SENT Map - Semantically Enhanced Topological Maps with Foundation Models
Indoor autonomous navigation suffers from inadequate semantic representation, inflexible editing of semantic information, and frequent generation of physically infeasible paths during planning. Method: We propose the Semantically Enhanced Topological Map (SENT-Map), a lightweight JSON-based representation unifying human-readable and foundation-model-(FM-)parsable semantic knowledge, enabling natural-language-driven interactive editing. A node-anchoring mechanism constrains the planning space to ensure physical feasibility. SENT-Map integrates vision foundation models for environment perception and semantic mapping, and introduces a two-stage, natural-language-driven planning framework that enables efficient execution of complex tasks using small, localized FMs. Contribution/Results: Experiments demonstrate that SENT-Map significantly improves task success rates while maintaining high robustness and generalization under resource-constrained conditions, establishing a scalable semantic modeling paradigm for lightweight embodied intelligence.