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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

Monocular Depth Estimation (MDE) has emerged as a pivotal task in computer vision, supporting numerous real-world applications. However, deploying accurate depth estimation models on resource-limited edge devices, especially…

Computer Vision and Pattern Recognition · Computer Science 2025-03-24 Xuan Shen , Weize Ma , Jing Liu , Changdi Yang , Rui Ding , Quanyi Wang , Henghui Ding , Wei Niu , Yanzhi Wang , Pu Zhao , Jun Lin , Jiuxiang Gu

Due to its efficiency, Post-Training Quantization (PTQ) has been widely adopted for compressing Vision Transformers (ViTs). However, when quantized into low-bit representations, there is often a significant performance drop compared to…

Computer Vision and Pattern Recognition · Computer Science 2024-12-20 Rui Ding , Liang Yong , Sihuan Zhao , Jing Nie , Lihui Chen , Haijun Liu , Xichuan Zhou

The exponential growth of video traffic has placed increasing demands on bandwidth and storage infrastructure, particularly for content delivery networks (CDNs) and edge devices. While traditional video codecs like H.264 and HEVC achieve…

Computer Vision and Pattern Recognition · Computer Science 2026-01-01 Manikanta Kotthapalli , Banafsheh Rekabdar

Image diffusion distillation achieves high-fidelity generation with very few sampling steps. However, applying these techniques directly to video diffusion often results in unsatisfactory frame quality due to the limited visual quality in…

Computer Vision and Pattern Recognition · Computer Science 2024-10-29 Yuanhao Zhai , Kevin Lin , Zhengyuan Yang , Linjie Li , Jianfeng Wang , Chung-Ching Lin , David Doermann , Junsong Yuan , Lijuan Wang

Video generation based on diffusion models presents a challenging multimodal task, with video editing emerging as a pivotal direction in this field. Recent video editing approaches primarily fall into two categories: training-required and…

Computer Vision and Pattern Recognition · Computer Science 2025-05-13 Junhao Xia , Chaoyang Zhang , Yecheng Zhang , Chengyang Zhou , Zhichang Wang , Bochun Liu , Dongshuo Yin

Despite its improvements in coding performance compared to traditional codecs, Learned Image Compression (LIC) suffers from large computational costs for storage and deployment. Model quantization offers an effective solution to reduce the…

Image and Video Processing · Electrical Eng. & Systems 2025-06-03 Md Adnan Faisal Hossain , Zhihao Duan , Fengqing Zhu

Neural network quantization aims to reduce the bit-widths of weights and activations, making it a critical technique for deploying deep neural networks on resource-constrained hardware. Most Quantization-Aware Training (QAT) methods rely on…

Machine Learning · Computer Science 2025-09-03 Kaiqi Zhao

Mixed-precision quantization mostly predetermines the model bit-width settings before actual training due to the non-differential bit-width sampling process, obtaining sub-optimal performance. Worse still, the conventional static…

Artificial Intelligence · Computer Science 2023-02-10 Yingchun Wang , Jingcai Guo , Song Guo , Weizhan Zhang

Quantization method plays a crucial role in improving model efficiency and reducing deployment costs, enabling the widespread application of deep learning models on resource-constrained devices. However, the quantization process inevitably…

Machine Learning · Computer Science 2025-09-30 Jinhao Zhang , Yunquan Zhang , Boyang Zhang , Zeyu Liu , Daning Cheng

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

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

Vector quantization is common in deep models, yet its hard assignments block gradients and hinder end-to-end training. We propose DiVeQ, which treats quantization as adding an error vector that mimics the quantization distortion, keeping…

Machine Learning · Computer Science 2026-05-27 Mohammad Hassan Vali , Tom Bäckström , Arno Solin

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

Camera-based multi-view 3D detection is crucial for autonomous driving. PETR and its variants (PETRs) excel in benchmarks but face deployment challenges due to high computational cost and memory footprint. Quantization is an effective…

Computer Vision and Pattern Recognition · Computer Science 2025-11-17 Jiangyong Yu , Changyong Shu , Sifan Zhou , Zichen Yu , Xing Hu , Yan Chen , Dawei Yang

Camera-based multi-view 3D detection is crucial for autonomous driving. PETR and its variants (PETRs) excel in benchmarks but face deployment challenges due to high computational cost and memory footprint. Quantization is an effective…

Computer Vision and Pattern Recognition · Computer Science 2025-11-20 Jiangyong Yu , Changyong Shu , Sifan Zhou , Zichen Yu , Xing Hu , Yan Chen , Dawei Yang

The Segment Anything Model (SAM) is a popular vision foundation model; however, its high computational and memory demands make deployment on resource-constrained devices challenging. While Post-Training Quantization (PTQ) is a practical…

Computer Vision and Pattern Recognition · Computer Science 2025-05-09 Navin Ranjan , Andreas Savakis

Diffusion models (DMs) generate remarkable high quality images via the stochastic denoising process, which unfortunately incurs high sampling time. Post-quantizing the trained diffusion models in fixed bit-widths, e.g., 4 bits on weights…

Computer Vision and Pattern Recognition · Computer Science 2024-12-03 Rocco Manz Maruzzelli , Basile Lewandowski , Lydia Y. Chen

Diffusion models have achieved remarkable success in image generation but come with significant computational costs, posing challenges for deployment in resource-constrained environments. Recent post-training quantization (PTQ) methods have…

Computer Vision and Pattern Recognition · Computer Science 2025-07-18 Dongyeun Lee , Jiwan Hur , Hyounguk Shon , Jae Young Lee , Junmo Kim

Video tokenizers are essential for latent video diffusion models, converting raw video data into spatiotemporally compressed latent spaces for efficient training. However, extending state-of-the-art video tokenizers to achieve a temporal…

Computer Vision and Pattern Recognition · Computer Science 2025-08-05 Aniruddha Mahapatra , Long Mai , David Bourgin , Yitian Zhang , Feng Liu