arXiv Computer Vision By Koya Sakamoto, Daichi Azuma, Shuhei Kurita, Naoya Chiba, Yusuke Iwasawa, Yutaka Matsuo, Taiki Miyanishi

Rendering-Free Lookahead for Question-Guided Active Vision

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The paper introduces Rendering-Free Lookahead (RFL), a method for active robot vision that selects camera motions to reveal information needed for viewpoint-dependent question answering. RFL predicts future answerability—how well a view can answer a question—using a student model trained via distillation from a privileged teacher that renders future views with 3D Gaussian Splatting. In deployment, RFL chooses camera motions without rendering, achieving a 43% improvement in mean judge score over a baseline on 377 unseen test episodes.

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