Customize Consent Preferences

We use cookies to help you navigate efficiently and perform certain functions. You will find detailed information about all cookies under each consent category below.

The cookies that are categorized as "Necessary" are stored on your browser as they are essential for enabling the basic functionalities of the site. ... 

Always Active

Necessary cookies are required to enable the basic features of this site, such as providing secure log-in or adjusting your consent preferences. These cookies do not store any personally identifiable data.

No cookies to display.

Functional cookies help perform certain functionalities like sharing the content of the website on social media platforms, collecting feedback, and other third-party features.

No cookies to display.

Analytical cookies are used to understand how visitors interact with the website. These cookies help provide information on metrics such as the number of visitors, bounce rate, traffic source, etc.

No cookies to display.

Performance cookies are used to understand and analyze the key performance indexes of the website which helps in delivering a better user experience for the visitors.

No cookies to display.

Advertisement cookies are used to provide visitors with customized advertisements based on the pages you visited previously and to analyze the effectiveness of the ad campaigns.

No cookies to display.

0

新闻摘要:

字节跳动的研究团队近日推出了一项创新技术——SDXL-Lightning,这是一种基于扩散模型的文本到图像生成工具,旨在打破传统扩散模型在生成速度和计算成本上的限制。SDXL-Lightning利用渐进式和对抗式蒸馏方法,能够快速生成高分辨率的图像,为AI图像创作开辟了新的可能。

SDXL-Lightning:快速高质量图像生成

SDXL-Lightning基于SDXL(Stable Diffusion XL)架构,能够在一步或少数步骤内生成1024像素分辨率的高质量图像。该模型通过优化算法,成功实现了在保持图像质量的同时显著提高生成速度,解决了传统模型的瓶颈问题。

技术亮点:渐进式与对抗式蒸馏

  • 渐进式蒸馏:通过训练学生模型预测数据流的未来位置,而非直接预测当前位置的梯度,SDXL-Lightning能够在生成过程中跳过多个步骤,从而提升速度。

  • 对抗式蒸馏:结合对抗性训练,利用鉴别器网络提升生成图像的真实感和质量,使生成的图像更接近于真实世界。

开源与兼容性

SDXL-Lightning的模型和权重已开源,包括LoRA版本和完整的UNet权重,便于研究人员和开发者进一步研究和应用。此外,模型与现有的LoRA模块和ControlNet插件兼容,可无缝集成到现有的图像生成系统中,提供更高的创作灵活性。

技术原理简述

  • 扩散模型:扩散模型通过模拟数据分布到噪声分布的连续过程来生成新图像,通常涉及多个推理步骤。

  • 对抗式蒸馏:鉴别器网络的加入帮助学生模型生成更逼真的图像,以“欺骗”鉴别器。

  • 鉴别器设计:采用预训练扩散模型的U-Net编码器作为鉴别器基础,增强了鉴别器的泛化能力。

结论

SDXL-Lightning的发布标志着文本到图像生成领域的重大进步,其高效性能和开源特性将促进AI图像生成技术的进一步发展,为创作者和开发者带来更为便捷和高效的工具。随着这些技术的成熟和普及,我们期待看到更多创新应用在艺术、设计、媒体等领域涌现。

【source】https://ai-bot.cn/sdxl-lightning/

Views: 0

0

发表回复

您的邮箱地址不会被公开。 必填项已用 * 标注