无需训练，几分钟内精准编辑3D模型，不改无关区域。
PrEditor3D: Fast and Precise 3D Shape Editing
- 用四视图图像同步编辑，结合文本提示和粗略遮罩引导。
- 通过3D分割精确定位修改区域，确保仅在目标区域变化。
- 适合需要快速高质量3D编辑的设计师与工程师使用。
我们提出一种无需训练的3D编辑方法，可在几分钟内完成单个形状的编辑。编辑后的3D网格与用户提示高度一致，且未意图修改的区域保持不变。首先将3D物体投影至四视图图像，结合用户提供的文本提示和粗略掩码进行同步多视图图像编辑。然而，由于从3D到2D的投影导致目标区域模糊。为此，我们设计了一个3D分割管道以在三维空间中检测编辑区域，并采用融合算法无缝整合编辑后的3D区域与原始输入。大量实验表明，该方法优于先前方法，在保持非编辑区域不变的前提下实现快速、高质量的3D编辑。
原文摘要 · Abstract (English)
We propose a training-free approach to 3D editing that enables the editing of a single shape within a few minutes. The edited 3D mesh aligns well with the prompts, and remains identical for regions that are not intended to be altered. To this end, we first project the 3D object onto 4-view images and perform synchronized multi-view image editing along with user-guided text prompts and user-provided rough masks. However, the targeted regions to be edited are ambiguous due to projection from 3D to 2D. To ensure precise editing only in intended regions, we develop a 3D segmentation pipeline that detects edited areas in 3D space, followed by a merging algorithm to seamlessly integrate edited 3D regions with the original input. Extensive experiments demonstrate the superiority of our method over previous approaches, enabling fast, high-quality editing while preserving unintended regions.
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