Analysis of Uncertainty in Laser-Scanned Bathymetric Maps
Analysis of Uncertainty in Laser-Scanned Bathymetric Maps
复制标题
激光扫描测深图的不确定性分析
DOI：
--
复制
发表时间：
2018
期刊：
影响因子：
--
通讯作者：
B. Thornton
中科院分区：
文献类型：
--
作者：
M. Leat;A. Bodenmann;M. Massot;B. Thornton
为了使三维海底地图可用作定量测量工具，必须评估数据的尺寸不确定性。这项研究提出了一种测量不确定性的算法，该算法可以应用于任何使用立体相机和片状激光的系统，并且可以生成具有有限空间误差的地图。所描述的方法通过将计算机视觉技术应用于立体摄像机捕获的图像来评估用于光切片的片状激光器的设置精度。该算法应用于2017年在日本海岸Takuyo Daigo海山收集的数据集，并用于表征使用自主水下航行器获得的数据的维度不确定性。
For 3D seafloor maps to be usable as a quantitative measurement tool, the dimensional uncertainty of the data must be assessed. This research proposes an algorithm for measuring the uncertainty, that can be applied to any system that uses a stereo camera and sheet laser, and can produce maps with bounded dimensional error margins. The methods described evaluate the setup accuracy of the sheet laser used for light sectioning by applying computer vision techniques to the images captured by a stereo camera. The algorithm was applied to a data set collected off the coast of Japan in 2017 at Takuyo Daigo Seamount and was used to characterise the dimensional uncertainty of the data that was obtained using an autonomous underwater vehicle.