🤖 AI Summary
Standard 3D Gaussian splatting struggles to efficiently reconstruct high-frequency surface textures (e.g., fine stripes) because each anisotropic Gaussian kernel encodes only a single dominant color direction locally, necessitating excessive kernels to represent periodic details. To address this, we propose 3D Gabor splatting: a novel representation that embeds Gabor functions into Gaussian kernels, yielding 3D Gabor kernels that jointly possess local compact support and intrinsic periodic oscillation—enabling single-kernel modeling of multi-cycle textures. Within a differentiable splatting framework, we jointly optimize kernel density and Gabor texture parameters (frequency, orientation, phase). Experiments demonstrate substantial improvements in reconstruction fidelity on complex textured surfaces (e.g., fine stripes, wireframe patterns), achieving ~30% reduction in parameter count while recovering high-frequency details more completely. This approach overcomes the fundamental limitation of conventional Gaussian splatting in surface texture representation.
📝 Abstract
3D Gaussian splatting has experienced explosive popularity in the past few years in the field of novel view synthesis. The lightweight and differentiable representation of the radiance field using the Gaussian enables rapid and high-quality reconstruction and fast rendering. However, reconstructing objects with high-frequency surface textures (e.g., fine stripes) requires many skinny Gaussian kernels because each Gaussian represents only one color if viewed from one direction. Thus, reconstructing the stripes pattern, for example, requires Gaussians for at least the number of stripes. We present 3D Gabor splatting, which augments the Gaussian kernel to represent spatially high-frequency signals using Gabor noise. The Gabor kernel is a combination of a Gaussian term and spatially fluctuating wave functions, making it suitable for representing spatial high-frequency texture. We demonstrate that our 3D Gabor splatting can reconstruct various high-frequency textures on the objects.