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arXiv · 2606.13028

Comparing Commercial Depth Sensor Accuracy for Medical Applications

Pit Henrich·Maximilian Weiherer·Franziska Hansen·Bernhard Egger·Franziska Mathis-Ullrich
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Abstract

Depth estimation has numerous medical and surgical applications. We benchmark four depth sensors on a porcine bone specimen, a porcine belly specimen, and a silicone kidney phantom using stylus-sampled references. These objects contain several real-world challenges, including homogeneous surfaces, specular surfaces, and subsurface scattering. The comparison includes stereo, structured-light, and time-of-flight sensors at a distance of approximately 50 cm. Specifically, the Intel RealSense D405 (Intel RealSense, United States), PMD Flexx2 (pmdtechnologies, Germany), Stereolabs ZED 2i (Stereolabs, France), and Zivid 2M+ 60 (Zivid, Norway) are compared. The Zivid 2M+ 60 performed best across all objects and metrics considered in this work. The ZED ranked second for real tissue, but last on the phantom.

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Pit Henrich, Maximilian Weiherer, Franziska Hansen, Bernhard Egger, Franziska Mathis-Ullrich. 2026-06-11. Comparing Commercial Depth Sensor Accuracy for Medical Applications. https://arxiv.org/abs/2606.13028

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