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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

Semantic communication has emerged as a promising paradigm for next-generation wireless systems, improving the communication efficiency by transmitting high-level semantic features. However, reliance on unimodal representations can degrade…

Signal Processing · Electrical Eng. & Systems 2025-09-11 Haoran Chang , Mingzhe Chen , Huaxia Wang , Qianqian Zhang

Semantic segmentation based on sparse annotation has advanced in recent years. It labels only part of each object in the image, leaving the remainder unlabeled. Most of the existing approaches are time-consuming and often necessitate a…

Computer Vision and Pattern Recognition · Computer Science 2023-02-28 Hui Su , Yue Ye , Wei Hua , Lechao Cheng , Mingli Song

As communication systems transition from symbol transmission to conveying meaningful information, sixth-generation (6G) networks emphasize semantic communication. This approach prioritizes high-level semantic information, improving…

Signal Processing · Electrical Eng. & Systems 2025-01-27 Zhe Xiang , Fei Yu , Quan Deng , Yuandi Li , Zhiguo Wan

Deep learning based image compressed sensing (CS) has achieved great success. However, existing CS systems mainly adopt a fixed measurement matrix to images, ignoring the fact the optimal measurement numbers and bases are different for…

Image and Video Processing · Electrical Eng. & Systems 2023-07-12 Bowen Zhang , Zhijin Qin , Geoffrey Ye Li

Semantic communication has emerged as new paradigm shifts in 6G from the conventional syntax-oriented communications. Recently, the wireless broadcast technology has been introduced to support semantic communication system toward higher…

Signal Processing · Electrical Eng. & Systems 2024-02-01 Mingze Gong , Shuoyao Wang , Fangwei Ye , Suzhi Bi

Sensing and communication are fundamental enablers of next-generation networks. While communication technologies have advanced significantly, sensing remains limited to conventional parameter estimation and is far from fully explored.…

Signal Processing · Electrical Eng. & Systems 2026-04-01 Xiaoqi Zhang , J. Andrew Zhang , Chang Liu , Weijie Yuan , Geoffrey Ye Li , Moeness G. Amin

Traditional joint source-channel coding employs static learned semantic representations that cannot dynamically adapt to evolving source distributions. Shared semantic memories between transmitter and receiver can potentially enable…

Signal Processing · Electrical Eng. & Systems 2025-11-14 Karim Nasreddine , Christo Kurisummoottil Thomas , Walid Saad

Attention mechanism plays a more and more important role in point cloud analysis and channel attention is one of the hotspots. With so much channel information, it is difficult for neural networks to screen useful channel information. Thus,…

Computer Vision and Pattern Recognition · Computer Science 2021-12-07 Guoquan Xu , Hezhi Cao , Yifan Zhang , Jianwei Wan , Ke Xu , Yanxin Ma

Image segmentation is often ambiguous at the level of individual image patches and requires contextual information to reach label consensus. In this paper we introduce Segmenter, a transformer model for semantic segmentation. In contrast to…

Computer Vision and Pattern Recognition · Computer Science 2021-09-03 Robin Strudel , Ricardo Garcia , Ivan Laptev , Cordelia Schmid

Text-image cross-modal retrieval is a challenging task in the field of language and vision. Most previous approaches independently embed images and sentences into a joint embedding space and compare their similarities. However, previous…

Computer Vision and Pattern Recognition · Computer Science 2019-09-13 Zihao Wang , Xihui Liu , Hongsheng Li , Lu Sheng , Junjie Yan , Xiaogang Wang , Jing Shao

Existing deep learning-enabled semantic communication systems often rely on shared background knowledge between the transmitter and receiver that includes empirical data and their associated semantic information. In practice, the semantic…

Information Theory · Computer Science 2022-10-19 Hongwei Zhang , Shuo Shao , Meixia Tao , Xiaoyan Bi , Khaled B. Letaief

We present cross-view transformers, an efficient attention-based model for map-view semantic segmentation from multiple cameras. Our architecture implicitly learns a mapping from individual camera views into a canonical map-view…

Computer Vision and Pattern Recognition · Computer Science 2022-05-06 Brady Zhou , Philipp Krähenbühl

Discrete image tokenizers have emerged as a key component of modern vision and multimodal systems, providing a sequential interface for transformer-based architectures. However, most existing approaches remain primarily optimized for…

Computer Vision and Pattern Recognition · Computer Science 2026-02-25 Aram Davtyan , Yusuf Sahin , Yasaman Haghighi , Sebastian Stapf , Pablo Acuaviva , Alexandre Alahi , Paolo Favaro

Transformer is a new kind of neural architecture which encodes the input data as powerful features via the attention mechanism. Basically, the visual transformers first divide the input images into several local patches and then calculate…

Computer Vision and Pattern Recognition · Computer Science 2021-10-27 Kai Han , An Xiao , Enhua Wu , Jianyuan Guo , Chunjing Xu , Yunhe Wang

Deep learning (DL) based semantic communication methods have been explored for the efficient transmission of images, text, and speech in recent years. In contrast to traditional wireless communication methods that focus on the transmission…

Audio and Speech Processing · Electrical Eng. & Systems 2022-05-26 Tianxiao Han , Qianqian Yang , Zhiguo Shi , Shibo He , Zhaoyang Zhang

In this paper, we aim to redesign the vision Transformer (ViT) as a new backbone to realize semantic image transmission, termed wireless image transmission transformer (WITT). Previous works build upon convolutional neural networks (CNNs),…

Computer Vision and Pattern Recognition · Computer Science 2022-11-03 Ke Yang , Sixian Wang , Jincheng Dai , Kailin Tan , Kai Niu , Ping Zhang

Recently, learned image compression methods have outperformed traditional hand-crafted ones including BPG. One of the keys to this success is learned entropy models that estimate the probability distribution of the quantized latent…

Image and Video Processing · Electrical Eng. & Systems 2022-07-22 Jun-Hyuk Kim , Byeongho Heo , Jong-Seok Lee

Recent advances in Vision Transformers (ViTs) have significantly advanced semantic segmentation performance. However, their adaptation to new target domains remains challenged by distribution shifts, which often disrupt global attention…

Computer Vision and Pattern Recognition · Computer Science 2025-10-16 Enming Zhang , Zhengyu Li , Yanru Wu , Jingge Wang , Yang Tan , Guan Wang , Yang Li , Xiaoping Zhang

Semantic communication enhances transmission efficiency by conveying semantic information rather than raw input symbol sequences. Task-oriented semantic communication is a variant that tries to retains only task-specific information, thus…

Cryptography and Security · Computer Science 2025-10-06 Xuesong Wang , Mo Li , Xingyan Shi , Zhaoqian Liu , Shenghao Yang