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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

Tokenizer is a crucial component for both visual understanding and generation. To advance toward the ultimate goal of universal modeling, recent research has focused on developing a unified tokenizer. However, existing tokenizers face a…

Computer Vision and Pattern Recognition · Computer Science 2026-03-03 Zhengrong Yue , Haiyu Zhang , Xiangyu Zeng , Boyu Chen , Chenting Wang , Shaobin Zhuang , Lu Dong , Yi Wang , Limin Wang , Yali Wang

Unified speech foundation models require a holistic tokenization space that is both learnable by language models and decodable into high-quality waveforms. Existing speech tokenizers, however, often fail to satisfy these requirements…

Sound · Computer Science 2026-05-29 Bohan Li , Shi Lian , Hankun Wang , Yiwei Guo , Yu Xi , Zhihan Li , Da Zheng , Colin Zhang , Kai Yu

This paper presents a multimodal framework that attempts to unify visual understanding and generation within a shared discrete semantic representation. At its core is the Text-Aligned Tokenizer (TA-Tok), which converts images into discrete…

Computer Vision and Pattern Recognition · Computer Science 2025-06-24 Jiaming Han , Hao Chen , Yang Zhao , Hanyu Wang , Qi Zhao , Ziyan Yang , Hao He , Xiangyu Yue , Lu Jiang

Texture recognition has recently been dominated by ImageNet-pre-trained deep Convolutional Neural Networks (CNNs), with specialized modifications and feature engineering required to achieve state-of-the-art (SOTA) performance. However,…

Computer Vision and Pattern Recognition · Computer Science 2025-03-11 Leonardo Scabini , Kallil M. Zielinski , Emir Konuk , Ricardo T. Fares , Lucas C. Ribas , Kevin Smith , Odemir M. Bruno

Deep neural networks, while achieving remarkable success across diverse tasks, demand significant resources, including computation, GPU memory, bandwidth, storage, and energy. Network quantization, as a standard compression and acceleration…

Computer Vision and Pattern Recognition · Computer Science 2025-07-09 Minghao Fu , Hao Yu , Jie Shao , Junjie Zhou , Ke Zhu , Jianxin Wu

Learned image compression has a problem of non-bit-exact reconstruction due to different calculations of floating point arithmetic on different devices. This paper shows a method to achieve a deterministic reconstructed image by quantizing…

Image and Video Processing · Electrical Eng. & Systems 2024-01-12 Esin Koyuncu , Timofey Solovyev , Johannes Sauer , Elena Alshina , André Kaup

Recent advances in auto-regressive transformers have achieved remarkable success in generative modeling. However, text-to-3D generation remains challenging, primarily due to bottlenecks in learning discrete 3D representations. Specifically,…

Computer Vision and Pattern Recognition · Computer Science 2026-02-17 Zongcheng Han , Dongyan Cao , Haoran Sun , Yu Hong

Although two-stage Vector Quantized (VQ) generative models allow for synthesizing high-fidelity and high-resolution images, their quantization operator encodes similar patches within an image into the same index, resulting in a repeated…

Computer Vision and Pattern Recognition · Computer Science 2022-09-20 Chuanxia Zheng , Long Tung Vuong , Jianfei Cai , Dinh Phung

The unification of understanding and generation within a single multi-modal large model (MLLM) remains one significant challenge, largely due to the dichotomy between continuous and discrete visual tokenizations. Continuous tokenizer (CT)…

Computer Vision and Pattern Recognition · Computer Science 2025-11-04 Yizhu Chen , Chen Ju , Zhicheng Wang , Shuai Xiao , Xu Chen , Jinsong Lan , Xiaoyong Zhu , Ying Chen

Pixel-wise capabilities are essential for building interactive intelligent systems. However, pixel-wise multi-modal LLMs (MLLMs) remain difficult to scale due to complex region-level encoders, specialized segmentation decoders, and…

Computer Vision and Pattern Recognition · Computer Science 2026-01-23 Yikang Zhou , Tao Zhang , Dengxian Gong , Yuanzheng Wu , Ye Tian , Haochen Wang , Haobo Yuan , Jiacong Wang , Lu Qi , Hao Fei , Anran Wang , Zhuochen Wang , Yujing Wang , Cheng Chen , Shunping Ji , Xiangtai Li

Masked image modeling (MIM) has demonstrated impressive results in self-supervised representation learning by recovering corrupted image patches. However, most existing studies operate on low-level image pixels, which hinders the…

Computer Vision and Pattern Recognition · Computer Science 2022-10-04 Zhiliang Peng , Li Dong , Hangbo Bao , Qixiang Ye , Furu Wei

We develop an approach for text-to-image generation that embraces additional retrieval images, driven by a combination of implicit visual guidance loss and generative objectives. Unlike most existing text-to-image generation methods which…

Computer Vision and Pattern Recognition · Computer Science 2022-08-19 Xin Yuan , Zhe Lin , Jason Kuen , Jianming Zhang , John Collomosse

Data-Free Quantization (DFQ) enables the quantization of Vision Transformers (ViTs) without requiring access to data, allowing for the deployment of ViTs on devices with limited resources. In DFQ, the quantization model must be calibrated…

Computer Vision and Pattern Recognition · Computer Science 2025-07-22 Yujia Tong , Jingling Yuan , Tian Zhang , Jianquan Liu , Chuang Hu

The rapid development of generative models has made it increasingly crucial to develop detectors that can reliably detect synthetic images. Although most of the work has now focused on cross-generator generalization, we argue that this…

Computer Vision and Pattern Recognition · Computer Science 2025-10-08 Amirtaha Amanzadi , Zahra Dehghanian , Hamid Beigy , Hamid R. Rabiee

Coarse-guided visual generation, which synthesizes fine visual samples from degraded or low-fidelity coarse references, is essential for various real-world applications. While training-based approaches are effective, they are inherently…

Computer Vision and Pattern Recognition · Computer Science 2026-03-31 Yanghao Wang , Ziqi Jiang , Zhen Wang , Long Chen

Visual instruction tuning aims to enable large language models to comprehend the visual world, with a pivotal challenge lying in establishing an effective vision-to-language projection. However, existing methods often grapple with the…

Computer Vision and Pattern Recognition · Computer Science 2025-05-23 Bonan li , Zicheng Zhang , Songhua Liu , Weihao Yu , Xinchao Wang

Autoregressive image modeling relies on visual tokenizers to compress images into compact latent representations. We design an end-to-end training pipeline that jointly optimizes reconstruction and generation, enabling direct supervision…

Computer Vision and Pattern Recognition · Computer Science 2026-05-05 Wenda Chu , Bingliang Zhang , Jiaqi Han , Yizhuo Li , Linjie Yang , Yisong Yue , Qiushan Guo

Generative transformers have experienced rapid popularity growth in the computer vision community in synthesizing high-fidelity and high-resolution images. The best generative transformer models so far, however, still treat an image naively…

Computer Vision and Pattern Recognition · Computer Science 2022-02-10 Huiwen Chang , Han Zhang , Lu Jiang , Ce Liu , William T. Freeman

Pixel-space diffusion has recently re-emerged as a strong alternative to latent diffusion, enabling high-quality generation without pretrained autoencoders. However, standard pixel-space diffusion models receive relatively weak semantic…

Computer Vision and Pattern Recognition · Computer Science 2026-03-18 Han Lin , Xichen Pan , Zun Wang , Yue Zhang , Chu Wang , Jaemin Cho , Mohit Bansal