ViT-A*: Legged Robot Path Planning using Vision Transformer A*

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Oct 11, 2023
Jianwei Liu, Shirui Lyu, Denis Hadjivelichkov, Valerio Modugno, Dimitrios Kanoulas

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Legged robots, particularly quadrupeds, offer promising navigation capabilities, especially in scenarios requiring traversal over diverse terrains and obstacle avoidance. This paper addresses the challenge of enabling legged robots to navigate complex environments effectively through the integration of data-driven path-planning methods. We propose an approach that utilizes differentiable planners, allowing the learning of end-to-end global plans via a neural network for commanding quadruped robots. The approach leverages 2D maps and obstacle specifications as inputs to generate a global path. To enhance the functionality of the developed neural network-based path planner, we use Vision Transformers (ViT) for map pre-processing, to enable the effective handling of larger maps. Experimental evaluations on two real robotic quadrupeds (Boston Dynamics Spot and Unitree Go1) demonstrate the effectiveness and versatility of the proposed approach in generating reliable path plans.

* IEEE-RAS International Conference on Humanoids Robots (Humanoids) 2023  * 6 pages, 6 figures, conference  
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