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3D Laser Scanner for Underwater Manipulation.

Albert Palomer1, Pere Ridao2, Dina Youakim3

  • 1Computer Vision and Robotics Research Institute (VICOROB), Universitat de Girona, 17003 Girona, Spain. apalomer@eia.udg.edu.

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Summary
This summary is machine-generated.

Researchers developed a new underwater 3D laser scanner to improve autonomous underwater manipulation. This technology enables advanced tasks like obstacle avoidance and object grasping for underwater robots.

Keywords:
3Dlasermanipulationpoint cloudsunderwater

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Area of Science:

  • Robotics
  • Oceanography
  • Computer Vision

Background:

  • Autonomous underwater manipulation research has advanced simple tasks like object retrieval and connector mating.
  • Existing mobile robotics research demonstrates complex tasks such as obstacle avoidance and 3D model-based object recognition for grasping.
  • The underwater robotics community lacks real-time, low-cost 3D sensing capabilities comparable to land-based systems like Kinect.

Purpose of the Study:

  • Introduce a novel underwater 3D laser scanner designed for enhanced underwater manipulation.
  • Present a calibration method for integrating the 3D laser scanner with robotic manipulators.
  • Demonstrate advanced underwater manipulation capabilities beyond the current state-of-the-art.

Main Methods:

  • Development and implementation of a new underwater 3D laser scanner.
  • A calibration procedure to determine the relative pose between the manipulator and the 3D laser scanner.
  • Experimental validation using two distinct underwater manipulation systems: a fixed-base manipulator and a free-floating Underwater Vehicle-Manipulator System (UVMS).

Main Results:

  • The developed underwater 3D laser scanner provides rich 3D environmental information crucial for complex manipulation.
  • Successful demonstration of arm motion within an environment with unknown obstacles using an eight Degrees of Freedom (DoF) manipulator.
  • Autonomous grasping of an object from the seabed using an eight DoF free-floating UVMS.

Conclusions:

  • The new underwater 3D laser scanner significantly enhances the capabilities of autonomous underwater manipulation systems.
  • The demonstrated advanced manipulation tasks, including obstacle avoidance and autonomous grasping, represent a leap beyond current underwater robotics.
  • This technology paves the way for more sophisticated and autonomous operations in underwater environments.