AI RESEARCH
R2AoP: Reliable and Robust Angle of Progression Estimation from Intrapartum Ultrasound
arXiv CS.CV
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ArXi:2605.21099v1 Announce Type: new Accurate estimation of the Angle of Progression (AoP) from intrapartum transperineal ultrasound is critical for objective assessment of labor progression, yet remains highly sensitive to imaging noise, boundary ambiguities, and the geometric amplification of local segmentation errors. We propose R2AoP, a reliable and robust AoP estimation framework that integrates structurally informed segmentation and confidence-guided geometric modeling to achieve stable and reproducible measurements.