OSCAR: Occupancy-based Shape Completion via Acoustic Neural Implicit Representations
Accurate 3D reconstruction of vertebral anatomy from ultrasound is important for guiding minimally invasive spine interventions, but it remains challenging due to acoustic shadowing and view-dependent signal variations. We propose an occupancy-based shape completion method that reconstructs complete 3D anatomical geometry from partial ultrasound observations. Crucially for intra-operative applications, our approach extracts the anatomical surface directly from the image, avoiding the need for anatomical labels during inference. This label-free completion relies on a coupled latent space representing both the image appearance and the underlying anatomical shape. By leveraging a Neural Impl...
| Authors | Magdalena Wysocki, Kadir Burak Buldu, Miruna-Alexandra Gafencu et al. |
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| Primary category | cs.CV |
| Published | 9 March 2026 |
| Last updated at source | 1 July 2026 |
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