KnockGS:interaction-Grounded Calibrationof Physical Gaussian Representations
[Widzenie komputerowe] Autorzy: Chenchen Ge, Hanwen Shen, Bowen Jing i 6 więcej
Physics-integrated 3D Gaussian representations now allow reconstructed deformable objects to be simulated and rendered under explicit material models. Existing pipelines, however, assume that material parameters are known or manually specified, limiting their applicability when these parameters must be inferred from observed object dynamics. We propose KnockGS, an interaction-response PhysicalGS framework that estimates the elasticity and density scales of a 3D Gaussian object from its dynamics under a known applied force. Rather than treating physical simulation only as a forward process, we turn the force-induced response into a calibration signal: temporal response features are xtracted from the observed dynamics, the two material scales are estimated from those features, and the estimate is then frozen and written back into the same simulator so that it can be tested on an interacti…
- Kategoria arxiv
- cs.CV
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- Widzenie komputerowe