TY  - JOUR
A1  - Bräuer-Burchardt, Christian
A1  - Munkelt, Christoph
A1  - Bleier, Michael
A1  - Heinze, Matthias
A1  - Gebhart, Ingo
A1  - Kühmstedt, Peter
A1  - Notni, Gunther
T1  - Underwater 3D scanning system for cultural heritage documentation
JF  - Remote Sensing
N2  - Three-dimensional capturing of underwater archeological sites or sunken shipwrecks can support important documentation purposes. In this study, a novel 3D scanning system based on structured illumination is introduced, which supports cultural heritage documentation and measurement tasks in underwater environments. The newly developed system consists of two monochrome measurement cameras, a projection unit that produces aperiodic sinusoidal fringe patterns, two flashlights, a color camera, an inertial measurement unit (IMU), and an electronic control box. The opportunities and limitations of the measurement principles of the 3D scanning system are discussed and compared to other 3D recording methods such as laser scanning, ultrasound, and photogrammetry, in the context of underwater applications. Some possible operational scenarios concerning cultural heritage documentation are introduced and discussed. A report on application activities in water basins and offshore environments including measurement examples and results of the accuracy measurements is given. The study shows that the new 3D scanning system can be used for both the topographic documentation of underwater sites and to generate detailed true-scale 3D models including the texture and color information of objects that must remain under water.
KW  - underwater 3D scanning
KW  - structured light illumination
KW  - object reconstruction
KW  - 3D model generation
KW  - site mapping
Y1  - 2023
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-311116
SN  - 2072-4292
VL  - 15
IS  - 7
ER  -