OMGSR: You Only Need One Mid-timestep Guidance for Real-World Image Super-Resolution

arXiv — cs.CVTuesday, November 25, 2025 at 5:00:00 AM
  • A recent study introduces a novel approach to Real-World Image Super-Resolution (Real-ISR) using Denoising Diffusion Probabilistic Models (DDPMs), proposing a mid-timestep guidance for optimal latent representation injection. This method leverages the Signal-to-Noise Ratio (SNR) to enhance image quality by refining the latent representations through a Latent Representation Refinement (LRR) loss, improving the overall performance of image super-resolution tasks.
  • This development is significant as it addresses the limitations of traditional one-step Real-ISR methods, which typically inject low-quality image representations at the start or end of the DDPM scheduler. By optimizing the injection point, the proposed method aims to achieve better image restoration results, potentially setting a new standard in the field of image processing and enhancing applications in various industries, including photography and digital media.
  • The introduction of mid-timestep guidance aligns with ongoing advancements in diffusion models and their applications across different domains, including audio-driven animation and image generation. The integration of techniques like Latent Representation Refinement and the use of LoRA technology reflect a broader trend towards improving model efficiency and adaptability, highlighting the importance of innovative approaches in tackling complex image restoration challenges.
— via World Pulse Now AI Editorial System

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