SALAD: Part-Level Latent Diffusion for 3D Shape Generation and Manipulation

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We present a cascaded diffusion model based on a part-level implicit 3D representation. Our model achieves state-of-the-art generation quality and also enables part-level shape editing and manipulation without any additional training in conditional setup. Diffusion models have demonstrated impressive capabilities in data generation as well as zero-shot completion and editing via a guided reverse process. Recent research on 3D diffusion models has focused on improving their generation capabilities with various data representations, while the absence of structural information has limited their capability in completion and editing tasks. We thus propose our novel diffusion model using a part-level implicit representation. To effectively learn diffusion with high-dimensional embedding vectors of parts, we propose a cascaded framework, learning diffusion first on a low-dimensional subspace encoding extrinsic parameters of parts and then on the other high-dimensional subspace encoding intrinsic attributes. In the experiments, we demonstrate the outperformance of our method compared with the previous ones both in generation and part-level completion and manipulation tasks.
Publisher
International Conference on Computer Vision
Issue Date
2023-10
Language
English
Citation

20th IEEE/CVF International Conference on Computer Vision (ICCV)

URI
http://hdl.handle.net/10203/315193
Appears in Collection
CS-Conference Papers(학술회의논문)
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