A hierarchical VQA system aggregates model answers into weighted risk scores that produce four-category safety event maps for urban navigation, backed by a new 20-city dataset where generative MLLMs like Qwen-VL outperform classification models.
Landmark-based pedestrian navigation from collec- tions of geotagged photos
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Urban Risk-Aware Navigation via VQA-Based Event Maps for People with Low Vision
A hierarchical VQA system aggregates model answers into weighted risk scores that produce four-category safety event maps for urban navigation, backed by a new 20-city dataset where generative MLLMs like Qwen-VL outperform classification models.