LGM: Large Multi-View Gaussian Model for High-Resolution 3D Content
  Creation
Jiaxiang Tang Zhaoxi Chen Xiaokang Chen Tengfei Wang Gang Zeng Ziwei Liu
3D content creation has achieved significant progress in terms of both
quality and speed. Although current feed-forward models can produce 3D objects
in seconds, their resolution is constrained by the intensive computation
required during training. In this paper, we introduce Large Multi-View Gaussian
Model (LGM), a novel framework designed to generate high-resolution 3D models
from text prompts or single-view images. Our key insights are two-fold: 1) 3D
Representation: We propose multi-view Gaussian features as an efficient yet
powerful representation, which can then be fused together for differentiable
rendering. 2) 3D Backbone: We present an asymmetric U-Net as a high-throughput
backbone operating on multi-view images, which can be produced from text or
single-view image input by leveraging multi-view diffusion models. Extensive
experiments demonstrate the high fidelity and efficiency of our approach.
Notably, we maintain the fast speed to generate 3D objects within 5 seconds
while boosting the training resolution to 512, thereby achieving
high-resolution 3D content generation.