Articulate That Object Part (ATOP): 3D Part Articulation from Text and Motion Personalization

• URL: http://arxiv.org/abs/2502.07278v1
• Date: Tue, 11 Feb 2025 05:47:16 GMT
• Title: Articulate That Object Part (ATOP): 3D Part Articulation from Text and Motion Personalization
• Authors: Aditya Vora, Sauradip Nag, Hao Zhang,
• Abstract summary: ATOP (Articulate That Object Part) is a novel method based on motion personalization to articulate a 3D object. Text input allows us to tap into the power of modern-day video diffusion to generate plausible motion samples. In turn, the input 3D object provides image prompting to personalize the generated video to that very object we wish to articulate.
• Score: 9.231848716070257
• License:
• Abstract: We present ATOP (Articulate That Object Part), a novel method based on motion personalization to articulate a 3D object with respect to a part and its motion as prescribed in a text prompt. Specifically, the text input allows us to tap into the power of modern-day video diffusion to generate plausible motion samples for the right object category and part. In turn, the input 3D object provides image prompting to personalize the generated video to that very object we wish to articulate. Our method starts with a few-shot finetuning for category-specific motion generation, a key first step to compensate for the lack of articulation awareness by current video diffusion models. For this, we finetune a pre-trained multi-view image generation model for controllable multi-view video generation, using a small collection of video samples obtained for the target object category. This is followed by motion video personalization that is realized by multi-view rendered images of the target 3D object. At last, we transfer the personalized video motion to the target 3D object via differentiable rendering to optimize part motion parameters by a score distillation sampling loss. We show that our method is capable of generating realistic motion videos and predict 3D motion parameters in a more accurate and generalizable way, compared to prior works.

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