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The Space-Air-Ground-Sea integrated network calls for more robust and secure transmission techniques against jamming. In this paper, we propose a textual semantic transmission framework for robust transmission, which utilizes the advanced…

Computation and Language · Computer Science 2023-07-25 Shicong Liu , Zhen Gao , Gaojie Chen , Yu Su , Lu Peng

Despite recent progress, vision-language encoders struggle with two core limitations: (1) weak alignment between language and dense vision features, which hurts tasks like open-vocabulary semantic segmentation; and (2) high token counts for…

Computer Vision and Pattern Recognition · Computer Science 2026-04-21 Savya Khosla , Sethuraman T , Aryan Chadha , Alex Schwing , Derek Hoiem

In recent years, general visual foundation models (VFMs) have witnessed increasing adoption, particularly as image encoders for popular multi-modal large language models (MLLMs). However, without semantically fine-grained supervision, these…

Computer Vision and Pattern Recognition · Computer Science 2025-03-18 Tongkun Guan , Zining Wang , Pei Fu , Zhengtao Guo , Wei Shen , Kai Zhou , Tiezhu Yue , Chen Duan , Hao Sun , Qianyi Jiang , Junfeng Luo , Xiaokang Yang

Token-based semantic communication is promising for future wireless networks, as it can compact semantic tokens under very limited channel capacity. However, harsh wireless channels often cause missing tokens, leading to severe distortion…

Signal Processing · Electrical Eng. & Systems 2026-04-15 Jingzhi Hu , Geoffrey Ye Li

Integrating vision models into large language models (LLMs) has sparked significant interest in creating vision-language foundation models, especially for video understanding. Recent methods often utilize memory banks to handle untrimmed…

Computer Vision and Pattern Recognition · Computer Science 2025-04-09 Sakib Reza , Xiyun Song , Heather Yu , Zongfang Lin , Mohsen Moghaddam , Octavia Camps

Video large language models (VideoLLM) excel at video understanding, but face efficiency challenges due to the quadratic complexity of abundant visual tokens. Our systematic analysis of token compression methods for VideoLLMs reveals two…

Computer Vision and Pattern Recognition · Computer Science 2025-11-19 Xuyang Liu , Yiyu Wang , Junpeng Ma , Linfeng Zhang

Token-based video representation has emerged as a promising approach for enabling large language models (LLMs) to interpret video content. However, existing token reduction techniques, such as pruning and merging, often disrupt essential…

Computer Vision and Pattern Recognition · Computer Science 2025-09-30 Haichao Zhang , Yun Fu

Large Vision-Language Models (LVLMs) encode visual inputs as dense sequences of patch-level tokens to capture fine-grained semantics. These visual tokens often outnumber their textual counterparts by a large margin, leading to substantial…

Computer Vision and Pattern Recognition · Computer Science 2026-03-03 Rui Xu , Yunke Wang , Yong Luo , Bo Du

Video Large Language Models (VLLMs) demonstrate strong video understanding but suffer from inefficiency due to redundant visual tokens. Existing pruning primary targets intra-frame spatial redundancy or prunes inside the LLM with…

Computer Vision and Pattern Recognition · Computer Science 2026-04-13 Jinlong Li , Liyuan Jiang , Haonan Zhang , Nicu Sebe

Recently, the ever-increasing demand for bandwidth in multi-modal communication systems requires a paradigm shift. Powered by deep learning, semantic communications are applied to multi-modal scenarios to boost communication efficiency and…

Signal Processing · Electrical Eng. & Systems 2023-05-19 Yangshuo He , Guanding Yu , Yunlong Cai

Accurate and efficient discrete video tokenization is essential for long video sequences processing. Yet, the inherent complexity and variable information density of videos present a significant bottleneck for current tokenizers, which…

Computer Vision and Pattern Recognition · Computer Science 2026-03-24 Haotian Ye , Qiyuan He , Jiaqi Han , Puheng Li , Jiaojiao Fan , Zekun Hao , Fitsum Reda , Yogesh Balaji , Huayu Chen , Sheng Liu , Angela Yao , James Zou , Stefano Ermon , Haoxiang Wang , Ming-Yu Liu

Recent advancements in large video-language models have revolutionized video understanding tasks. However, their efficiency is significantly constrained by processing high volumes of visual tokens. Existing token compression strategies…

Computer Vision and Pattern Recognition · Computer Science 2025-09-10 Xiangchen Wang , Jinrui Zhang , Teng Wang , Haigang Zhang , Feng Zheng

Pioneering token-based works such as Chameleon and Emu3 have established a foundation for multimodal unification but face challenges of high training computational overhead and limited comprehension performance due to a lack of high-level…

Computer Vision and Pattern Recognition · Computer Science 2025-08-18 Haokun Lin , Teng Wang , Yixiao Ge , Yuying Ge , Zhichao Lu , Ying Wei , Qingfu Zhang , Zhenan Sun , Ying Shan

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

In light of recent advances in multimodal Large Language Models (LLMs), there is increasing attention to scaling them from image-text data to more informative real-world videos. Compared to static images, video poses unique challenges for…

Computer Vision and Pattern Recognition · Computer Science 2024-06-04 Yang Jin , Zhicheng Sun , Kun Xu , Kun Xu , Liwei Chen , Hao Jiang , Quzhe Huang , Chengru Song , Yuliang Liu , Di Zhang , Yang Song , Kun Gai , Yadong Mu

Automatic generation of high-quality commit messages for code commits can substantially facilitate software developers' works and coordination. However, the semantic gap between source code and natural language poses a major challenge for…

Computation and Language · Computer Science 2021-06-22 Lun Yiu Nie , Cuiyun Gao , Zhicong Zhong , Wai Lam , Yang Liu , Zenglin Xu

The rapid advancement in large foundation models is propelling the paradigm shifts across various industries. One significant change is that agents, instead of traditional machines or humans, will be the primary participants in the future…

Signal Processing · Electrical Eng. & Systems 2025-07-30 Zhuoran Xiao , Chenhui Ye , Yijia Feng , Yunbo Hu , Tianyu Jiao , Liyu Cai , Guangyi Liu

Semantic communication (SemCom) emerges as a transformative paradigm for traffic-intensive visual data transmission, shifting focus from raw data to meaningful content transmission and relieving the increasing pressure on communication…

Image and Video Processing · Electrical Eng. & Systems 2026-02-02 Runze Cheng , Yao Sun , Ahmad Taha , Xuesong Liu , David Flynn , Muhammad Ali Imran

While text-to-image (T2I) generation models have achieved remarkable progress in recent years, existing evaluation methodologies for vision-language alignment still struggle with the fine-grained semantic matching. Current approaches based…

Computer Vision and Pattern Recognition · Computer Science 2025-04-11 Zijian Zhang , Xuhui Zheng , Xuecheng Wu , Chong Peng , Xuezhi Cao

We present TokenFlow, a novel unified image tokenizer that bridges the long-standing gap between multimodal understanding and generation. Prior research attempt to employ a single reconstruction-targeted Vector Quantization (VQ) encoder for…

Computer Vision and Pattern Recognition · Computer Science 2025-08-08 Liao Qu , Huichao Zhang , Yiheng Liu , Xu Wang , Yi Jiang , Yiming Gao , Hu Ye , Daniel K. Du , Zehuan Yuan , Xinglong Wu