AI RESEARCH
A 3D Cross-modal Keypoint Descriptor for MR-US Matching and Registration
arXiv CS.CV
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ArXi:2507.18551v2 Announce Type: replace Intraoperative registration of real-time ultrasound (iUS) to preoperative Magnetic Resonance Imaging (MRI) remains an unsolved problem due to severe modality-specific differences in appearance, resolution, and field-of-view. To address this, we propose a novel 3D cross-modal keypoint descriptor for MRI-iUS matching and registration. Our approach employs a patient-specific matching-by-synthesis approach, generating synthetic iUS volumes from preoperative MRI. This enables supervised contrastive.