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  • 标题:Basic Study On The Preparation of Topographic Maps for Landslide Areas By An Inertial Photogrammetric Camera System
  • 本地全文:下载
  • 作者:T. Koizumi ; Y. Shirai
  • 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:2004
  • 卷号:XXXV Part B5
  • 页码:855-860
  • 出版社:Copernicus Publications
  • 摘要:W ith the use of an accelerometer and a gyro that are inertial sensors, it is possible to calculate both the distance and angle. That is, if a camera is mounted with an accelerometer and a gyro, the position and gradient of the camera when it takes a photograph can be calculated. In this paper, a camera mounted with inertial sensors is defined as an inertial photogrammetric camera. In this paper, using the inertial photogrammetric camera system for terrestrial photogrammetry that was developed by the authors, the topographic maps of landslide areas were prepared. A landslide area subject to this study was about 60 meters in height, the width of its lower end was about 100 meters, and its oblique angle was about 50 degrees. W hile moving the cart on a river bank that was located about 120 meters away from the landslide area, the stereo photographs of the landslide area were taken. To examine the accuracy of measured results obtained by the inertial photogrammetry, a white polystyrene foam plate with a size of 80 x 80 cm was placed on several locations in the landslide area. Those locations were then measured by a Total Station and the obtained data were regarded as the true values. Based on the photographs taken, a topographic map (contour map) was prepared. The result of the research showed that the system developed in this study was effective.
  • 关键词:Landslides; Development; M easurement; Camera; Disaster; Systems; Close Range
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