Learning Image Fractals Using Chaotic Differentiable Point Splatting

Adarsh Djeacoumar
MPI Informatik
Felix Mujkanovic
MPI Informatik
Hans-Peter Seidel
MPI Informatik
Thomas Leimkühler
MPI Informatik
Computer Graphics Forum (Proceedings of Eurographics 2025)
We introduce a novel method to recover a fractal description from an image containing a self-similar shape. Our hybrid optimization achieves state-of-the-art fractal inversion, enabling the synthesis of intricate details at any desired scale -- illustrated here with 64x zoom-ins.

Abstract

Fractal geometry, defined by self-similar patterns across scales, is crucial for understanding natural structures. This work addresses the fractal inverse problem, which involves extracting fractal codes from images to explain these patterns and synthesize them at arbitrary finer scales. We introduce a novel algorithm that optimizes Iterated Function System parameters using a custom fractal generator combined with differentiable point splatting. By integrating both stochastic and gradient-based optimization techniques, our approach effectively navigates the complex energy landscapes typical of fractal inversion, ensuring robust performance and the ability to escape local minima. We demonstrate the method’s effectiveness through comparisons with various fractal inversion techniques, highlighting its ability to recover high-quality fractal codes and perform extensive zoom-ins to reveal intricate patterns from just a single image.




BibTeX

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