Seafloor Mapping by 360 Degree View Camera with Sonar Supports

Seafloor mapping is usually done by many kinds of sonars. Recently, the mapping is tried by cameras and laser scanners whose resolution is higher in short range than sonars. But the area illuminated by floodlights isn't large underwater and there is few or no ambient light over 100 m depth. The...

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Bibliographic Details
Published in2018 OCEANS - MTS/IEEE Kobe Techno-Oceans (OTO) pp. 1 - 4
Main Authors Sawa, Takao, Yanagi, Takura, Kusayanagi, Yoshinori, Tsukui, Shingo, Yoshida, Akira
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.05.2018
Subjects
360 degree camera
Around View Monitor System
Cameras
Image resolution
mapping
Monitoring
OAS
object avoidance sonar
Sea floor
Sonar
surround view
Test equipment
Three-dimensional displays
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Summary:Seafloor mapping is usually done by many kinds of sonars. Recently, the mapping is tried by cameras and laser scanners whose resolution is higher in short range than sonars. But the area illuminated by floodlights isn't large underwater and there is few or no ambient light over 100 m depth. Therefore, in deep water, camera view is much smaller than the original Field of View. To maximize the performance of underwater observation with cameras, we developed an image capturing processing and visualization system in collaboration with Nissan Motor Company that builds upon and extends the technology used in their Around View Driving Assistance System. The view of the system covers all of the lower hemisphere, and records the view and undulations of seafloor using sonar.
DOI:10.1109/OCEANSKOBE.2018.8559360