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Diffusion models have achieved significant visual generation quality. However, their significant computational and memory costs pose challenge for their application on resource-constrained mobile devices or even desktop GPUs. Recent…

Computer Vision and Pattern Recognition · Computer Science 2024-05-31 Tianchen Zhao , Xuefei Ning , Tongcheng Fang , Enshu Liu , Guyue Huang , Zinan Lin , Shengen Yan , Guohao Dai , Yu Wang

Diffusion Transformers (DiTs) have emerged as the state-of-the-art architecture for video generation, yet their computational and memory demands hinder practical deployment. While post-training quantization (PTQ) presents a promising…

Computer Vision and Pattern Recognition · Computer Science 2026-03-09 Zhiteng Li , Hanxuan Li , Junyi Wu , Kai Liu , Haotong Qin , Linghe Kong , Guihai Chen , Yulun Zhang , Xiaokang Yang

Diffusion Transformers (DiTs) have recently emerged as a powerful backbone for image generation, demonstrating superior scalability and performance over U-Net architectures. However, their practical deployment is hindered by substantial…

Computer Vision and Pattern Recognition · Computer Science 2026-05-22 Kaicheng Yang , Xun Zhang , Haotong Qin , Yucheng Lin , Kaisen Yang , Xianglong Yan , Yulun Zhang

In this work, we explore the quantization of diffusion models in extreme compression regimes to reduce model size while maintaining performance. We begin by investigating classical vector quantization but find that diffusion models are…

Computer Vision and Pattern Recognition · Computer Science 2024-11-20 Jie Shao , Hanxiao Zhang , Jianxin Wu

The Diffusion models, widely used for image generation, face significant challenges related to their broad applicability due to prolonged inference times and high memory demands. Efficient Post-Training Quantization (PTQ) is crucial to…

Computer Vision and Pattern Recognition · Computer Science 2025-07-15 Yushi Huang , Ruihao Gong , Xianglong Liu , Jing Liu , Yuhang Li , Jiwen Lu , Dacheng Tao

Quantization techniques, including quantization-aware training (QAT) and post-training quantization (PTQ), have become essential for inference acceleration of image super-resolution (SR) networks. Compared to QAT, PTQ has garnered…

Computer Vision and Pattern Recognition · Computer Science 2025-11-04 Hailing Wang , jianglin Lu , Yitian Zhang , Yun Fu

The emergence of billion-parameter diffusion models such as Stable Diffusion XL, Imagen, and DALL-E 3 has significantly propelled the domain of generative AI. However, their large-scale architecture presents challenges in fine-tuning and…

Computer Vision and Pattern Recognition · Computer Science 2024-07-19 Hyogon Ryu , Seohyun Lim , Hyunjung Shim

Despite the widespread use of text-to-image diffusion models across various tasks, their computational and memory demands limit practical applications. To mitigate this issue, quantization of diffusion models has been explored. It reduces…

Computer Vision and Pattern Recognition · Computer Science 2025-02-13 Hyogon Ryu , NaHyeon Park , Hyunjung Shim

Post-training quantization (PTQ) is a popular method for compressing deep neural networks (DNNs) without modifying their original architecture or training procedures. Despite its effectiveness and convenience, the reliability of PTQ methods…

Machine Learning · Computer Science 2023-03-24 Zhihang Yuan , Jiawei Liu , Jiaxiang Wu , Dawei Yang , Qiang Wu , Guangyu Sun , Wenyu Liu , Xinggang Wang , Bingzhe Wu

Diffusion models have gained popularity for generating images from textual descriptions. Nonetheless, the substantial need for computational resources continues to present a noteworthy challenge, contributing to time-consuming processes.…

Computer Vision and Pattern Recognition · Computer Science 2023-11-30 Hanwen Chang , Haihao Shen , Yiyang Cai , Xinyu Ye , Zhenzhong Xu , Wenhua Cheng , Kaokao Lv , Weiwei Zhang , Yintong Lu , Heng Guo

Transformers have become the de facto architecture for a wide range of machine learning tasks, particularly in large language models (LLMs). Despite their remarkable performance, many challenges remain in training deep transformer networks,…

Computation and Language · Computer Science 2025-12-09 Zhijian Zhuo , Yutao Zeng , Ya Wang , Sijun Zhang , Jian Yang , Xiaoqing Li , Xun Zhou , Jinwen Ma

Transformer-based architectures have become the de-facto standard models for a wide range of Natural Language Processing tasks. However, their memory footprint and high latency are prohibitive for efficient deployment and inference on…

Machine Learning · Computer Science 2021-09-28 Yelysei Bondarenko , Markus Nagel , Tijmen Blankevoort

Model quantization is a widely used technique to compress and accelerate deep neural network (DNN) inference. Emergent DNN hardware accelerators begin to support mixed precision (1-8 bits) to further improve the computation efficiency,…

Computer Vision and Pattern Recognition · Computer Science 2019-04-09 Kuan Wang , Zhijian Liu , Yujun Lin , Ji Lin , Song Han

Model quantization is a widely used technique to compress and accelerate deep neural network (DNN) inference. Emergent DNN hardware accelerators begin to support mixed precision (1-8 bits) to further improve the computation efficiency,…

Computer Vision and Pattern Recognition · Computer Science 2020-08-14 Kuan Wang , Zhijian Liu , Yujun Lin , Ji Lin , Song Han

Post-Training Quantization (PTQ) has received significant attention because it requires only a small set of calibration data to quantize a full-precision model, which is more practical in real-world applications in which full access to a…

Computer Vision and Pattern Recognition · Computer Science 2024-07-30 Cuong Pham , Hoang Anh Dung , Cuong C. Nguyen , Trung Le , Dinh Phung , Gustavo Carneiro , Thanh-Toan Do

Diffusion transformers have demonstrated strong capabilities in generating high-quality images. However, as model size increases, the growing memory footprint and inference latency pose significant challenges for practical deployment.…

Computer Vision and Pattern Recognition · Computer Science 2025-12-04 Feice Huang , Zuliang Han , Xing Zhou , Yihuang Chen , Lifei Zhu , Haoqian Wang

Diffusion Models (DM) have democratized AI image generation through an iterative denoising process. Quantization is a major technique to alleviate the inference cost and reduce the size of DM denoiser networks. However, as denoisers evolve…

Computer Vision and Pattern Recognition · Computer Science 2024-12-20 Keith G. Mills , Mohammad Salameh , Ruichen Chen , Negar Hassanpour , Wei Lu , Di Niu

Large language models require massive memory footprints, severely limiting deployment on consumer hardware. Quantization reduces memory through lower numerical precision, but extreme 2-bit quantization suffers from catastrophic performance…

Machine Learning · Computer Science 2026-02-12 Bingxin Xu , Zhen Dong , Oussama Elachqar , Yuzhang Shang

In this paper, we propose a new methodology to design quantum hybrid diffusion models, derived from classical U-Nets with ResNet and Attention layers. Specifically, we propose two possible different hybridization schemes combining quantum…

Deep learning has recently garnered significant interest in wireless communications due to its superior performance compared to traditional model-based algorithms. Deep convolutional neural networks (CNNs) have demonstrated notable…

Signal Processing · Electrical Eng. & Systems 2025-09-22 SaiKrishna Saketh Yellapragada , Esa Ollila , Mario Costa