Monitoring of a Laboratory-Scale Inland-Delta Formation using a Structured-Light System

作者：Akca Devrim; Seybold Hansjoerg

来源：Photogrammetric Record, 2016, 31(154): 121-142.

DOI：10.1111/phor.12149

• co-registration
• digital elevation model (DEM)
• geomorphology
• structured-light system
• 3D comparison
• 3D scanning

A reduced complexity model, which simulates the process of fluvial inland-delta formation, has been developed in a previous study. The results have been compared and validated with a laboratory experiment. This work elaborates the laboratory investigation in which an experimental inland delta is generated and its eroding topography is measured using a structured-light 3D scanner. The least squares 3D (LS3D) co-registration and comparison method is used for alignment as well as for comparing data epochs both spatially and temporally. A spatial precision value of around 50m (1/20000) is achieved. A series of high-quality digital elevation models (DEMs) are generated and the space-time evolution of the inland delta is monitored and analysed, in terms of slope and topography dynamics, in the consecutive DEM layers. The combination of high-resolution scanning together with high-precision co-registration techniques allows investigation of the details of the space-time variability of the sedimentation-deposition patterns to be used for geomorphological analysis.

• 出版日期2016-6
• 单位MIT