4D-GSW: Kinematic-Aware Spatio-Temporal Consistent Watermarking for 4D Gaussian Splatting
4D-GSW is a kinematic-aware watermarking framework for 4D Gaussian Splatting that embeds copyright information while maintaining spatio-temporal consistency. It addresses artifacts like 'FVD collapse' by using SpatioTemporal Curvature (STC) to adaptively gate watermark gradients, ensuring the embedded data respects the underlying physical motion of objects.