期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2007
卷号：XXXVI-5/W47
出版社：Copernicus Publications
摘要：Moroyama town is located in the south western part of Saitama P refecture, which is 50 km from the central part of Tokyo. Moroyama is historical town including more than 80 small ancient burial mounds. The ancient burial mounds locate in brush-land along the Oppe river through the northern part of Moroyama. The diameter for these ancient burial mounds are about 5-15m, and it is supposed that some of the ancient burial mounds are not yet found because of archaeological investigation does not accomplish. These small ancient burial mounds under the same situation are distributed not only Moroyama but also all over the Japan. In generally, archaeological investigation for these small ancient burial mounds is performed using great time and labor, these labors accompanies archaeological investigation of small ancient burial mounds, nevertheless archaeological investigation of small ancient burial mounds are indispensable for understanding the history and culture in those days. On the other hand, airborne laser scanner has been receiving more attention as a useful tool for real-time 3D data acquisition, and many applications such as city modelling, DTM generation, monitoring electrical power lines and detection of forest areas were proposed. However, robust filtering for distinguish on-and-off terrain points from point cloud 3D data collected by airborne laser surveying is still issues. In particular, DTM generation for brush-land area is issue because of covered with trees. In order to improve above issue and perform archaeological investigation for small ancient burial mounds, helicopter laser surveying was performed in this paper since helicopter laser surveying has some advantages such as the helicopter can fly at low altitude and low speed compared with aircraft
