How Robot Dogs See the Unseeable

• URL: http://arxiv.org/abs/2511.16262v1
• Date: Thu, 20 Nov 2025 11:41:48 GMT
• Title: How Robot Dogs See the Unseeable
• Authors: Oliver Bimber, Karl Dietrich von Ellenrieder, Michael Haller, Rakesh John Amala Arokia Nathan, Gianni Lunardi, Marco Camurri, Mohamed Youssef, Santos Miguel Orozco Soto, Jeremy E. Niven,
• Abstract summary: Peering is a side-to-side motion used by animals to estimate distance through motion parallax.<n> Conventional robot cameras render both foreground obstacles and background objects in sharp focus, causing occluders to obscure critical scene information.<n>This work establishes a formal connection between animal peering and synthetic aperture sensing from optical imaging.
• Score: 5.462667251616583
• License: http://creativecommons.org/licenses/by-nc-sa/4.0/
• Abstract: Peering, a side-to-side motion used by animals to estimate distance through motion parallax, offers a powerful bio-inspired strategy to overcome a fundamental limitation in robotic vision: partial occlusion. Conventional robot cameras, with their small apertures and large depth of field, render both foreground obstacles and background objects in sharp focus, causing occluders to obscure critical scene information. This work establishes a formal connection between animal peering and synthetic aperture (SA) sensing from optical imaging. By having a robot execute a peering motion, its camera describes a wide synthetic aperture. Computational integration of the captured images synthesizes an image with an extremely shallow depth of field, effectively blurring out occluding elements while bringing the background into sharp focus. This efficient, wavelength-independent technique enables real-time, high-resolution perception across various spectral bands. We demonstrate that this approach not only restores basic scene understanding but also empowers advanced visual reasoning in large multimodal models, which fail with conventionally occluded imagery. Unlike feature-dependent multi-view 3D vision methods or active sensors like LiDAR, SA sensing via peering is robust to occlusion, computationally efficient, and immediately deployable on any mobile robot. This research bridges animal behavior and robotics, suggesting that peering motions for synthetic aperture sensing are a key to advanced scene understanding in complex, cluttered environments.

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