TactileSGNet: A Spiking Graph Neural Network for Event-based Tactile Object Recognition, Fuqiang Gu★, Weicong Sng, Tasbolat Taunyazov★, and Harold Soh★, IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS)
Links: Paper | Github

Tactile perception is crucial for a variety of robot tasks including grasping and in-hand manipulation. New advances in flexible, event-driven, electronic skins may soon endow robots with touch perception capabilities similar to humans. These electronic skins respond asynchronously to changes (e.g., in pressure, temperature), and can be laid out irregularly on the robot’s body or end-effector. However, these unique features may render current deep learning approaches such as convolutional feature extractors unsuitable for tactile learning. In this paper, we propose a novel spiking graph neural network for event-based tactile object recognition. To make use of local connectivity of taxels, we present several methods for organizing the tactile data in a graph structure. Based on the constructed graphs, we develop a spiking graph convolutional network. The event-driven nature of spiking neural network makes it arguably more suitable for processing the event-based data. Experimental results on two tactile datasets show that the proposed method outperforms other state-of-the-art spiking methods, achieving high accuracies of approximately 90% when classifying a variety of different household objects.

Resources

You can find our paper here. Check out our repository here on github

Citation

Please consider citing our paper if you build upon our results and ideas.

Fuqiang Gu★, Weicong Sng, Tasbolat Taunyazov★, and Harold Soh★, “TactileSGNet: A Spiking Graph Neural Network for Event-based Tactile Object Recognition”, IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS)

@inproceedings{gu2020tactilesgnet,
title = {Tactilesgnet: A spiking graph neural network for event-based tactile object recognition},
author = {Gu, Fuqiang and Sng, Weicong and Taunyazov, Tasbolat and Soh, Harold},
booktitle = {IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS)},
pages = {9876--9882},
year = {2020},
organization = {IEEE}}

Contact

If you have questions or comments, please contact Fuqiang Gu.


Acknowledgements

This work was supported by the SERC, A*STAR, Singa- pore, through the National Robotics Program under Grant No. 172 25 00063.

Written by

Fuqiang Gu