Abstract
When using diffusion models to target image restoration problems, diffusion inversion is typically employed to retain relevant image information from the degraded images. Instead of inverting back to the initial time step (i.e., T), many methods invert to a pre-determined intermediate time step, in order to better preserve information from degraded source images. However, a pre-determined time step for inversion is not ideal for reconstruction, as a severely degraded image requires an earlier starting time step than a mildly degraded one. In addition, DDIM-based models corrupt the original signal by adding Gaussian noise, which can be mismatched to the nature of blur-like degradations, such as blur, haze, and low-light. To address these problems, we propose two solutions: (1) we adopt an alternative diffusion process, called the Inverse Heat Dissipation Model, that diffuses the input image by gradually blurring a data point (2) we propose to implement a time predictor to estimate the starting time step for the inversion, with the model learning to adapt to the degradation severity. Extensive experiments on standard benchmarks show that our method achieves state-of-the-art performance in both quantitative and qualitative evaluations, with excellent generalization to many restoration tasks.
Keywords
Subject
Publication details
- Journal
- Not available
- Open access
- Green open access
Cite this article
APA 7
Kiet, C. D. X., & Cham, T. J. (2026). Dynamic Time Step Prediction in Inverse Heat Dissipation for Blur-Like Image Restoration Tasks. https://omanscience.com/en/articles/dynamic-time-step-prediction-in-inverse-heat-dissipation-for-blur-like-image-restoration-tasks
MLA 9
Kiet, Cap Dang Xuan, and Tat-Jen Cham. "Dynamic Time Step Prediction in Inverse Heat Dissipation for Blur-Like Image Restoration Tasks." https://omanscience.com/en/articles/dynamic-time-step-prediction-in-inverse-heat-dissipation-for-blur-like-image-restoration-tasks.
Chicago (author–date)
Kiet, Cap Dang Xuan, and Tat-Jen Cham. 2026. "Dynamic Time Step Prediction in Inverse Heat Dissipation for Blur-Like Image Restoration Tasks." https://omanscience.com/en/articles/dynamic-time-step-prediction-in-inverse-heat-dissipation-for-blur-like-image-restoration-tasks.
Harvard
Kiet, C. D. X. and Cham, T. J. (2026) 'Dynamic Time Step Prediction in Inverse Heat Dissipation for Blur-Like Image Restoration Tasks', Available at: https://omanscience.com/en/articles/dynamic-time-step-prediction-in-inverse-heat-dissipation-for-blur-like-image-restoration-tasks.
Vancouver
Kiet CDX, Cham TJ. Dynamic Time Step Prediction in Inverse Heat Dissipation for Blur-Like Image Restoration Tasks. https://omanscience.com/en/articles/dynamic-time-step-prediction-in-inverse-heat-dissipation-for-blur-like-image-restoration-tasks
IEEE
C. D. X. Kiet, and T. J. Cham, "Dynamic Time Step Prediction in Inverse Heat Dissipation for Blur-Like Image Restoration Tasks," https://omanscience.com/en/articles/dynamic-time-step-prediction-in-inverse-heat-dissipation-for-blur-like-image-restoration-tasks.