Heat Kernel Textures: the Geodesic Gaussians That Do Not Splat

• URL: http://arxiv.org/abs/2609.07557v1
• Date: Mon, 07 Sep 2026 14:39:55 GMT
• Title: Heat Kernel Textures: the Geodesic Gaussians That Do Not Splat
• Abstract summary: Heat Kernel Textures (HKTex) eliminate UV unwrapping as well as their persistent issues of wasted UV space, seams, distortions, synthesis-duplication, and varying resolution.<n>Our representation is also fully integrated with a physically based synthesis and code can be optimised either from existing textures or multi-view images.
• Score: 51.087279935749905
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: 3D Gaussian Splatting has recently revolutionised novel view synthesis as well as many other 3D vision methods and applications. Drawing inspiration from this representation, we now rethink textures to overcome the main issues of UV mapping while considerably lowering their memory footprint. Heat Kernel Textures (HKTex) eliminate UV unwrapping as well as their persistent issues of wasted UV space, seams, distortions, vertex-duplication, and varying resolution. Grounded in discrete Riemannian geometry and intrinsically defined on any manifold surface discretised as a triangular mesh, HKTex uses anisotropic heat kernels as geodesic equivalents to Gaussians. Like our kernels, also the optimisation of their position and the adaptive densification strategies were redefined to operate on the surface of the object to be textureised. Our novel representation is also fully integrated with a physically based renderer and can be optimised either from existing textures or multi-view images. Our project page and code are available at circle-group.github.io/research/HeatKernelTextures.

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