SOGS: Second-Order Anchor for Advanced 3D Gaussian Splatting

Figure 1. The proposed SOGS can render high-quality textures and geometries and reduce model size simultaneously. The illustrations in (a) and (b) show Rendered Images and Gradient Maps which are produced by Scaffold-GS [25] and SOGS, respectively, for the samples 'Stump' and 'Room' from Mip-NeRF360 [2]. The Gradient Maps are extracted with the Sobel operator which highlight the texture and geometry of imaged scenes.