Despite significant strides in the field of 3D scene editing, current methods encounter substantial challenge, particularly in preserving 3D consistency in multi-view editing process. To tackle this challenge, we propose a progressive 3D editing strategy that ensures multi-view consistency via a Trajectory-Anchored Scheme (TAS) with a dual-branch editing mechanism. Specifically, TAS facilitates a tightly coupled iterative process between 2D view editing and 3D updating, preventing error accumulation yielded from text-to-image process. Additionally, we explore the relationship between optimization-based methods and reconstruction-based methods, offering a unified perspective for selecting superior design choice, supporting the rationale behind the designed TAS. We further present a tuning-free View-Consistent Attention Control (VCAC) module that leverages cross-view semantic and geometric reference from the source branch to yield aligned views from the target branch during the editing of 2D views. To validate the effectiveness of our method, we analyze 2D examples to demonstrate the improved consistency with the VCAC module. Further extensive quantitative and qualitative results in text-guided 3D scene editing indicate that our method achieves superior editing quality compared to state-of-the-art methods. We will make the complete codebase publicly available following the conclusion of the double-blind review process.
尽管在3D场景编辑领域取得了显著进展，但目前的方法在保持多视角编辑过程中的3D一致性方面仍面临重大挑战。为了解决这一问题，我们提出了一种渐进式的3D编辑策略，通过轨迹锚定方案（TAS）和双分支编辑机制确保多视角一致性。具体来说，TAS促进了2D视图编辑和3D更新之间紧密耦合的迭代过程，防止了由文本到图像处理过程中产生的误差累积。此外，我们探索了基于优化的方法和基于重建的方法之间的关系，为选择更优设计提供了统一的视角，支持设计TAS的理论基础。我们进一步提出了一个无需调整的视图一致注意力控制（VCAC）模块，利用源分支的跨视图语义和几何参考，在编辑2D视图时从目标分支生成对齐的视图。为验证我们方法的有效性，我们分析了2D示例，展示了VCAC模块在提升一致性方面的效果。进一步的定量和定性结果在文本引导的3D场景编辑中表明，我们的方法在编辑质量上优于现有方法。