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이재기 ( Jae Kee Lee ) 충북대학교 건설기술연구소 2011 建設技術論文集 Vol.30 No.1
The spatial information is constructed by ``Si`` or ``Gun`` units. It cannot be periodically reconstructed or updated regularly because it requires much time and cost. The 3D spatial information can be updated using digital maps, which are updated every two years for metropolitan areas and every four years for the rest. The update of the 3D spatial information using digital maps is disadvantageous, because the changes that occur between the updates cannot be applied. Therefore, an on-demand update system is required, instead of the periodic bulk update system with two to four year intervals. This study proposed a method of acquiring aerial images of cities where geographic features, such as terrain and objects often change, by installing a camera in an UAV(Unmanned Aerial Vehicles); and a technique for constructing or frequently updating the 3D spatial information using the acquired aerial images. Thus, this study was conducted to reduce the cost and time for updating, minimize overlapping investments, and improve the quality and reliability of 3D spatial information.
이재인 ( Jae In Lee ),박현정 ( Hyun Jeong Park ),이준영 ( Jun Young Lee ),조백기 ( Baik Kee Cho ) 대한피부과학회 2009 대한피부과학회지 Vol.47 No.3
Tuberculid is thought to develop as a hypersensitive immunologic reaction in the skin to an occult internal focus of tuberculosis. Lichen scrofulosorum (LS) is a rare tuberculid, which usually develops in children and young adults. Rarely, lichen scrofulosorum can be caused by Bacillus Calmette-Guerin (BCG) vaccination. With the increasing use of BCG inoculation, several complications have been reported. However, there have been no reports of lichen scrofulosorum following BCG vaccination in the Korean literature. We report a case of lichen scrofulosorum developing after BCG vaccination. (Korean J Dermatol 2009;47(3):309∼312)