PDF] Optical Mouse: 3D Mouse Pose From Single-View Video

The inferred poses are accurate enough to estimate stride length even when the feet are mostly occluded, and could be applied as part of a continuous monitoring system to non-invasively measure animal health. We present a method to infer the 3D pose of mice, including the limbs and feet, from monocular videos. Many human clinical conditions and their corresponding animal models result in abnormal motion, and accurately measuring 3D motion at scale offers insights into health. The 3D poses improve classification of health-related attributes over 2D representations. The inferred poses are accurate enough to estimate stride length even when the feet are mostly occluded. This method could be applied as part of a continuous monitoring system to non-invasively measure animal health.

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