Tactile sensing plays a crucial role in robotic manipulation, particularly for tasks involving contact-rich interactions. In this work, we propose a vision-free approach to analyze pulling forces during surface contact using raw tactile data from four Xela uSkin sensors arranged on the palm of a Shadow Hand robot. Instead of relying on calibrated force values, we extract shear information by computing the baseline-corrected deviations in the x- and y-directions of the taxels. These values are used to estimate the pulling force direction within the contact region. The proposed system allows for real-time visualization of force vectors and contour orientation, offering insights into the directions of applied forces. This setup will serve as the basis for future work on dexterous in-hand manipulation tasks using tactile feedback alone.

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Orientation and Direction Estimation of the Object Movement Using Tactile Sensor

  • Moldir Zabirova,
  • Valeriya Kostyukova,
  • Togzhan Syrymova,
  • Kamila Spanova,
  • Jabrail Chumakov,
  • Temirlan Galimzhanov,
  • Zhanat Kappassov

摘要

Tactile sensing plays a crucial role in robotic manipulation, particularly for tasks involving contact-rich interactions. In this work, we propose a vision-free approach to analyze pulling forces during surface contact using raw tactile data from four Xela uSkin sensors arranged on the palm of a Shadow Hand robot. Instead of relying on calibrated force values, we extract shear information by computing the baseline-corrected deviations in the x- and y-directions of the taxels. These values are used to estimate the pulling force direction within the contact region. The proposed system allows for real-time visualization of force vectors and contour orientation, offering insights into the directions of applied forces. This setup will serve as the basis for future work on dexterous in-hand manipulation tasks using tactile feedback alone.