期刊
IEEE TRANSACTIONS ON ROBOTICS
卷 38, 期 3, 页码 1773-1792出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TRO.2021.3113996
关键词
Robots; Planning; Tools; Painting; Strain; Visualization; Cognition; Grasping; motion planning; 3D robotic drawing
类别
资金
- New Energy, and Industrial Technology Development Organization (NEDO) [JPNP20006]
This robotic system autonomously draws on 3-D surfaces with flexibility and robustness. The system does not fix drawing tools to the end of the robot arm, but instead recognizes and picks up pens online for drawing. Various techniques are employed to ensure drawing quality, with error detection and recovery implemented to handle anomalies.
This article develops a flexible and robust robotic system for autonomously drawing on 3-D surfaces. The system takes 2-D drawing strokes and a 3-D target surface (mesh or point clouds) as input. It maps the 2-D strokes onto the 3-D surface and generates a robot motion to draw the mapped strokes using visual recognition, grasp pose reasoning, and motion planning. The system is flexible compared to conventional robotic drawing systems as we do not fix drawing tools to the end of a robot arm. Instead, a robot recognizes and picks up pens online and holds the pens to draw 3-D strokes. Meanwhile, the system has high robustness thanks to the following crafts: First, a high-quality mapping method is developed to minimize deformation in the strokes. Second, visual detection is used to reestimate the drawing tool's pose before executing each drawing motion. Third, force control is employed to compensate for noisy visual detection and calibration and ensure a firm touch between the pen tip and the surface. Fourth, error detection and recovery are implemented to deal with slippage and other anomalies. The planning and executions are performed in a closed-loop manner until the strokes are successfully drawn. We evaluate the system and analyze the necessity of the various crafts using different real-world tasks. The results show that the proposed system is flexible and robust to generate robotic motion that picks up the pens and successfully draws 3-D strokes on given surfaces.
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