[Submitted on 24 Sep 2026]
Title:TinyCVIO: A Constellation-Aided Visual-Inertial Odometry System for Nanodrones
View a PDF of the paper titled TinyCVIO: A Constellation-Aided Visual-Inertial Odometry System for Nanodrones, by Derin Ozturk and 3 other authors
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Abstract:Nanodrones require accurate, real-time state estimation under severe sensing and computational constraints. We present TinyCVIO, a visual-inertial odometry system that co-designs miniature sensing, visual processing, and estimation for a commodity dual-core microcontroller with 520 kB SRAM. Lightweight LED constellations provide known geometry without surveyed positions or yaw angles, assuming placement on a common level plane. A streaming visual frontend tracks LED observations from a millimeter-scale camera at 29.2 FPS, while a rigid-board measurement model retains inter-LED constraints and streaming QR bounds estimation workspace for a fixed filter-state size. Across 19 hand-held hardware-in-the-loop datasets, the rigid-board model reduces mean absolute trajectory error by 27% relative to planar points. The complete system runs onboard a Crazyflie across nine flights at three speeds, achieving 3.5-3.7 cm mean absolute trajectory error and 0.50-0.60% relative pose error over 10 m segments, with mean estimate latency of 15.7-16.3 ms.
Comments: 9 pages, 6 figures, 4 tables. Video: this https URL
Subjects:
Robotics (cs.RO)
Cite as: arXiv:2609.30358 [cs.RO]
(or arXiv:2609.30358v1 [cs.RO] for this version)
https://doi.org/10.48550/arXiv.2609.30358
arXiv-issued DOI via DataCite (pending registration)
Submission history
From: Derin Ozturk [view email] [v1] Thu, 24 Sep 2026 17:51:58 UTC (2,890 KB)
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