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Pointing-Guided Target Estimation via Transformer-Based Attention

Created by
  • Haebom

Author

Luca Muller, Hassan Ali, Philipp Allgeuer, Luk a\v{s} Gajdo\v{s}ech, Stefan Wermter

Outline

This paper proposes the Multimodality Interactive Transformer (MM-ITF), a model that enables robots to predict target objects based on human pointing gestures in human-robot interaction (HRI). MM-ITF maps 2D pointing gestures to object locations and assigns a likelihood score to each location to identify the most likely target. Experiments were conducted with the NICOL robot in a controlled tabletop environment using monocular RGB data, demonstrating accurate target object prediction results. A patch confusion matrix was introduced to evaluate model performance. The code is available on GitHub.

Takeaways, Limitations

Takeaways:
We present a new model (MM-ITF) that enables robots to accurately predict target objects through natural human instruction gestures.
Efficient human-robot collaboration is enabled using only monocular RGB data.
We propose a new evaluation metric that allows for more detailed analysis of the model's predictive performance through the patch confusion matrix.
Reproducibility and extensibility have been improved through open code.
Limitations:
Because the experiments were conducted only in a controlled tabletop environment, further verification is required to generalize the results to real-world applications.
Robustness to various types of instructional gestures and complex environments requires further research.
Additional explanation may be needed regarding the interpretation and use of the patch confusion matrix.
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