期刊
2021 IEEE INTERNATIONAL CONFERENCE ON ROBOTICS AND AUTOMATION (ICRA 2021)
卷 -, 期 -, 页码 6468-6475出版社
IEEE
DOI: 10.1109/ICRA48506.2021.9560783
关键词
-
资金
- Toyota Research Institute (TRI)
- Office of Naval Research (ONR) [N00014-18-1-2815]
Vision-based tactile sensors have the potential to provide important contact geometry for localizing objectives with visual occlusion. The GelSight Wedge sensor is optimized for compact robot fingers, achieving high-resolution 3D reconstruction and showing flexibility in design. The effectiveness and potential of the reconstructed 3D geometry for pose tracking in 3D space is demonstrated.
Vision-based tactile sensors have the potential to (a) provide important contact geometry to localize the objective with visual occlusion. However, it is challenging to measure high-resolution 3D contact geometry for a compact robot finger, to simultaneously meet optical and mechanical constraints. In this work, we present the GelSight Wedge sensor, which is optimized to have a compact shape for robot fingers, while achieving high-resolution 3D reconstruction. We evaluate the 3D reconstruction under different lighting configurations, and extend the method from 3 lights to 1 or 2 lights. We demonstrate the flexibility of the design by shrinking the sensor to the size of a human finger for line manipulation tasks. We also show the effectiveness and potential of the reconstructed 3D geometry for pose tracking in the 3D space.
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