VL-Explore: Zero-shot Vision-Language Exploration and Target Discovery by Mobile Robots

Fuente: arXiv
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Auteurs principaux: Zhang, Yuxuan, Abdullah, Adnan, Koppal, Sanjeev J., Islam, Md Jahidul
Format: Preprint
Publié: 2025
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author Zhang, Yuxuan
Abdullah, Adnan
Koppal, Sanjeev J.
Islam, Md Jahidul
author_facet Zhang, Yuxuan
Abdullah, Adnan
Koppal, Sanjeev J.
Islam, Md Jahidul
contents Vision-language navigation (VLN) has emerged as a promising paradigm, enabling mobile robots to perform zero-shot inference and execute tasks without specific pre-programming. However, current systems often separate map exploration and path planning, with exploration relying on inefficient algorithms due to limited (partially observed) environmental information. In this paper, we present a novel navigation pipeline named "VL-Explore" for simultaneous exploration and target discovery in unknown environments, leveraging the capabilities of a vision-language model named CLIP. Our approach requires only monocular vision and operates without any prior map or knowledge about the target. For comprehensive evaluations, we designed a functional prototype of a UGV (unmanned ground vehicle) system named "Open Rover", a customized platform for general-purpose VLN tasks. We integrated and deployed the VL-Explore pipeline on Open Rover to evaluate its throughput, obstacle avoidance capability, and trajectory performance across various real-world scenarios. Experimental results demonstrate that VL-Explore consistently outperforms traditional map-traversal algorithms and achieves performance comparable to path-planning methods that depend on prior map and target knowledge. Notably, VL-Explore offers real-time active navigation without requiring pre-captured candidate images or pre-built node graphs, addressing key limitations of existing VLN pipelines.
format Preprint
id arxiv_https___arxiv_org_abs_2502_08791
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle VL-Explore: Zero-shot Vision-Language Exploration and Target Discovery by Mobile Robots
Zhang, Yuxuan
Abdullah, Adnan
Koppal, Sanjeev J.
Islam, Md Jahidul
Robotics
Vision-language navigation (VLN) has emerged as a promising paradigm, enabling mobile robots to perform zero-shot inference and execute tasks without specific pre-programming. However, current systems often separate map exploration and path planning, with exploration relying on inefficient algorithms due to limited (partially observed) environmental information. In this paper, we present a novel navigation pipeline named "VL-Explore" for simultaneous exploration and target discovery in unknown environments, leveraging the capabilities of a vision-language model named CLIP. Our approach requires only monocular vision and operates without any prior map or knowledge about the target. For comprehensive evaluations, we designed a functional prototype of a UGV (unmanned ground vehicle) system named "Open Rover", a customized platform for general-purpose VLN tasks. We integrated and deployed the VL-Explore pipeline on Open Rover to evaluate its throughput, obstacle avoidance capability, and trajectory performance across various real-world scenarios. Experimental results demonstrate that VL-Explore consistently outperforms traditional map-traversal algorithms and achieves performance comparable to path-planning methods that depend on prior map and target knowledge. Notably, VL-Explore offers real-time active navigation without requiring pre-captured candidate images or pre-built node graphs, addressing key limitations of existing VLN pipelines.
title VL-Explore: Zero-shot Vision-Language Exploration and Target Discovery by Mobile Robots
topic Robotics
url https://arxiv.org/abs/2502.08791