UltraDiff: Differentiable Ray Tracing in Ultrasound for Shape Optimization
Physically-based differentiable rendering enables gradient-based optimization of scene parameters by matching rendered images to measurements, but has so far mainly focused on light transport. We extend this paradigm to medical ultrasound, where image formation resembles transient rendering: echoes are binned by time-of-flight rather than projected onto an image plane. We present UltraDiff, a modular framework for differentiable ultrasound ray tracing. UltraDiff formulates ultrasound image formation as a path-space integral, gated by travel time between the transducer and tissue interfaces, and derives a Monte Carlo estimator of both the forward model and its gradients with respect to sce...
| Authors | Felix Duelmer, Magdalena Wysocki, Nassir Navab et al. |
|---|---|
| Primary category | cs.GR |
| Published | 6 October 2026 |
| Last updated at source | 6 October 2026 |
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