大規模言語モデルを用いた空間意味推論によるUAV探索の効率化
Spatial-Semantic Reasoning using Large Language Models for Efficient UAV Search Operations
UAVの物体探索タスクにおいて、LLMが自然言語指示と検出物体・空間文脈を意味推論し、高確率な探索領域を優先することでミッション時間を短縮するリアルタイムナビゲーションフレームワークを提案した。
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著者: Marin Maletic, Marijana Peti, Tamara Petrovic, Stjepan Bogdan
分類: cs.RO, cs.AI
原文アブストラクト
We present a real-time semantic navigation framework for Unmanned Aerial Vehicles (UAVs) focused on improving time efficiency in the Object Goal Navigation (ObjectNav) task. Central to our approach is a Large Language Model (LLM) that interprets user-provided natural language instructions and performs semantic reasoning over detected objects and spatial context to prioritize high-probability search regions. The system combines real-time object detection, 3D spatial mapping, and polynomial spline interpolation for smooth and feasible UAV trajectory planning. Unlike prior methods that rely on offline reasoning or simulator-constrained action spaces, our framework can operate in real time, continuously updating semantic relevance based on new observations. Experiments in both simulated and real-world settings demonstrate reductions in mission duration while maintaining high search accuracy, underscoring the effectiveness of LLM-guided reasoning for time- efficient UAV-based ObjectNav.