Text-To-Image generative model
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DreamFusion Features DreamFusion is a product that uses a text-to-image generative model called Imagen to optimize a 3D scene. 该产品具有评分蒸馏采样功能 (SDS), a way to generate samples from a diffusion model by optimizing a loss function. SDS allows for the optimization of samples in an arbitrary parameter space, such as a 3D space. The product uses a 3D scene parameterization similar to Neural Radiance Fields to define this differentiable mapping. DreamFusion adds additional regularizers and optimization strategies to improve geometry, resulting in coherent, high-quality normals, surface geometry and depth, and relightable NeRFs with a Lambertian shading model. DreamFusion 的使用案例涉及为各种应用优化 3D 场景, 例如电子游戏, 虚拟现实体验, 以及电影制作.