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This work challenges the residual prediction paradigm in visual autoregressive modeling and presents FlexVAR, a new Flexible Visual AutoRegressive image generation paradigm. FlexVAR facilitates autoregressive learning with ground-truth…

Computer Vision and Pattern Recognition · Computer Science 2026-01-13 Siyu Jiao , Gengwei Zhang , Yinlong Qian , Jiancheng Huang , Yao Zhao , Humphrey Shi , Lin Ma , Yunchao Wei , Zequn Jie

Recently, Visual Autoregressive ($\mathsf{VAR}$) Models introduced a groundbreaking advancement in the field of image generation, offering a scalable approach through a coarse-to-fine ``next-scale prediction'' paradigm. Suppose that $n$…

Machine Learning · Computer Science 2025-02-04 Yekun Ke , Xiaoyu Li , Yingyu Liang , Zhizhou Sha , Zhenmei Shi , Zhao Song

Low-bit floating-point (FP) formats, such as FP8, provide significant acceleration and memory savings in model training thanks to native hardware support on modern GPUs and NPUs. However, we analyze that FP8 quantization offers speedup…

Machine Learning · Computer Science 2025-10-29 Kanghyun Choi , Hyeyoon Lee , SunJong Park , Dain Kwon , Jinho Lee

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

Transformer-based models, such as BERT, have been widely applied in a wide range of natural language processing tasks. However, one inevitable side effect is that they require massive memory storage and inference cost when deployed in…

Artificial Intelligence · Computer Science 2023-12-13 Jianwei Li , Tianchi Zhang , Ian En-Hsu Yen , Dongkuan Xu

Vision transformers (ViTs) have demonstrated their superior accuracy for computer vision tasks compared to convolutional neural networks (CNNs). However, ViT models are often computation-intensive for efficient deployment on…

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

Deploying large language models (LLMs) on edge devices requires extremely low-bit quantization. Ultra-low precision formats such as NVFP4 offer a promising solution for reducing memory footprint and accelerating computation. However,…

Machine Learning · Computer Science 2026-03-25 Hanglin Li , Shuchang Tian , Chen Lin , Zhiyong Zhao , Kun Zhan

Feed-forward 3D reconstruction models, represented by Visual Geometry Grounded Transformer (VGGT), jointly predict multiple visual geometry tasks such as depth estimation, camera pose prediction, and point cloud reconstruction in a single…

Computer Vision and Pattern Recognition · Computer Science 2026-05-25 Yipu Zhang , Jintao Cheng , Weilun Feng , Jiehao Luo , Chuanguang Yang , Zhulin An , Yongjun Xu , Wei Zhang

Video matting is crucial for applications such as film production and virtual reality, yet deploying its computationally intensive models on resource-constrained devices presents challenges. Quantization is a key technique for model…

Computer Vision and Pattern Recognition · Computer Science 2025-06-13 Tianrui Zhu , Houyuan Chen , Ruihao Gong , Michele Magno , Haotong Qin , Kai Zhang

Network quantization significantly reduces model inference complexity and has been widely used in real-world deployments. However, most existing quantization methods have been developed mainly on Convolutional Neural Networks (CNNs), and…

Computer Vision and Pattern Recognition · Computer Science 2023-02-20 Yang Lin , Tianyu Zhang , Peiqin Sun , Zheng Li , Shuchang Zhou

In the complex domain of large language models (LLMs), striking a balance between computational efficiency and maintaining model quality is a formidable challenge. Navigating the inherent limitations of uniform quantization, particularly…

Machine Learning · Computer Science 2023-07-24 Xiaoxia Wu , Zhewei Yao , Yuxiong He

Large-scale autoregressive models have demonstrated remarkable capabilities in image generation. However, their sequential raster-scan decoding relies on strictly next-token prediction, making inference prohibitively expensive. Existing…

Computer Vision and Pattern Recognition · Computer Science 2026-05-13 Junkang Zhou , Yefei He , Feng Chen , Weijie Wang , Bohan Zhuang

Autoregressive (AR) modeling has achieved remarkable success in natural language processing by enabling models to generate text with coherence and contextual understanding through next token prediction. Recently, in image generation, VAR…

Computer Vision and Pattern Recognition · Computer Science 2024-12-20 Sucheng Ren , Qihang Yu , Ju He , Xiaohui Shen , Alan Yuille , Liang-Chieh Chen

Quantization-aware training (QAT) schemes have been shown to achieve near-full precision accuracy. They accomplish this by training a quantized model for multiple epochs. This is computationally expensive, mainly because of the full…

Machine Learning · Computer Science 2024-11-19 Saleh Ashkboos , Bram Verhoef , Torsten Hoefler , Evangelos Eleftheriou , Martino Dazzi

Visual Auto-Regressive (VAR) models significantly reduce inference steps through the "next-scale" prediction paradigm. However, progressive multi-scale generation incurs substantial memory overhead due to cumulative KV caching, limiting…

Computer Vision and Pattern Recognition · Computer Science 2025-11-21 Xiaoyue Chen , Yuling Shi , Kaiyuan Li , Huandong Wang , Yong Li , Xiaodong Gu , Xinlei Chen , Mingbao Lin

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

Diffusion generative models have become the standard for producing high-quality, coherent video content, yet their slow inference speeds and high computational demands hinder practical deployment. Although both quantization and sparsity can…

Computer Vision and Pattern Recognition · Computer Science 2025-06-09 Akide Liu , Zeyu Zhang , Zhexin Li , Xuehai Bai , Yizeng Han , Jiasheng Tang , Yuanjie Xing , Jichao Wu , Mingyang Yang , Weihua Chen , Jiahao He , Yuanyu He , Fan Wang , Gholamreza Haffari , Bohan Zhuang

Learning-based 3D reconstruction models, represented by Visual Geometry Grounded Transformers (VGGTs), have made remarkable progress with the use of large-scale transformers. Their prohibitive computational and memory costs severely hinder…

Computer Vision and Pattern Recognition · Computer Science 2026-03-10 Weilun Feng , Haotong Qin , Mingqiang Wu , Chuanguang Yang , Yuqi Li , Xiangqi Li , Zhulin An , Libo Huang , Yulun Zhang , Michele Magno , Yongjun Xu

Visual Autoregressive (VAR) modeling inefficiently applies a fixed computational depth to each position when generating high-resolution images. While existing methods accelerate inference by pruning tokens using frequency maps, their binary…

Computer Vision and Pattern Recognition · Computer Science 2026-04-21 Chunliang Li , Tianze Cao , Sanyuan Zhao