ThermalGaussian: Thermal 3D Gaussian Splatting

a) RGB GT (b) Thermal GT (c) ThermoNeRF (d) 3DGS (e) Ours (f) Ours w/ MR Figure 1: Compared to NeRF-based methods (Hassan et al., 2024) and methods that directly use thermal images for training 3DGS, our approach not only improves the thermal image rendering quality but also significantly reduces the model's storage through multimodal regularization (MR).