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임명재,현성경,박지은,이기영 국제인공지능학회 2011 한국인터넷방송통신학회 논문지 Vol.11 No.1
The modern society with the wide spread recognition of the importance of informatics and for the development of information and communication technology is rapidly processing. Especially the rapid development in mobile technology boost up the general expectation that one can get the information he wants anytime anywhere. Accordingly image search for the convenient information retrieval is becoming common. However general image search has difficulties because inexactitude extracting character in the image and getting the detail information in extracted character. Therefore these paper make character recognition through the images that I photographed a sightseeing resort, a signboard of a lot of stores to a smart phone camera, so information offer to be convenient to users is a purpose. A user can get detailed information, by character extraction way called top-hat algorithm and connect to a server.
손주영,최진,최영준,배영호,박장현,문홍규,임홍서,김명진,임여명,현성경,김지혜,조중현 사단법인 한국위성정보통신학회 2013 한국위성정보통신학회논문지 Vol.8 No.4
As we, human expand its everyday life boundary to the geosynchronous orbit, we have experienced frequent chance of theatmospheric re-entry and surface impact of space objects(satellite and space debris). Recently a satellite re-entry monitoringroom in Korea has been operated to predict the time and the location of the re-entry of space objects. However, we do nothave a domestic version of a numerical re-entry model for normal operation using TLE (Two line Element) information fromthe United States Strategic Command yet. The space information from the several space operation centers has been usedto analyse the re-entry situations. In this paper, the re-entry time is calculated with TLE based on the several atmospheremodels, the result is comprehensively analyzed, a new re-entry case model fitted from the result of the predicted satellitere-entry times by a new Rubber Sheet Shift Method used by the domestic satellite re-entry room is suggested. 인공위성을 포함한 우주물체가 지구궤도로 재진입하고 대기권에서 소실되거나, 지표면에 추락하는 일들이 날로 증가하고 있다. 최근국내에서도 위성추락상황실을 운영하여 인공위성의 추락고도 및 추락시기에 대한 예측을 실시하였다. 아직까지 국내에서는 우주물체의 추락 시 현업에 적용할 수 있는, 미전략사령부에서 발표하는 TLE 자료를 활용한 독자적인 추락예측모델이 없으며, 다른 위성운영국에서 발표하는 추락 예상시기를 참고하였다. 이 연구에서는 TLE 자료에 대기모델을 바탕으로 추락예상시기를 예측하고, 분석한 결과를 종합 분석하였고, 위성추락상황실 운영간 적용했던 RUBBER SHEET SHIFT METHOD(RSSM)의 인공위성 예상추락시기 예측결과를 토대로 새로운 추락모델에 대한 예시를 제안하였다.