We introduce MVControl, a novel neural network architecture that enhances
existing pre-trained multi-view 2D diffusion models by incorporating additional
input conditions, e.g. edge maps. Our approach enables the generation of
controllable multi-view images and view-consistent 3D content. To achieve
controllable multi-view image generation, we leverage MVDream as our base
model, and train a new neural network module as additional plugin for
end-to-end task-specific condition learning. To precisely control the shapes
and views of generated images, we innovatively propose a new conditioning
mechanism that predicts an embedding encapsulating the input spatial and view
conditions, which is then injected to the network globally. Once MVControl is
trained, score-distillation (SDS) loss based optimization can be performed to
generate 3D content, in which process we propose to use a hybrid diffusion
prior. The hybrid prior relies on a pre-trained Stable-Diffusion network and
our trained MVControl for additional guidance. Extensive experiments
demonstrate that our method achieves robust generalization and enables the
controllable generation of high-quality 3D content.

通过引入 MVControl 神经网络架构，我们成功地提出了一种能够增强现有预训练的多视角二维扩散模型并结合额外输入条件（如边缘图）的方法。通过我们的方法，实现了可控的多视角图像生成和视角一致的三维内容创作。