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Geometry-Aware Diffusion Guidance via Curvature-Adaptive Tubular Correction
Gradient-guided diffusion samplers provide flexible priors for inverse problems and conditional generation, but strong guidance can move the sampling trajectory into regions where the learned score is poorly supported. Existing tangent-projection strategies limit first-order departure from an iso-density surface, yet discard potentially useful normal motion and overlook the second-order departure induced by tangent motion on a curved surface. We introduce curvature-adaptive tubular correction (CAT), a training-free plugin that regulates both effects within a shared, noise-dependent geometric b
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- arXiv · AI, language, vision and robotics · 2026-09-18T02:54:46.000Z
First collected: 2026-09-23T14:01:59.594Z. This is not the publication date.