SurfPhase: 3D Interfacial Dynamics in Two-Phase Flows from Sparse Videos

• URL: http://arxiv.org/abs/2602.11154v1
• Date: Wed, 11 Feb 2026 18:59:55 GMT
• Title: SurfPhase: 3D Interfacial Dynamics in Two-Phase Flows from Sparse Videos
• Abstract summary: We propose SurfPhase, a novel model for reconstructing 3D interfacial dynamics from sparse camera views.<n>We evaluate on a new dataset of high-speed pool boiling videos, demonstrating high-quality view synthesis and velocity estimation from only two camera views.
• Score: 37.70003012602796
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Interfacial dynamics in two-phase flows govern momentum, heat, and mass transfer, yet remain difficult to measure experimentally. Classical techniques face intrinsic limitations near moving interfaces, while existing neural rendering methods target single-phase flows with diffuse boundaries and cannot handle sharp, deformable liquid-vapor interfaces. We propose SurfPhase, a novel model for reconstructing 3D interfacial dynamics from sparse camera views. Our approach integrates dynamic Gaussian surfels with a signed distance function formulation for geometric consistency, and leverages a video diffusion model to synthesize novel-view videos to refine reconstruction from sparse observations. We evaluate on a new dataset of high-speed pool boiling videos, demonstrating high-quality view synthesis and velocity estimation from only two camera views. Project website: https://yuegao.me/SurfPhase.

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