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Low-bit quantization is widely used to compress super-resolution (SR) models and reduce storage and computation costs for deployment on resource-limited devices. However, when SR models are pushed to ultra-low precision (2-4 bits),…

计算机视觉与模式识别 · 计算机科学 2026-05-22 Haotong Qin , Xudong Ma , Xianglong Liu , Jie Luo , Jinyang Guo , Michele Magno , Yulun Zhang

Diffusion-based image compression has demonstrated impressive perceptual performance. However, it suffers from two critical drawbacks: (1) excessive decoding latency due to multi-step sampling, and (2) poor fidelity resulting from…

计算机视觉与模式识别 · 计算机科学 2025-12-03 Zheng Chen , Mingde Zhou , Jinpei Guo , Jiale Yuan , Yifei Ji , Yulun Zhang

Tokenizers are a key component of state-of-the-art generative image models, extracting the most important features from the signal while reducing data dimension and redundancy. Most current tokenizers are based on KL-regularized variational…

计算机视觉与模式识别 · 计算机科学 2025-10-07 Théophane Vallaeys , Jakob Verbeek , Matthieu Cord

Diffusionmodels(DMs)havedemonstratedremarkableachievements in synthesizing images of high fidelity and diversity. However, the extensive computational requirements and slow generative speed of diffusion models have limited their widespread…

计算机视觉与模式识别 · 计算机科学 2025-01-03 Jiaojiao Ye , Zhen Wang , Linnan Jiang

Pretrained latent diffusion models have shown strong potential for lossy image compression, owing to their powerful generative priors. Most existing diffusion-based methods reconstruct images by iteratively denoising from random noise,…

图像与视频处理 · 电气工程与系统科学 2025-10-21 Jinpei Guo , Yifei Ji , Zheng Chen , Kai Liu , Min Liu , Wang Rao , Wenbo Li , Yong Guo , Yulun Zhang

Snapshot compressive imaging (SCI) captures multispectral images (MSIs) using a single coded two-dimensional (2-D) measurement, but reconstructing high-fidelity MSIs from these compressed inputs remains a fundamentally ill-posed challenge.…

图像与视频处理 · 电气工程与系统科学 2025-12-02 Shaoguang Huang , Yunzhen Wang , Haijin Zeng , Hongyu Chen , Hongyan Zhang

Diffusion-based models have been widely used in various visual generation tasks, showing promising results in image super-resolution (SR), while typically being limited by dozens or even hundreds of sampling steps. Although existing methods…

计算机视觉与模式识别 · 计算机科学 2025-06-04 Xue Wu , Jingwei Xin , Zhijun Tu , Jie Hu , Jie Li , Nannan Wang , Xinbo Gao

In this paper, we propose GuideSR, a novel single-step diffusion-based image super-resolution (SR) model specifically designed to enhance image fidelity. Existing diffusion-based SR approaches typically adapt pre-trained generative models…

图像与视频处理 · 电气工程与系统科学 2025-05-02 Aditya Arora , Zhengzhong Tu , Yufei Wang , Ruizheng Bai , Jian Wang , Sizhuo Ma

Real-world image super-resolution (Real-ISR) aims to reconstruct high-resolution images from low-resolution inputs degraded by complex, unknown processes. While many Stable Diffusion (SD)-based Real-ISR methods have achieved remarkable…

图像与视频处理 · 电气工程与系统科学 2025-03-11 Bin Chen , Gehui Li , Rongyuan Wu , Xindong Zhang , Jie Chen , Jian Zhang , Lei Zhang

Diffusion Transformers for video generation have gained significant research interest since the impressive performance of SORA. Efficient deployment of such generative-AI models on GPUs has been demonstrated with dynamic quantization.…

计算机视觉与模式识别 · 计算机科学 2025-06-18 Sanghyun Yi , Qingfeng Liu , Mostafa El-Khamy

Recent advances in diffusion and flow-based generative models have demonstrated remarkable success in image restoration tasks, achieving superior perceptual quality compared to traditional deep learning approaches. However, these methods…

计算机视觉与模式识别 · 计算机科学 2026-03-20 Yuanzhi Zhu , Ruiqing Wang , Shilin Lu , Junnan Li , Hanshu Yan , Kai Zhang

Diffusion-based image super-resolution (SR) methods are mainly limited by the low inference speed due to the requirements of hundreds or even thousands of sampling steps. Existing acceleration sampling techniques inevitably sacrifice…

计算机视觉与模式识别 · 计算机科学 2023-10-19 Zongsheng Yue , Jianyi Wang , Chen Change Loy

Recent diffusion-based one-step methods have shown remarkable progress in the field of image super-resolution, yet they remain constrained by three critical limitations: (1) inferior fidelity performance caused by the information loss from…

计算机视觉与模式识别 · 计算机科学 2025-12-17 Hao Chen , Junyang Chen , Jinshan Pan , Jiangxin Dong

Diffusion-based image compression methods have achieved notable progress, delivering high perceptual quality at low bitrates. However, their practical deployment is hindered by significant inference latency and heavy computational overhead,…

计算机视觉与模式识别 · 计算机科学 2026-02-03 Yiwen Jia , Hao Wei , Yanhui Zhou , Chenyang Ge

Diffusion models have demonstrated remarkable capabilities in image synthesis and related generative tasks. Nevertheless, their practicality for real-world applications is constrained by substantial computational costs and latency issues.…

计算机视觉与模式识别 · 计算机科学 2024-04-16 Yefei He , Jing Liu , Weijia Wu , Hong Zhou , Bohan Zhuang

Diffusion models have recently achieved great success in the synthesis of high-quality images and videos. However, the existing denoising techniques in diffusion models are commonly based on step-by-step noise predictions, which suffers…

计算机视觉与模式识别 · 计算机科学 2024-10-15 Hancheng Ye , Jiakang Yuan , Renqiu Xia , Xiangchao Yan , Tao Chen , Junchi Yan , Botian Shi , Bo Zhang

Super-resolution (SR) aims to reconstruct high-resolution (HR) images from their low-resolution (LR) counterparts, often relying on effective downsampling to generate diverse and realistic training pairs. In this work, we propose a…

图像与视频处理 · 电气工程与系统科学 2025-03-18 Sohwi Kim , Tae-Kyun Kim

While burst Low-Resolution (LR) images are useful for improving their Super Resolution (SR) image compared to a single LR image, prior burst SR methods are trained in a deterministic manner, which produces a blurry SR image. Since such…

计算机视觉与模式识别 · 计算机科学 2025-07-21 Kento Kawai , Takeru Oba , Kyotaro Tokoro , Kazutoshi Akita , Norimichi Ukita

Advanced diffusion models (DMs) perform impressively in image super-resolution (SR), but the high memory and computational costs hinder their deployment. Binarization, an ultra-compression algorithm, offers the potential for effectively…

计算机视觉与模式识别 · 计算机科学 2024-11-01 Zheng Chen , Haotong Qin , Yong Guo , Xiongfei Su , Xin Yuan , Linghe Kong , Yulun Zhang

Despite recent advances, single-image super-resolution (SR) remains challenging, especially in real-world scenarios with complex degradations. Diffusion-based SR methods, particularly those built on Stable Diffusion, leverage strong…

计算机视觉与模式识别 · 计算机科学 2026-04-29 Fabio D'Oronzio , Federico Putamorsi , Leonardo Zini , Marcella Cornia , Lorenzo Baraldi