Technical Report of RoboSpatial Challenge at CVPR 2026: Selective Reasoning Activation and Reference-Frame Disambiguation for Embodied Spatial Reasoning

Researchers introduced RoboSpatialBrain to address persistent limitations in how vision-language models handle spatial reasoning for embodied robotic tasks. The submission, presented at the CVPR 2026 RoboSpatial Challenge, focuses on improving how machines process reference-frame disambiguation and selective reasoning. This development targets the gap between general perceptual abilities and the specific spatial navigation requirements necessary for effective robot interaction.