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Mixture-of-Experts-based (MoE-based) diffusion models demonstrate remarkable scalability in high-fidelity image generation, yet their reliance on expert parallelism introduces critical communication bottlenecks. State-of-the-art methods…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-12-01 Jiajun Luo , Lizhuo Luo , Jianru Xu , Jiajun Song , Rongwei Lu , Chen Tang , Zhi Wang

Diffusion models (DMs) have significantly advanced the development of real-world image super-resolution (Real-ISR), but the computational cost of multi-step diffusion models limits their application. One-step diffusion models generate…

Computer Vision and Pattern Recognition · Computer Science 2025-02-13 Jianze Li , Jiezhang Cao , Yong Guo , Wenbo Li , Yulun Zhang

Generative modelling paradigms based on denoising diffusion processes have emerged as a leading candidate for conditional sampling in inverse problems. In many real-world applications, we often have access to large, expensively trained…

Pixel diffusion aims to generate images directly in pixel space in an end-to-end fashion. This approach avoids the limitations of VAE in the two-stage latent diffusion, offering higher model capacity. Existing pixel diffusion models suffer…

Computer Vision and Pattern Recognition · Computer Science 2026-04-09 Zehong Ma , Longhui Wei , Shuai Wang , Shiliang Zhang , Qi Tian

In this work, we address two limitations of existing conditional diffusion models: their slow inference speed due to the iterative denoising process and their reliance on paired data for model fine-tuning. To tackle these issues, we…

Computer Vision and Pattern Recognition · Computer Science 2024-03-19 Gaurav Parmar , Taesung Park , Srinivasa Narasimhan , Jun-Yan Zhu

Diffusion distillation represents a highly promising direction for achieving faithful text-to-image generation in a few sampling steps. However, despite recent successes, existing distilled models still do not provide the full spectrum of…

Computer Vision and Pattern Recognition · Computer Science 2024-12-03 Nikita Starodubcev , Mikhail Khoroshikh , Artem Babenko , Dmitry Baranchuk

Monocular Depth Estimation (MDE) is a fundamental 3D vision problem with numerous applications such as 3D scene reconstruction, autonomous navigation, and AI content creation. However, robust and generalizable MDE remains challenging due to…

Computer Vision and Pattern Recognition · Computer Science 2025-03-17 Yunpeng Bai , Qixing Huang

Restoring real-world degraded images, such as old photographs or low-resolution images, presents a significant challenge due to the complex, mixed degradations they exhibit, such as scratches, color fading, and noise. Recent data-driven…

Computer Vision and Pattern Recognition · Computer Science 2025-05-28 Peng Xiao , Hongbo Zhao , Yijun Wang , Jianxin Lin

Many self-supervised denoising approaches have been proposed in recent years. However, these methods tend to overly smooth images, resulting in the loss of fine structures that are essential for medical applications. In this paper, we…

Image and Video Processing · Electrical Eng. & Systems 2025-04-02 Basar Demir , Yikang Liu , Xiao Chen , Eric Z. Chen , Lin Zhao , Boris Mailhe , Terrence Chen , Shanhui Sun

The images produced by diffusion models can attain excellent perceptual quality. However, it is challenging for diffusion models to guarantee distortion, hence the integration of diffusion models and image compression models still needs…

Image and Video Processing · Electrical Eng. & Systems 2024-05-03 Yiyang Ma , Wenhan Yang , Jiaying Liu

Recently, diffusion models (DMs) have made significant strides in high-quality image generation. However, the multi-step denoising process often results in considerable computational overhead, impeding deployment on resource-constrained…

Computer Vision and Pattern Recognition · Computer Science 2026-03-24 Yu-Shan Tai , An-Yeu , Wu

Unpaired image-to-image translation has seen significant progress since the introduction of CycleGAN. However, methods based on diffusion models or Schr\"odinger bridges have yet to be widely adopted in real-world applications due to their…

Computer Vision and Pattern Recognition · Computer Science 2025-03-20 Suhyeon Lee , Kwanyoung Kim , Jong Chul Ye

Recent advancements in diffusion models have significantly improved performance in super-resolution (SR) tasks. However, previous research often overlooks the fundamental differences between SR and general image generation. General image…

Image and Video Processing · Electrical Eng. & Systems 2024-10-31 Hanlin Wu , Jiangwei Mo , Xiaohui Sun , Jie Ma

High-fidelity, high-resolution numerical simulations are crucial for studying complex multiscale phenomena in fluid dynamics, such as turbulent flows and ocean waves. However, direct numerical simulations with high-resolution solvers are…

Numerical Analysis · Mathematics 2025-04-14 Wuzhe Xu , Yulong Lu , Lian Shen , Anqing Xuan , Ali Barzegari

Pansharpening is a significant image fusion task that fuses low-resolution multispectral images (LRMSI) and high-resolution panchromatic images (PAN) to obtain high-resolution multispectral images (HRMSI). The development of the diffusion…

Computer Vision and Pattern Recognition · Computer Science 2025-12-22 Kai Liu , Zeli Lin , Weibo Wang , Linghe Kong , Yulun Zhang

Diffusion models have emerged as the leading approach for text-to-image generation. However, their iterative sampling process, which gradually morphs random noise into coherent images, introduces significant latency that limits their…

Computer Vision and Pattern Recognition · Computer Science 2026-02-16 Peijie Qiu , Hariharan Ramshankar , Arnau Ramisa , René Vidal , Amit Kumar K C , Vamsi Salaka , Rahul Bhagat

Generating high-resolution images with generative models has recently been made widely accessible by leveraging diffusion models pre-trained on large-scale datasets. Various techniques, such as MultiDiffusion and SyncDiffusion, have further…

Computer Vision and Pattern Recognition · Computer Science 2025-01-08 Stanislav Frolov , Brian B. Moser , Andreas Dengel

We present a new method for making diffusion models faster to sample. The method distills many-step diffusion models into few-step models by matching conditional expectations of the clean data given noisy data along the sampling trajectory.…

Machine Learning · Computer Science 2024-06-07 Tim Salimans , Thomas Mensink , Jonathan Heek , Emiel Hoogeboom

While one-step diffusion models have recently excelled in perceptual image compression, their application to video remains limited. Prior efforts typically rely on pretrained 2D autoencoders that generate per-frame latent representations…

Image and Video Processing · Electrical Eng. & Systems 2026-01-06 Xingchen Li , Junzhe Zhang , Junqi Shi , Ming Lu , Zhan Ma

The image captioning task is typically realized by an auto-regressive method that decodes the text tokens one by one. We present a diffusion-based captioning model, dubbed the name DDCap, to allow more decoding flexibility. Unlike image…

Computer Vision and Pattern Recognition · Computer Science 2022-12-12 Zixin Zhu , Yixuan Wei , Jianfeng Wang , Zhe Gan , Zheng Zhang , Le Wang , Gang Hua , Lijuan Wang , Zicheng Liu , Han Hu