Assessing the Potential of a Low-Cost 3-D Sensor in Shallow-Water Bathymetry

被引:11
作者
Klopfer, Florian [1 ]
Haemmerle, Martin [1 ]
Hoefle, Bernhard [1 ]
机构
[1] Heidelberg Univ, Spatial Data Proc Grp 3D, Dept Geog, D-69120 Heidelberg, Germany
关键词
Granulometry; kinect; quality assessment; shallow water bathymetry; wave mitigation; HIGH-RESOLUTION; KINECT; LIDAR; RANGE;
D O I
10.1109/LGRS.2017.2713991
中图分类号
P3 [地球物理学]; P59 [地球化学];
学科分类号
0708 ; 070902 ;
摘要
Highly detailed 3-D geoinformation about bathymetry is crucial to understand a wide range of processes and conditions in the geosciences. Recently, low-cost sensors such as Microsoft's structured-light 3- D camera Kinect for Xbox 360 have been deployed to complement established sources of 3- D bathymetric data like light detection and ranging or sound navigation and ranging. In this letter, we assess the Kinect's applicability to capture the bathymetry of shallow waters. Therefore, the maximum capturing range through water, accuracy, and precision of Kinect measurements are examined. Additionally, we test a recording setup which allows for the mitigation of waves and which features advantages in terms of refraction correction on a scene containing submerged gravels. As a result, water depths of 30 cm (outdoors) and 40 cm (indoors) can be penetrated. The accomplished accuracy [mean standard deviation (SD) 7 mm] and precision values (mean SD 3.1 mm) are similar to the ones achieved by terrestrial laser scanning bathymetry. Derived gravel sizes highly correspond to the manual reference measurements. Overall, the findings show the Kinect's applicability in researching shallow natural water bodies.
引用
收藏
页码:1388 / 1392
页数:5
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