CaricatureGS: Exaggerating 3D Gaussian Splatting Faces With Gaussian Curvature

• URL: http://arxiv.org/abs/2601.03319v1
• Date: Tue, 06 Jan 2026 13:56:28 GMT
• Title: CaricatureGS: Exaggerating 3D Gaussian Splatting Faces With Gaussian Curvature
• Authors: Eldad Matmon, Amit Bracha, Noam Rotstein, Ron Kimmel,
• Abstract summary: A controllable and controllable 3D caricaturization framework for faces is introduced.<n>We resort to 3D Gaussian Splatting (3DGS), which has recently been shown to produce realistic free-viewpoint avatars.
• Score: 13.47263744740423
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: A photorealistic and controllable 3D caricaturization framework for faces is introduced. We start with an intrinsic Gaussian curvature-based surface exaggeration technique, which, when coupled with texture, tends to produce over-smoothed renders. To address this, we resort to 3D Gaussian Splatting (3DGS), which has recently been shown to produce realistic free-viewpoint avatars. Given a multiview sequence, we extract a FLAME mesh, solve a curvature-weighted Poisson equation, and obtain its exaggerated form. However, directly deforming the Gaussians yields poor results, necessitating the synthesis of pseudo-ground-truth caricature images by warping each frame to its exaggerated 2D representation using local affine transformations. We then devise a training scheme that alternates real and synthesized supervision, enabling a single Gaussian collection to represent both natural and exaggerated avatars. This scheme improves fidelity, supports local edits, and allows continuous control over the intensity of the caricature. In order to achieve real-time deformations, an efficient interpolation between the original and exaggerated surfaces is introduced. We further analyze and show that it has a bounded deviation from closed-form solutions. In both quantitative and qualitative evaluations, our results outperform prior work, delivering photorealistic, geometry-controlled caricature avatars.

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