This paper, for the first time, proposes a solution for the problem of in-hand object recognition via surface textures. In this study, a robotic hand with an artificial skin on the fingertips was employed to explore the texture properties of various objects. This was conducted via the small sliding movements of the fingertips of the robot over the object surface as a human does. Using our proposed robust tactile descriptors, the robotic system is capable of extracting information-rich data from the raw tactile signals. These features then assist learning algorithms in the construction of robust object discrimination models. The experimental results show that the robotic hand distinguished between different in-hand objects through their texture properties (regardless of the shape of the in-hand objects) with an average recognition rate of 97% and 87% while employing SVM and PA as an online learning algorithm, respectively.
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