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Document image enhancement is a fundamental and important stage for attaining the best performance in any document analysis assignment because there are many degradation situations that could harm document images, making it more difficult…

计算机视觉与模式识别 · 计算机科学 2023-12-08 Risab Biswas , Swalpa Kumar Roy , Umapada Pal

Tokenizer, serving as a translator to map the intricate visual data into a compact latent space, lies at the core of visual generative models. Based on the finding that existing tokenizers are tailored to image or video inputs, this paper…

计算机视觉与模式识别 · 计算机科学 2024-06-14 Junke Wang , Yi Jiang , Zehuan Yuan , Binyue Peng , Zuxuan Wu , Yu-Gang Jiang

Vision Transformers (ViT) have emerged as the de-facto choice for numerous industry grade vision solutions. But their inference cost can be prohibitive for many settings, as they compute self-attention in each layer which suffers from…

计算机视觉与模式识别 · 计算机科学 2024-07-18 Rajat Koner , Gagan Jain , Prateek Jain , Volker Tresp , Sujoy Paul

The quality of the latent space in visual tokenizers (e.g., VAEs) is crucial for modern generative models. However, the standard reconstruction-based training paradigm produces a latent space that is biased towards low-level information,…

计算机视觉与模式识别 · 计算机科学 2026-03-09 Jingfeng Yao , Yuda Song , Yucong Zhou , Xinggang Wang

Due to its deficiency in prior knowledge (inductive bias), Vision Transformer (ViT) requires pre-training on large-scale datasets to perform well. Moreover, the growing layers and parameters in ViT models impede their applicability to…

计算机视觉与模式识别 · 计算机科学 2024-07-17 Chenhao Xu , Chang-Tsun Li , Chee Peng Lim , Douglas Creighton

The recently proposed Visual image Transformers (ViT) with pure attention have achieved promising performance on image recognition tasks, such as image classification. However, the routine of the current ViT model is to maintain a…

计算机视觉与模式识别 · 计算机科学 2021-08-19 Zizheng Pan , Bohan Zhuang , Jing Liu , Haoyu He , Jianfei Cai

Autoregressive image generation aims to predict the next token based on previous ones. However, this process is challenged by the bidirectional dependencies inherent in conventional image tokenizations, which creates a fundamental…

计算机视觉与模式识别 · 计算机科学 2026-02-17 Pingyu Wu , Kai Zhu , Yu Liu , Longxiang Tang , Jian Yang , Yansong Peng , Wei Zhai , Yang Cao , Zheng-Jun Zha

In this work, we explore the largely unexplored direction of building a generalist image tokenizer directly on top of a frozen vision foundation model (VFM). To build this tokenizer, we utilize a frozen VFM as the encoder and introduce two…

计算机视觉与模式识别 · 计算机科学 2026-05-19 Anlin Zheng , Qi Han , Xin Wen , Chuofan Ma , Lanxi Gong , Gang Yu , Xiangyu Zhang , Xiaojuan Qi

Real-time transmission of visual data over wireless networks remains highly challenging, even when leveraging advanced deep neural networks, particularly under severe channel conditions such as limited bandwidth and weak connectivity. In…

信息论 · 计算机科学 2025-05-06 Zhenyu Liu , Yi Ma , Rahim Tafazolli

Recent advances in visual generation have emphasized the importance of Latent Generative Models (LGMs), which critically depend on effective visual tokenizers to bridge pixels and semantic representations. However, tokenizers constructed on…

Image tokenization has enabled major advances in autoregressive image generation by providing compressed, discrete representations that are more efficient to process than raw pixels. While traditional approaches use 2D grid tokenization,…

计算机视觉与模式识别 · 计算机科学 2025-06-05 Roman Bachmann , Jesse Allardice , David Mizrahi , Enrico Fini , Oğuzhan Fatih Kar , Elmira Amirloo , Alaaeldin El-Nouby , Amir Zamir , Afshin Dehghan

Video-to-Speech (VTS) generation aims to synthesize speech from a silent video without auditory signals. However, existing VTS methods disregard the hierarchical nature of speech, which spans coarse speaker-aware semantics to fine-grained…

声音 · 计算机科学 2026-04-20 Jiaxin Ye , Gaoxiang Cong , Chenhui Wang , Xin-Cheng Wen , Zhaoyang Li , Boyuan Cao , Hongming Shan

The accelerated MRI reconstruction process presents a challenging ill-posed inverse problem due to the extensive under-sampling in k-space. Recently, Vision Transformers (ViTs) have become the mainstream for this task, demonstrating…

图像与视频处理 · 电气工程与系统科学 2024-12-17 Yucong Meng , Zhiwei Yang , Yonghong Shi , Zhijian Song

Vision Transformer (ViT) models have made breakthroughs in image embedding extraction, which provide state-of-the-art performance in tasks such as zero-shot image classification. However, the models suffer from a high computational burden.…

计算机视觉与模式识别 · 计算机科学 2025-06-03 Takahiro Naruko , Hiroaki Akutsu

Unified Multimodal Large Language Models (MLLMs) require a visual representation that simultaneously supports high-fidelity reconstruction, complex semantic extraction, and generative suitability. However, existing visual tokenizers…

计算机视觉与模式识别 · 计算机科学 2026-03-12 Shaobin Zhuang , Yuang Ai , Jiaming Han , Weijia Mao , Xiaohui Li , Fangyikang Wang , Xiao Wang , Yan Li , Shanchuan Lin , Kun Xu , Zhenheng Yang , Huaibo Huang , Xiangyu Yue , Hao Chen , Yali Wang

Vision Transformers (ViTs) have achieved remarkable success in various computer vision tasks. However, ViTs have a huge computational cost due to their inherent reliance on multi-head self-attention (MHSA), prompting efforts to accelerate…

计算机视觉与模式识别 · 计算机科学 2024-12-24 Seungdong Yoa , Seungjun Lee , Hyeseung Cho , Bumsoo Kim , Woohyung Lim

Vision Transformers (ViTs) have achieved strong performance in visual recognition, yet their deployment in resource-constrained industrial environments remains limited. Some main challenges are their high computational cost, memory…

计算机视觉与模式识别 · 计算机科学 2026-05-05 Phat Nguyen , Xue Geng , Kaixin Xu , Wang Zhe , Xulei Yang , Ngai-Man Cheung

We attempt to reduce the computational costs in vision transformers (ViTs), which increase quadratically in the token number. We present a novel training paradigm that trains only one ViT model at a time, but is capable of providing…

计算机视觉与模式识别 · 计算机科学 2023-07-20 Mingbao Lin , Mengzhao Chen , Yuxin Zhang , Chunhua Shen , Rongrong Ji , Liujuan Cao

Multimodal Large Language Models (MLLMs) have demonstrated exceptional capabilities in processing vision-language tasks. One of the crux of MLLMs lies in vision tokenization, which involves efficiently transforming input visual signals into…

计算机视觉与模式识别 · 计算机科学 2025-02-27 Shengqiong Wu , Hao Fei , Xiangtai Li , Jiayi Ji , Hanwang Zhang , Tat-Seng Chua , Shuicheng Yan

Image tokenizers form the foundation of modern text-to-image generative models but are notoriously difficult to train. Furthermore, most existing text-to-image models rely on large-scale, high-quality private datasets, making them…

计算机视觉与模式识别 · 计算机科学 2025-08-05 Dongwon Kim , Ju He , Qihang Yu , Chenglin Yang , Xiaohui Shen , Suha Kwak , Liang-Chieh Chen