一个绕过这个问题的折中方法是在训练过程中在 t = T 处以纯噪声ϵ作为模型输入进行硬编码。这样 模型就被训练为期望在t = T 时接收纯噪声作为输 入,而在推断过程中我们仍然使用Equation(3)中旧的 ¯ α 时间表以避免奇异性。这对于现有软件生态系统中 的采样过程变更最小。SDXL-Turbo也采用了这种 方法。
Yang Song, Prafulla Dhariwal, Mark Chen, Ilya Sutskever 一步生成的扩散模型:Consistency Models SDXL Turbo、LCM相继发布,AI画图进入实时生成时代:字打多快,出图就有多快 Stable Diffusion 3震撼发布,采用Sora同源技术,文字终于不乱码了 Scalable High-Resolution Pixel-Space Image Synthesis with Hourglass Diffusio...
Stable Diffusion作为一种先进的扩散模型,在计算机视觉和图像处理领域取得了显著的成就。该模型通过连续时间扩散过程模拟数据的生成,从而生成高质量的图像。在Stable Diffusion中,采样器扮演着至关重要的角色,它们负责从扩散过程中提取出最终的图像。本文将重点介绍两个常用的采样器:DPM++ 3M SDE Karras和SDXL Refiner,并...
一个绕过这个问题的折中方法是在训练过程中在 t = T 处以纯噪声ϵ作为模型输入进行硬编码。这样 模型就被训练为期望在t = T 时接收纯噪声作为输 入,而在推断过程中我们仍然使用Equation(3)中旧的 ¯ α 时间表以避免奇异性。这对于现有软件生态系统中 的采样过程变更最小。SDXL-Turbo也采用了这种 方法。
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