Summary of Dnf: Unconditional 4d Generation with Dictionary-based Neural Fields, by Xinyi Zhang et al.
DNF: Unconditional 4D Generation with Dictionary-based Neural Fields
by Xinyi Zhang, Naiqi Li, Angela Dai
First submitted to arxiv on: 6 Dec 2024
Categories
- Main: Computer Vision and Pattern Recognition (cs.CV)
- Secondary: Artificial Intelligence (cs.AI)
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| Summary difficulty | Written by | Summary |
|---|---|---|
| High | Paper authors | High Difficulty Summary Read the original abstract here |
| Medium | GrooveSquid.com (original content) | Medium Difficulty Summary In this paper, researchers aim to develop a new approach for unconditional generative modeling of deformable shapes over time, also known as 4D generative modeling. The existing methods have achieved remarkable success in generating shapes but struggle with capturing object deformations. To overcome this challenge, the authors propose DNF (Deformable Neural Fields), a novel representation that efficiently models shape and motion while preserving high-fidelity details. By disentangling 4D motion from shape using dictionary learning, the model learns latent spaces for shape and motion, allowing it to capture both shape-specific detail and global shared information. This is achieved through a combination of neural fields and transformer-based diffusion modeling. The proposed method demonstrates a balance between fidelity, contiguity, and compression, making it suitable for generating high-fidelity 4D animations. |
| Low | GrooveSquid.com (original content) | Low Difficulty Summary This paper is about creating computer-generated animations that can change shape over time. Right now, we’re good at making shapes but struggle to make them move and change in a realistic way. The authors are proposing a new approach called DNF that can do just that. They use special techniques to separate the movement from the shape of an object, allowing them to create more realistic animations. This could be useful for things like video games or movies where characters need to move and change shape in believable ways. |
Keywords
» Artificial intelligence » Transformer
