Abstract:
본 발명은 영상정보를 이용한 지리정보 구축 및 브라우징 시스템과 그 방법에 관한 것으로서, 복수의 카메라에 의해 스테레오 영상과 카메라의 위치 및 자세정보를 수집하는 영상수집부와; 스테레오 영상과 이 스테레오 영상 수집 시의 카메라의 위치와 자세정보를 저장하고, 스테레오 영상에 나타난 지리객체에 대한 3차원 좌표들을 수치지도로 저장하는 데이터베이스부; 및 데이터베이스부에 저장된 스테레오 영상과 카메라의 위치와 자세정보로부터 스테레오 영상에 나타난 지리객체의 3차원 좌표들을 계산하여 구축한 지리정보를 수치지도로 데이터베이스부에 저장하고, 스테레오 영상과 수치지도에 대하여 양방향으로 검색 및 브라우징 서비스를 제공하는 지리정보 구축/브라우징 서버로 구성되며, 이에 따라서, 실제 측량을 하지 않고도 막대한 시간과 노력이 소비되는 지리정보의 구축을 정확하고 용이, 신속하게 수행함과 동시에, 구축된 지리객체에 대하여 지도와 영상에서 양방향으로 공간검색 및 시각적인 브라우징을 제공한다.
Abstract:
A precise determination and application apparatus and method using position information of an RFID(Radio Frequency Identification) system are provided to remove a possibility of leakage of personal information, generate and utilize traffic situation information changing in real time, and generate various traffic and space information at a low cost by adjusting stages for processing traffic information. A position information providing unit(10) transfers accurate position information by using an internally mounted RFID system. A position information obtaining/managing unit(20) receives the position information from the position information providing unit(10), generates a traffic information set which does not have identification information of a car, and transfers it. A traffic information collecting/managing unit(30) obtains position and traffic information transmitted from the position information obtaining/managing unit(20). A traffic information utilizing/managing unit(40) creates traffic information service contents by using the position and traffic information transferred from the traffic information collecting/managing unit(30) and provides the contents to a user.
Abstract:
PURPOSE: A nonlinear optical material having a dendrimer structure is provided, to prevent the decrease of nonlinearity or the optical loss due to the containing of a chromophore and to improve thermal and optical stabilities. CONSTITUTION: A nonlinear optical material has a dendrimer structure comprising an ester bond and/or an ether bond as a basic frame and contains an organic chromophore bonded to the polymer end of a dendrimer structure. Preferably the organic chromophore is selected from the table 1, wherein R and R1' are H, Ph or a C1-C6 alkyl group; n is an integer of 1-11; and B is a C1-C6 alkyl group or a C1-C6 COO-alkyl group. Preferably a non-chromophore is bonded to some of the polymer end of a dendrimer structure, and the non-chromophore is a C1-C6 aliphatic or aromatic hydrocarbon-based compound.
Abstract:
PURPOSE: A system and a method for a gradual spatial data service are provided to gradually output the spatial data to a screen by gradually transmitting the spatial data to a user and request the new data transmission if the user needs the new spatial data on a process for confirming spatial information. CONSTITUTION: A spatial information output part(11) gradually displays the received spatial data to the screen for each predetermined time. A spatial information requestor(12) periodically requests the spatial data to a spatial data server(20) gradually transmitting the requested spatial data until the entire requested spatial data is received. A spatial information receiver(13) converts the received spatial data into an internal storing form of the client and provides it to the spatial information output part.