop tactical digital information chain, it has gradually transformed into weapon data link technology. As data link network system and its protocol have been advanced into high-technology, focusing and targeting on moving targets become possible in net-enabled environments. However, it is difficult to identify the primary information from numerous battlefields and understanding approaches to damage a target in a timely manner. In this paper, to better understand the targeting assessment, we suggest a specific solution: Bomb Hit Indication(BHI) using information in weapon data link messages. In order to prove our suggestion, we implement the BHI solution and apply it into the weapon data link integrating system.
박준무(Jun-Mu Park),이승효(Seung-Hyo Lee),우상균(Sang-Kyun Woo),추인엽(In-Yeop Chu),이명훈(Myeong-Hoon Lee) 한국표면공학회 2018 한국표면공학회지 Vol.51 No.5
Harsh seawater environment is subdivided into marine atmosphere, splash zone, tidal zone, submerged zone and bottom of sea depending on the exposed part. Since corrosion rate depends on the conditions of the exposed parts, proper protection and maintenance for each parts are essential for long-term use of steel structures in seawater environment. For steel structures which were installed in Shiwha Lake, a special maintenance system is required to guarantee its long-term durability and safety. As the tidal power plant has recently been operated, the salinity has risen due to the rapid influx of seawater upstream into Sihwa Lake and the corrosion tendency of the structure is variable according to the water level fluctuation. In this study, corrosion properties of steel structures under water level fluctuation was evaluated by corrosion rate measurement, visual inspection and natural potential measurement and their durability and life management were discussed in view of the effect of variation in of seawater level fluctuations in Shihwa Lake.
김창욱(Chang Wook Kim),우상효(Sang Hyo Woo),지아모이우딘(Zia Mohy Ud Din),원철호(Chul Ho Won),홍재표(Jae Pyo Hong),조진호(Jin Ho Cho) 한국산업정보학회 2008 한국산업정보학회논문지 Vol.13 No.1
최근 POC (Point of care)와 같은 의료서비스의 질을 높이기 위한 연구가 많이 진행되고 있다. 서비스의 질을 높이기 위해서는 장비뿐만 아니라 간호사 인력의 확충이 매우 중요하다. 그러나 현재 대한민국의 간호사 인력은 매우 부족하며, OECD 국가 중 최하위를 기록하고 있다. 많은 간호사의 업무 중 단순 반복적인 업무를 대체할 경우, 추가적인 인건비 없이도 고급의 간호 인력을 다른 업무에 사용할 수 있다. 수많은 단순 반복적인 간호사 업무 중에는, 본 논문에서는 링거액을 교체하는 업무에 초점을 맞추었다. 그러므로 본 논문에서는 링거의 자동 교체를 위하여, 먼저 링거의 잔량을 검출하는 알고리즘을 구현하였다. 구현된 알고리즘은 실제 현장에 사용할 때 많이 발생할 수 있는 조명 문제의 해결을 위하여 수정된 SQI 알고리즘을 사용하였으며, 이후 간단한 히스토그램 누적 방법을 이용하여 링거의 잔량을 검색하였다. 구현된 알고리즘은 링거 교체에 사용될 수도 있으며, 간호사들에게 경보를 주는 곳에도 사용할 수 있다. Recently, there are many researches to improve the quality of the medical service such as Point of care (POC). To improve the quality of the medical service, not only good medical device but also more man power is required. Especially, the number of nurses are very few in Korea, that is almost the lowest rank compared to OECD countries. If the simple repetition works of the nurse could be removed, it is possible to use the skillful nurse for other works and provide better quality services. There are many simple repetition works which the nurses have to do, such as replacing the ringer’s solution. To replace the ringer’s solution automatically, it is necessary to detect residual quantity of the ringer’s solution. In this paper, image processing is used to detect the residual quantity of ringer’s solution, and modified self quotient image (SQI) algorithm is used to strong background lights. After modified SQI algorithm the simple histogram accumulation is done to find the residual quantity of the ringer"s solution. The implemented algorithm could be use to replace the ringer"s solution automatically or alarm to the nurses to replace the solution.
영역평균 기반의 지오데식 동적 윤곽선 모델에 의한 뇌실 분할
원철호(Chulho Won),김동훈(Dong-Hun Kim),이정현(Jung-Hyun Lee),우상효(Sang-Hyo Woo),조진호(Jin-Ho Cho) 한국멀티미디어학회 2006 멀티미디어학회논문지 Vol.9 No.9
본 논문에서는 지오데식 동적 윤곽선 모델을 이용하여 뇌실 영역을 검출하기 위하여 기존의 에지지시함수를 대신한 영역 기반의 곡선진행억제 함수를 제안하였다. 제안한 곡선 진행 억제 함수는 뇌실 영역의 검출에 매우 효과적이었으며, 이 함수는 MRI 영상에서 밝게 나타나는 뇌실 영역의 평균 밝기를 기반으로 한다. 본 논문에서는 제안한 방법이 기존의 방법보다 뇌실 영역을 잘 검출할 수 있음을 다양한 척도를 이용하여 수치적으로 비교하였다. 실제 정상과 뇌종양에 의한 뇌질환 영상에 적용시켜 뇌실 검출 과정을 시각적으로 비교하여 우수성을 검증하였다. This paper proposed a curve progress control function of the area base instead of the existing edge indication function, in order to detect the brain ventricle area by utilizing a geodesic active contour model. The proposed curve progress control function is very effective in detecting the brain ventricle area and this function is based on the average brightness of the brain ventricle area which appears brighter in MRI images. Compared numerically by using various measures, the proposed method in this paper can detect brain ventricle areas better than the existing method. By examining images of normal and diseased brain's images by brain tumor, we compared the several brain ventricle detection algorithms with proposed method visually and verified the effectiveness of the proposed method.