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Vision Transformers (ViTs) have become one of the most commonly used backbones for vision tasks. Despite their remarkable performance, they often suffer significant accuracy drops when quantized for practical deployment, particularly by…

Computer Vision and Pattern Recognition · Computer Science 2025-04-04 Zhuguanyu Wu , Jiayi Zhang , Jiaxin Chen , Jinyang Guo , Di Huang , Yunhong Wang

Post-training quantization (PTQ) has emerged as an effective technique for compressing large models and accelerating inference without retraining. While PTQ has been extensively studied in large language models (LLMs), its application to…

Computer Vision and Pattern Recognition · Computer Science 2026-03-09 Yufei Xue , Yushi Huang , Jiawei Shao , Lunjie Zhu , Chi Zhang , Xuelong Li , Jun Zhang

Attention-based neural networks such as the Vision Transformer (ViT) have recently attained state-of-the-art results on many computer vision benchmarks. Scale is a primary ingredient in attaining excellent results, therefore, understanding…

Computer Vision and Pattern Recognition · Computer Science 2022-06-22 Xiaohua Zhai , Alexander Kolesnikov , Neil Houlsby , Lucas Beyer

In this paper, we propose a fully differentiable quantization method for vision transformer (ViT) named as Q-ViT, in which both of the quantization scales and bit-widths are learnable parameters. Specifically, based on our observation that…

Computer Vision and Pattern Recognition · Computer Science 2022-09-07 Zhexin Li , Tong Yang , Peisong Wang , Jian Cheng

Post-training quantization (PTQ) for vision transformers (ViTs) has received increasing attention from both academic and industrial communities due to its minimal data needs and high time efficiency. However, many current methods fail to…

Computer Vision and Pattern Recognition · Computer Science 2025-02-05 Yunshan Zhong , You Huang , Jiawei Hu , Yuxin Zhang , Rongrong Ji

Vision Transformers (ViTs) are essential in computer vision but are computationally intensive, too. Model quantization, particularly to low bit-widths like 4-bit, aims to alleviate this difficulty, yet existing Post-Training Quantization…

Computer Vision and Pattern Recognition · Computer Science 2025-06-16 Guang Liang , Xinyao Liu , Jianxin Wu

We present a framework for end-to-end joint quantization of Vision Transformers trained on ImageNet for the purpose of image classification. Unlike prior post-training or block-wise reconstruction methods, we jointly optimize over the…

Computer Vision and Pattern Recognition · Computer Science 2026-02-24 Shile Li , Markus Karmann , Onay Urfalioglu

Vision Transformers (ViTs) have demonstrated remarkable potential in image processing tasks by utilizing self-attention mechanisms to capture global relationships within data. However, their scalability is hindered by significant…

Machine Learning · Computer Science 2026-02-25 Huy Trinh , Rebecca Ma , Zeqi Yu , Tahsin Reza

Although Vision Transformers (ViTs) have achieved significant success, their intensive computations and substantial memory overheads challenge their deployment on edge devices. To address this, efficient ViTs have emerged, typically…

Hardware Architecture · Computer Science 2024-10-15 Yanbiao Liang , Huihong Shi , Zhongfeng Wang

Despite the outstanding performance of transformers in both language and vision tasks, the expanding computation and model size have increased the demand for efficient deployment. To address the heavy computation and parameter drawbacks,…

Machine Learning · Computer Science 2024-10-15 Xijie Huang , Zhiqiang Shen , Pingcheng Dong , Kwang-Ting Cheng

Scaling model size significantly challenges the deployment and inference of Large Language Models (LLMs). Due to the redundancy in LLM weights, recent research has focused on pushing weight-only quantization to extremely low-bit (even down…

Artificial Intelligence · Computer Science 2024-10-23 Yifei Liu , Jicheng Wen , Yang Wang , Shengyu Ye , Li Lyna Zhang , Ting Cao , Cheng Li , Mao Yang

Post-training quantization (PTQ) efficiently compresses vision models, but unfortunately, it accompanies a certain degree of accuracy degradation. Reconstruction methods aim to enhance model performance by narrowing the gap between the…

Computer Vision and Pattern Recognition · Computer Science 2024-06-14 Lianwei Yang , Zhikai Li , Junrui Xiao , Haisong Gong , Qingyi Gu

Vision Transformers (ViTs) achieve state-of-the-art performance on challenging vision tasks, but their deployment on edge devices is severely hindered by the computational complexity and global reduction bottleneck imposed by layer…

Computer Vision and Pattern Recognition · Computer Science 2026-05-15 Kieran Carrigg , Sigur de Vries , Amirhossein Sadough , Marcel van Gerven

Vision transformers (ViTs) have been successfully applied in image classification tasks recently. In this paper, we show that, unlike convolution neural networks (CNNs)that can be improved by stacking more convolutional layers, the…

Computer Vision and Pattern Recognition · Computer Science 2021-04-20 Daquan Zhou , Bingyi Kang , Xiaojie Jin , Linjie Yang , Xiaochen Lian , Zihang Jiang , Qibin Hou , Jiashi Feng

Diffusion transformers have demonstrated remarkable performance in visual generation tasks, such as generating realistic images or videos based on textual instructions. However, larger model sizes and multi-frame processing for video…

Computer Vision and Pattern Recognition · Computer Science 2025-02-25 Tianchen Zhao , Tongcheng Fang , Haofeng Huang , Enshu Liu , Rui Wan , Widyadewi Soedarmadji , Shiyao Li , Zinan Lin , Guohao Dai , Shengen Yan , Huazhong Yang , Xuefei Ning , Yu Wang

Vision transformers (ViTs) have pushed the state-of-the-art for visual perception tasks. The self-attention mechanism underpinning the strength of ViTs has a quadratic complexity in both computation and memory usage. This motivates the…

Computer Vision and Pattern Recognition · Computer Science 2024-03-18 Jiachen Lu , Junge Zhang , Xiatian Zhu , Jianfeng Feng , Tao Xiang , Li Zhang

Vision Transformers (ViTs) have recently taken computer vision by storm. However, the softmax attention underlying ViTs comes with a quadratic complexity in time and memory, hindering the application of ViTs to high-resolution images. We…

Computer Vision and Pattern Recognition · Computer Science 2025-02-17 Chuanyang Zheng

Vision Transformers (ViTs) have achieved remarkable performance in various image classification tasks by leveraging the attention mechanism to process image patches as tokens. However, the high computational and memory demands of ViTs pose…

Computer Vision and Pattern Recognition · Computer Science 2024-06-27 Zhengqing Yuan , Rong Zhou , Hongyi Wang , Lifang He , Yanfang Ye , Lichao Sun

Post-training quantization (PTQ) is a primary approach for deploying large language models without fine-tuning, and the quantized performance is often strongly affected by the calibration in PTQ. By contrast, in vision-language models…

Computer Vision and Pattern Recognition · Computer Science 2026-02-10 Zhenhao Shang , Haizhao Jing , Guoting Wei , Haokui Zhang , Rong Xiao , Jianqing Gao , Peng Wang

Transformers, which are popular for language modeling, have been explored for solving vision tasks recently, e.g., the Vision Transformer (ViT) for image classification. The ViT model splits each image into a sequence of tokens with fixed…

Computer Vision and Pattern Recognition · Computer Science 2021-12-01 Li Yuan , Yunpeng Chen , Tao Wang , Weihao Yu , Yujun Shi , Zihang Jiang , Francis EH Tay , Jiashi Feng , Shuicheng Yan