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About this paper
Zhixin Xu, Hengyu Zhou, Yuan Liu, Wenhan Xue, Hao Pan, Wenping Wang, Bin Wang
The authors add a time-alignment module to 4D Gaussian Splatting that estimates a constant frame shift for each camera, then refines it during reconstruction. They test it on DyNeRF videos subsampled to 15 FPS and offset by up to 10 frames. On Coffee Martini, 4DGaussians PSNR rises from 26.44 to 28.01; this is a synthetic misalignment test, not real-world capture.
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