Abstract
대용량의 공간정보의 인터넷을 통한 활용이 활성화되면서 더 정확하고 풍부하며 최신의 정보를 가진 자료에 대한 사용자의 요구는 꾸준히 증가하고 있어 기 구축된 자료 간 융합을 통합 새로운 서비스 제공의 필요성이 커지고 있다. 이중에서 항공사진과 도로 벡터 자료를 융합한 서비스는 직관적이고 정확하게 정보를 전달 할 수 있어 많은 포털사이트에서 제공중인 서비스이나 자료 간 공간 불일치를 해결해야 한다. 본 연구에서는 도로 후보 영상 추출, 템플릿 매칭, 벡터 미디언 필터를 거쳐 자료 간 조정을 수행하였으며 완성도와 부합도로 정확도를 평가한 결과 원래 데이터에 비해 약 35% 향상되었음을 확인할 수 있었다. Recent growth of the geospatial information on the web made it possible to applicate spatial data. Also, the demand for rich and latest information shows a steady growth. The need for the new service using conflation of the existing spatial databases is on the increase. The information delivery of the services using the road vector and aerial image is reached intuitionally and accurately. However, the spatial inconsistencies in map services such as Daum map, Naver map and Google map is the problem. Our approach is processed to extract the road candidate image, match the template and filter the control points pair using vector median. Finally, CNS node and link are aligned to the real road with the aerial image. The experimental results show that our approach can align a set of CNS node and link with aerial imagery for daejon, such that the completeness and correctness of the aligned road have improved about 35% compare with the original roads.
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