题名: |
Method for Automated Discontinuity Analysis of Rock Slopes with Three-Dimensional Laser Scanning. |
作者: |
Slob-Siefko; van-Knapen-Bart; Hack-Robert; Turner-Keith; Kemeny-John |
关键词: |
Asset-management; Communications-; Computer-models; Flash-laser-radar; Infrastructure-; Laser-radar; Process-control; Real-time-information; Three-dimensional-displays; Visualization- |
摘要: |
Modeling transportation infrastructure assets in three dimensions (3D) is becoming increasingly necessary for good management. Condition assessment, maintenance, operations, and construction activities are exploiting 3D models for improved visualization, communications, and process control. Acquiring 3D models rapidly can improve safety and productivity and is becoming feasible through approaches based on sparse range point clouds; however, although this approach has contextual advantages, it is ultimately limited in speed. Emerging Flash laser detection and ranging (LADAR) technology is opening up the possibility of 3D modeling at rates better than 1 Hz (real time). A framework for 3D modeling is presented that includes the dimension of time. In particular, the performance of the Flash LADAR technology is examined, and potential applications are explored. Technologies such as Flash LADAR will play an important role in real-time modeling of infrastructure assets in the near future. |
总页数: |
Transportation Research Record: Journal of the Transportation Research Board. 2005. (1913) pp177-186 (Phots., 7 Fig., 1 Tab., 17 Ref.) |
报告类型: |
科技报告 |