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SMASH: Data-driven Reconstruction of Physically Valid Collisions | | Aron Monszpart
; Nils Thuerey
; Niloy J. Mitra
; | | Date: |
30 Mar 2016 | | Abstract: | Collision sequences are commonly used in games and entertainment to add drama
and excitement. Authoring even two body collisions in real world can be
difficult as one has to get timing and the object trajectories to be correctly
synchronized. After trial-and-error iterations, when objects can actually be
made to collide, then they are difficult to acquire in 3D. In contrast,
synthetically generating plausible collisions is difficult as it requires
adjusting different collision parameters (e.g., object mass ratio, coefficient
of restitution, etc.) and appropriate initial parameters. We present SMASH to
directly ’read off’ appropriate collision parameters simply based on input
video recordings. Specifically, we describe how to use laws of rigid body
collision to regularize the problem of lifting 2D annotated poses to 3D
reconstruction of collision sequences. The reconstructed sequences can then be
modified and combined to easily author novel and plausible collision sequences.
We demonstrate the system on various complex collision sequences. | | Source: | arXiv, 1603.8984 | | Services: | Forum | Review | PDF | Favorites | |
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