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arXiv · 2402.16936

Disentangled 3D Scene Generation with Layout Learning

Dave Epstein·Ben Poole·Ben Mildenhall·Alexei A. Efros·Aleksander Holynski
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Abstract

We introduce a method to generate 3D scenes that are disentangled into their component objects. This disentanglement is unsupervised, relying only on the knowledge of a large pretrained text-to-image model. Our key insight is that objects can be discovered by finding parts of a 3D scene that, when rearranged spatially, still produce valid configurations of the same scene. Concretely, our method jointly optimizes multiple NeRFs from scratch - each representing its own object - along with a set of layouts that composite these objects into scenes. We then encourage these composited scenes to be in-distribution according to the image generator. We show that despite its simplicity, our approach successfully generates 3D scenes decomposed into individual objects, enabling new capabilities in text-to-3D content creation. For results and an interactive demo, see our project page at https://dave.ml/layoutlearning/

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Dave Epstein, Ben Poole, Ben Mildenhall, Alexei A. Efros, Aleksander Holynski. 2024-02-26. Disentangled 3D Scene Generation with Layout Learning. https://arxiv.org/abs/2402.16936

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