ReNoise: Real Image Inversion Through Iterative Noising

ReNoise: Real Image Inversion Through Iterative Noising

21 Mar 2024 | Daniel Garibi, Or Patashnik, Andrey Voynov, Hadar Averbuch-Elor, Daniel Cohen-Or
ReNoise is a novel method for real image inversion through iterative noising, designed to enhance the quality and efficiency of diffusion model-based image manipulation. The method improves reconstruction accuracy without increasing computational complexity by employing an iterative renoising mechanism during the inversion process. This approach refines the approximation of a predicted point along the diffusion trajectory by iteratively applying the pretrained diffusion model and averaging predictions. ReNoise is effective for both recent few-step diffusion models and standard models, offering improved accuracy and speed compared to traditional inversion techniques like DDIM. The method also preserves editability, allowing for text-driven image editing. Through extensive experiments, ReNoise demonstrates superior performance in image reconstruction and inversion speed across various diffusion models and sampling algorithms. The method's effectiveness is further validated by its ability to maintain high-quality reconstructions while enabling prompt-driven edits. Additionally, ReNoise incorporates techniques to enhance editability and correct noise, ensuring robust and accurate inversion results. The method is theoretically supported and empirically verified, showing its effectiveness on a variety of diffusion models and sampling algorithms. ReNoise is also numerically stable and converges to a valid inversion trajectory, making it a versatile and efficient approach for real image inversion and editing.ReNoise is a novel method for real image inversion through iterative noising, designed to enhance the quality and efficiency of diffusion model-based image manipulation. The method improves reconstruction accuracy without increasing computational complexity by employing an iterative renoising mechanism during the inversion process. This approach refines the approximation of a predicted point along the diffusion trajectory by iteratively applying the pretrained diffusion model and averaging predictions. ReNoise is effective for both recent few-step diffusion models and standard models, offering improved accuracy and speed compared to traditional inversion techniques like DDIM. The method also preserves editability, allowing for text-driven image editing. Through extensive experiments, ReNoise demonstrates superior performance in image reconstruction and inversion speed across various diffusion models and sampling algorithms. The method's effectiveness is further validated by its ability to maintain high-quality reconstructions while enabling prompt-driven edits. Additionally, ReNoise incorporates techniques to enhance editability and correct noise, ensuring robust and accurate inversion results. The method is theoretically supported and empirically verified, showing its effectiveness on a variety of diffusion models and sampling algorithms. ReNoise is also numerically stable and converges to a valid inversion trajectory, making it a versatile and efficient approach for real image inversion and editing.
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