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Diffusion models have recently shown great promise for generative modeling, outperforming GANs on perceptual quality and autoregressive models at density estimation. A remaining downside is their slow sampling time: generating high quality…

Machine Learning · Computer Science 2022-06-08 Tim Salimans , Jonathan Ho

Conditional diffusion models have demonstrated impressive performance in image manipulation tasks. The general pipeline involves adding noise to the image and then denoising it. However, this method faces a trade-off problem: adding too…

Computer Vision and Pattern Recognition · Computer Science 2023-07-18 Luozhou Wang , Shuai Yang , Shu Liu , Ying-cong Chen

Recent advancements in timestep-distilled diffusion models have enabled high-quality image generation that rivals non-distilled multi-step models, but with significantly fewer inference steps. While such models are attractive for…

Computer Vision and Pattern Recognition · Computer Science 2025-03-04 Zichen Miao , Zhengyuan Yang , Kevin Lin , Ze Wang , Zicheng Liu , Lijuan Wang , Qiang Qiu

Diffusion models have been applied to 3D LiDAR scene completion due to their strong training stability and high completion quality. However, the slow sampling speed limits the practical application of diffusion-based scene completion models…

Computer Vision and Pattern Recognition · Computer Science 2025-07-29 Shengyuan Zhang , An Zhao , Ling Yang , Zejian Li , Chenye Meng , Haoran Xu , Tianrun Chen , AnYang Wei , Perry Pengyun GU , Lingyun Sun

In diffusion models, samples are generated through an iterative refinement process, requiring hundreds of sequential model evaluations. Several recent methods have introduced approximations (fewer discretization steps or distillation) to…

Machine Learning · Computer Science 2024-12-12 Nikil Roashan Selvam , Amil Merchant , Stefano Ermon

Efficient models for remote sensing object counting are urgently required for applications in scenarios with limited computing resources, such as drones or embedded systems. A straightforward yet powerful technique to achieve this is…

Computer Vision and Pattern Recognition · Computer Science 2025-03-11 Shengqin Jiang , Yuan Gao , Bowen Li , Fengna Cheng , Renlong Hang , Qingshan Liu

Diffusion models have revolutionized text-to-image generation with its exceptional quality and creativity. However, its multi-step sampling process is known to be slow, often requiring tens of inference steps to obtain satisfactory results.…

Machine Learning · Computer Science 2024-03-26 Xingchao Liu , Xiwen Zhang , Jianzhu Ma , Jian Peng , Qiang Liu

Significant advances have been made in the sampling efficiency of diffusion models and flow matching models, driven by Consistency Distillation (CD), which trains a student model to mimic the output of a teacher model at a later timestep.…

Computer Vision and Pattern Recognition · Computer Science 2024-12-10 Yunpeng Liu , Boxiao Liu , Yi Zhang , Xingzhong Hou , Guanglu Song , Yu Liu , Haihang You

Diffusion models have recently advanced video restoration, but applying them to real-world video super-resolution (VSR) remains challenging due to high latency, prohibitive computation, and poor generalization to ultra-high resolutions. Our…

Computer Vision and Pattern Recognition · Computer Science 2025-10-15 Junhao Zhuang , Shi Guo , Xin Cai , Xiaohui Li , Yihao Liu , Chun Yuan , Tianfan Xue

Recent research on deep convolutional neural networks (CNNs) has provided a significant performance boost on efficient super-resolution (SR) tasks by trading off the performance and applicability. However, most existing methods focus on…

Image and Video Processing · Electrical Eng. & Systems 2023-12-25 Yan Wang , Tongtong Su , Yusen Li , Jiuwen Cao , Gang Wang , Xiaoguang Liu

Universal image representations are critical in enabling real-world fine-grained and instance-level recognition applications, where objects and entities from any domain must be identified at large scale. Despite recent advances, existing…

Computer Vision and Pattern Recognition · Computer Science 2024-12-11 Nikolaos-Antonios Ypsilantis , Kaifeng Chen , André Araujo , Ondřej Chum

Image Auto-regressive (AR) models have emerged as a powerful paradigm of visual generative models. Despite their promising performance, they suffer from slow generation speed due to the large number of sampling steps required. Although…

Machine Learning · Computer Science 2025-10-27 Enshu Liu , Qian Chen , Xuefei Ning , Shengen Yan , Guohao Dai , Zinan Lin , Yu Wang

Diffusion large language models (DLLMs) have emerged as powerful generative models with the promise of fast text generation through parallel decoding. However, realizing this potential in practice remains challenging: reducing the number of…

While diffusion models show promising results in image editing given a target prompt, achieving both prompt fidelity and background preservation remains difficult. Recent works have introduced score distillation techniques that leverage the…

Distribution matching distillation (DMD) facilitates few-step image generation by aligning a distilled student with a reference multi-step teacher. In practice, however, optimizing DMD can reduce sample diversity in few-step synthesis, and…

Computer Vision and Pattern Recognition · Computer Science 2026-05-20 Tianhe Wu , Ruibin Li , Lei Zhang , Kede Ma

Masked Diffusion Models (MDMs) have emerged as a powerful generative modeling technique. Despite their remarkable results, they typically suffer from slow inference with several steps. In this paper, we propose Di$\mathtt{[M]}$O, a novel…

Computer Vision and Pattern Recognition · Computer Science 2025-03-20 Yuanzhi Zhu , Xi Wang , Stéphane Lathuilière , Vicky Kalogeiton

Diffusion- and flow-based models have emerged as state-of-the-art generative modeling approaches, but they require many sampling steps. Consistency models can distill these models into efficient one-step generators; however, unlike flow-…

Computer Vision and Pattern Recognition · Computer Science 2025-06-18 Amirmojtaba Sabour , Sanja Fidler , Karsten Kreis

Diffusion-based super-resolution (SR) is a key component in video generation and video restoration, but is slow and expensive, limiting scalability to higher resolutions and longer videos. Our key insight is that many regions in video are…

Computer Vision and Pattern Recognition · Computer Science 2025-10-13 Rohan Choudhury , Shanchuan Lin , Jianyi Wang , Hao Chen , Qi Zhao , Feng Cheng , Lu Jiang , Kris Kitani , Laszlo A. Jeni

We propose a unified diffusion model-based correction and super-resolution method to enhance the fidelity and resolution of diverse low-quality data through a two-step pipeline. First, the correction step employs a novel enhanced stochastic…

Numerical Analysis · Mathematics 2025-05-15 Wuzhe Xu , Yulong Lu , Sifan Wang , Tong-Rui Liu

Significant advancements in image generation have been made with diffusion models. Nevertheless, when contrasted with previous generative models, diffusion models face substantial computational overhead, leading to failure in real-time…

Computer Vision and Pattern Recognition · Computer Science 2024-10-08 Linfeng Zhang , Kaisheng Ma