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Related papers: DFQ-ViT: Data-Free Quantization for Vision Transfo…

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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), which only requires a tiny dataset for calibration without end-to-end retraining, is a light and practical model compression technique. Recently, several PTQ schemes for vision transformers (ViTs) have been…

Computer Vision and Pattern Recognition · Computer Science 2023-08-08 Zhikai Li , Junrui Xiao , Lianwei Yang , Qingyi Gu

Vision transformers (ViTs) are emerging with significantly improved accuracy in computer vision tasks. However, their complex architecture and enormous computation/storage demand impose urgent needs for new hardware accelerator design…

Computer Vision and Pattern Recognition · Computer Science 2022-08-11 Zhengang Li , Mengshu Sun , Alec Lu , Haoyu Ma , Geng Yuan , Yanyue Xie , Hao Tang , Yanyu Li , Miriam Leeser , Zhangyang Wang , Xue Lin , Zhenman Fang

Face Image Quality Assessment (FIQA) is essential for reliable face recognition systems. Current approaches primarily exploit only final-layer representations, while training-free methods require multiple forward passes or backpropagation.…

Computer Vision and Pattern Recognition · Computer Science 2026-01-12 Guray Ozgur , Eduarda Caldeira , Tahar Chettaoui , Jan Niklas Kolf , Marco Huber , Naser Damer , Fadi Boutros

Diffusion transformers (DiT) have demonstrated exceptional performance in video generation. However, their large number of parameters and high computational complexity limit their deployment on edge devices. Quantization can reduce storage…

Computer Vision and Pattern Recognition · Computer Science 2025-05-29 Weilun Feng , Chuanguang Yang , Haotong Qin , Xiangqi Li , Yu Wang , Zhulin An , Libo Huang , Boyu Diao , Zixiang Zhao , Yongjun Xu , Michele Magno

Motivated by the huge success of Transformers in the field of natural language processing (NLP), Vision Transformers (ViTs) have been rapidly developed and achieved remarkable performance in various computer vision tasks. However, their…

Computer Vision and Pattern Recognition · Computer Science 2024-10-01 Huihong Shi , Haikuo Shao , Wendong Mao , Zhongfeng Wang

Vision Transformers (ViTs) have excelled in computer vision tasks but are memory-consuming and computation-intensive, challenging their deployment on resource-constrained devices. To tackle this limitation, prior works have explored…

Artificial Intelligence · Computer Science 2024-05-31 Huihong Shi , Xin Cheng , Wendong Mao , Zhongfeng Wang

Transformer-based diffusion models, dubbed Diffusion Transformers (DiTs), have achieved state-of-the-art performance in image and video generation tasks. However, their large model size and slow inference speed limit their practical…

Image and Video Processing · Electrical Eng. & Systems 2026-01-26 Xinyan Liu , Huihong Shi , Yang Xu , Zhongfeng Wang

Diffusion Models (DM) have revolutionized the text-to-image visual generation process. However, the large computational cost and model footprint of DMs hinders practical deployment, especially on edge devices. Post-training quantization…

Computer Vision and Pattern Recognition · Computer Science 2026-01-05 Ruichen Chen , Keith G. Mills , Di Niu

The groundbreaking performance of transformers in Natural Language Processing (NLP) tasks has led to their replacement of traditional Convolutional Neural Networks (CNNs), owing to the efficiency and accuracy achieved through the…

Computer Vision and Pattern Recognition · Computer Science 2024-08-13 Gousia Habib , Damandeep Singh , Ishfaq Ahmad Malik , Brejesh Lall

As emerging hardware begins to support mixed bit-width arithmetic computation, mixed-precision quantization is widely used to reduce the complexity of neural networks. However, Vision Transformers (ViTs) require complex self-attention…

Computer Vision and Pattern Recognition · Computer Science 2023-05-12 Junrui Xiao , Zhikai Li , Lianwei Yang , Qingyi Gu

Recently, vision transformers (ViTs) have superseded convolutional neural networks in numerous applications, including classification, detection, and segmentation. However, the high computational requirements of ViTs hinder their widespread…

Computer Vision and Pattern Recognition · Computer Science 2024-05-20 Jemin Lee , Yongin Kwon , Sihyeong Park , Misun Yu , Jeman Park , Hwanjun Song

The diffusion model has gained popularity in vision applications due to its remarkable generative performance and versatility. However, high storage and computation demands, resulting from the model size and iterative generation, hinder its…

Computer Vision and Pattern Recognition · Computer Science 2023-12-12 Junhyuk So , Jungwon Lee , Daehyun Ahn , Hyungjun Kim , Eunhyeok Park

Post-training quantization (PTQ) has stood out as a cost-effective and promising model compression paradigm in recent years, as it avoids computationally intensive model retraining. Nevertheless, current PTQ methods for Vision Transformers…

Computer Vision and Pattern Recognition · Computer Science 2025-06-16 Zhuguanyu Wu , Shihe Wang , Jiayi Zhang , Jiaxin Chen , Yunhong Wang

In this paper, we propose Mix-QViT, an explainability-driven MPQ framework that systematically allocates bit-widths to each layer based on two criteria: layer importance, assessed via Layer-wise Relevance Propagation (LRP), which identifies…

Computer Vision and Pattern Recognition · Computer Science 2025-01-14 Navin Ranjan , Andreas Savakis

Post-training quantization (PTQ) has emerged as a promising solution for reducing the storage and computational cost of vision transformers (ViTs). Recent advances primarily target at crafting quantizers to deal with peculiar activations…

Computer Vision and Pattern Recognition · Computer Science 2025-02-10 Runqing Jiang , Ye Zhang , Longguang Wang , Pengpeng Yu , Yulan Guo

Diffusion Transformers (DiTs) achieve state-of-the-art image generation quality but incur substantial memory and computational costs at inference. While aggressive Post-Training Quantization (PTQ) to 4-bit precision offers significant…

Computer Vision and Pattern Recognition · Computer Science 2026-05-19 Sayeh Sharify , Mahsa Salmani , Hesham Mostafa

The majority of quantization methods have been proposed to reduce the model size of Vision Transformers, yet most of them have overlooked the quantization of non-linear operations. Only a few works have addressed quantization for non-linear…

Computer Vision and Pattern Recognition · Computer Science 2025-06-05 Gihwan Kim , Jemin Lee , Sihyeong Park , Yongin Kwon , Hyungshin Kim

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

Data-free quantization (DFQ) recovers the performance of quantized network (Q) without the original data, but generates the fake sample via a generator (G) by learning from full-precision network (P), which, however, is totally independent…

Computer Vision and Pattern Recognition · Computer Science 2023-03-21 Biao Qian , Yang Wang , Richang Hong , Meng Wang