Seeing Is Not Measuring: Tool-Augmented Metric Spatial Reasoning for Vision-Language Models
A modular, predictor agnostic, tool-augmented framework that equips a small VLM with geometric tools: 3D object detection, metric depth estimation, and deterministic solvers for distance, size and bearing, matching a scripted pipeline on three of four tasks.
Kai Glantz, Clemens Grange
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