• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2022.11a
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• pp.192-194
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• 2022

국제수로기구는 전자해도 표준을 개정하기 위해 S-100 기반 범용수로데이터 모델을 개발하였고, 국제항로표지협회는 항로표지, PNT, VTS, AIS 도메인의 정보교환을 위해 S-200 시리즈 정보교환 표준개발을 결정하였다. 항로표지 정보는 전자해도, 등대표, 항행통보를 구성하는 중요 정보로서, 항로표지의 현황과 상태 정보는 항해사의 해사안전정보 준비에 있어서 필수라고 할 수 있다. 국제항로표지협회와 국제수로기구는 각 도메인의 해양정보 교환표준 개발 현황을 공유하고 특히 항로표지 정보교환 표준개발 협력을 위해 공동 워크숍을 개최였다. 공동 워크숍에서는 S-201, S-125, S-124 등의 표준개발 사항을 논의하고, 항로표지 정보 제작 및 서비스에 대한 공감대를 형성하였다. 본 연구에서는 항로표지 관련 정보표준 개발 현황을 기술하고, IALA/IHO 공동 워크숍 주요 결과를 정리 하였다. 또한 공동 워크숍 후속 조치의 일환으로 항로표지 정보 제작 및 서비스에 관한 실해역 데모 방안을 소개 한다.

• The KIPS Transactions:PartB
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• v.11B no.2
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• pp.149-158
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• 2004

This study proposes a method for segmentation and recognition of traffic signs using shape information and edge image in real image. It first segments traffic sign candidate regions by connected component algorithm from binary images, obtained by utilizing the RGB color ratio of each pixel in the image, and then extracts actual traffic signs based on their symmetries on X- and Y-axes. Histogram equalization is performed for unsegmented candidate regions caused by low contrast in the image. In the recognition stage, it utilizes shape information including projection profiles on X- and Y-axes, moment, and the number of crossings and distance which concentric circular patterns and 8-directional rays from region center intersects with edges of traffic signs. It finally performs recognition by measuring similarity with the templates in the database. It will be shown from several experimental results that the system is robust to environmental factors, such as light and weather condition.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2023.11a
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• pp.177-179
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• 2023

항로표지에 설치된 카메라에서 촬영한 영상으로 해무 강도를 측정한다. 영상 이미지를 Dark Channel 값으로 바꾼 후에 특정 문턱값을 기준으로 전체 영상에서 해무가 존재하지 않은 픽셀 개수의 비율을 통해서 해무 강도를 추정하여 날씨로 인한 항로 표지 안전사고를 해결하는 것을 제안한다..

• Journal of Digestive Cancer Research
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• v.4 no.1
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• pp.32-35
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• 2016

Pseudomyxoma peritonei (PMP) is a rare clinical syndrome characterized by profuse jelatinous materials in the abdominal cavity and pelvis with mucinous implants on the peritoneal surface. There are some studies for serum tumor markers, including carcinoembryonic antigen (CEA), carbohydrate antigen 19-9 (CA19-9) and carbohydrate antigen 125 (CA125), to assess the risk of recurrence following cytoreductive surgery and intraperitoneal chemotherapy. However, rare cases were reported about recurrence with increasing serum CEA levels. Herein, we report a case of recurrence of PMP according to serially elevated serum CEA.

• Journal of Digestive Cancer Research
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• v.6 no.2
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• pp.59-63
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• 2018

Over the past decade, circulating tumor cell have received tremendous attention as new biomarkers and basic research subjects.In recent years, research on circulating tumor DNA, exosomes and microRNAs has also been actively conducted.These circulating tumor markers have the potential to become the basis of precision medicine, such as determining the genome / immune profile, monitoring response and tolerance, and selecting therapeutic agents beyond the early diagnosis and prognosis prediction.In this article, we introduce the diagnostic methods, efficacy, meaning, and applicability of various circulating tumor markers.

• 월간 기계설비
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• s.285
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• pp.89-99
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• 2014

세미나를, 혹은 공연을 보면서 하늘을 볼 수 있다면? 또 전문분야인 의과학 세미나 과정을 일반인들이 밖에서 지켜볼 수 있다면? 흔히 세미나와 공연은 집중을 요하기 때문에 밀폐된 시설로 건축된다. 그런데 세미나실을 투명한 유리로 마감하여 오픈된 공간으로의 과감한 선택과 대강의실에서 하늘의 구름과 별, 그리고 채광을 한껏 받아들일 수 있도록 설계된 건물이 우리나라에 들어선다. 인류의 질병치료와 생명연장 이념으로 건립되는 차병원그룹 판교종합연구소다. 세계적인 의과학 연구소로의 발돋움은 물론 국내 의료계 발전을 위한 랜드마크로서의 의미가 큰 차병원그룹 판교종합연구소는 (주)대우건설이 시공을 총괄하고 환경이엔지(주)가 기계설비 시공을 담당하고 있다. 본지는 차병원그룹 판교종합연구소를 이달의 표지로 선정했다.

• Journal of Broadcast Engineering
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• v.23 no.1
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• pp.93-103
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• 2018

This paper presents a method for speed limit sign recognition in images. Conventional sign recognition methods decreases recognition accuracy because they are very sensitive and include repeated features. The proposed method emphasizes color attributes based on the weighted YUV color space. Moreover, the recognition accuracy can be improved by extracting the local region of interest (ROI) in the candidates. The proposed method uses the Haar features and the Adaboost classifier for recognition. Experimental results confirm that the proposed algorithm is superior to conventional algorithms under various speed signs and conditions.

• The Journal of the Korea Contents Association
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• v.7 no.2
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• pp.63-72
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• 2007

The traffic sign on the road should be easy to distinguishable even from far, and should be recognized in a short time. As traffic sign is a very important object which provides important information for the drivers to enhance safety, it has to attract human's attention among any other objects on the road. This paper proposes a new method of detecting the area of traffic sign, which uses attention module on the assumption that we attention our gaze on the traffic sign at first among other objects when we drive a car. In this paper, we analyze the previous studies of psycophysical and physiological results to get what kind of features are used in the process of human's object recognition, especially color processing, and with these results we detected the area of traffic sign. Various kinds of traffic sign images were tested, and the results showed good quality(average 97.8% success).

• Journal of the Korean Society for Aviation and Aeronautics
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• v.26 no.4
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• pp.110-115
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• 2018

This paper introduces Korea Airport Corporation's own research and development contents and plans for navigation aids check using drone which is actively research and developed mainly in advanced countries. The hardware, algorithm, operating program of the drone system, the drone flight trajectory setting, and real-time measurement results were analyzed and verified. By securing domestic technology for the latest technology utilizing drone, we plan to promote more thorough aviation safety and advanced technology in related field and commercialized it in domestic and overseas.

• Journal of Korean Medical classics
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• v.18 no.2 s.29
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• pp.168-189
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• 2005

통과분석(通過分析)${\ulcorner}$금궤요약심전(金櫃要略心典) 장부경락선후병맥증제일(臟腑經絡先後病脈證第一)${\lrcorner}$ 중우재경적주석(中尤在據的注釋), 득출여하결론(得出如下結論): 1. 우재경반대이용오행상생상극이론진행장련분석(尤在濫反對利用五行相生相池理論進行長蓮分析), 인위분석일차성상관관계즉가(認爲分析一次性相關關係卽可). 2. 제창오미적오장체용보사이론(提唱五味的五臟體用補瀉理論) 3. 이흡기정도구분삼초각부위적실송(以吸氣程度區分三焦各部位的實訟) : 미수시상초실(微數是上焦實), 촉시중초실(促是中焦實), 원시하초실(遠是下焦實) 4. 이척부출현부맥(以尺部出現浮脈), 판단위표지리(判斷爲表之裏), 장출현요통배강불능행적증상(將出現腰痛背强不能行的症狀), 여과입리(如果入裏), 장출현(將出現) ‘단기이극’적증상(‘短氣而極’的症狀). 5. 종(從)1-13조문중(條文中) '대사(大邪)'. '소사적주석급(小邪'的注釋及)1-17조문중‘소득’등적주석내용(條文中‘所得’等的注釋內容), 가이간출(可以看出), 우재여불근종(尤在濾不謹從)${\ulcorner}$금궤요약(金櫃要略)${\lrcorner}$, 차근거림상실제내진행주석(且根據臨床實際來進行注釋).