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We propose a general method for semantic representation of images and other data using progressive coding. Semantic coding allows for specific pieces of information to be selectively encoded into a set of measurements that can be highly…

Signal Processing · Electrical Eng. & Systems 2023-09-29 Eva Riherd , Raghu Mudumbai , Weiyu Xu

Text-to-video diffusion models have advanced video generation significantly. However, customizing these models to generate videos with tailored motions presents a substantial challenge. In specific, they encounter hurdles in (a) accurately…

Computer Vision and Pattern Recognition · Computer Science 2023-12-05 Hyeonho Jeong , Geon Yeong Park , Jong Chul Ye

The transmission of digital data is one of the principal tasks in modern wireless communication. Classically, the communication channel consists of one transmitter and one receiver; however, due to the constantly increasing demand in higher…

Information Theory · Computer Science 2015-01-08 Andrei Osipov

Satellite-terrestrial communications are severely constrained by high path loss, limited spectrum resources, and time-varying channel conditions, rendering conventional bit-level transmission schemes inefficient and fragile, particularly in…

Information Theory · Computer Science 2026-03-04 Jinghong Huang , Mengying Sun , Xiaodong Xu , Jianchi Zhu , Zechuan Fang , Jingxuan Zhang , Ruichen Zhang , Chen Dong , Ping Zhang , Dusit Niyato

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

Semantic communications focus on the transmission of semantic features. In this letter, we consider a task-oriented multi-user semantic communication system for multimodal data transmission. Particularly, partial users transmit images while…

Signal Processing · Electrical Eng. & Systems 2021-12-15 Huiqiang Xie , Zhijin Qin , Geoffrey Ye Li

Video captioning is a challenging task that captures different visual parts and describes them in sentences, for it requires visual and linguistic coherence. The attention mechanism in the current video captioning method learns to assign…

Computer Vision and Pattern Recognition · Computer Science 2021-10-19 Zhixin Sun , Xian Zhong , Shuqin Chen , Lin Li , Luo Zhong

The end-to-end image communication system has been widely studied in the academic community. The escalating demands on image communication systems in terms of data volume, environmental complexity, and task precision require enhanced…

Computer Vision and Pattern Recognition · Computer Science 2024-10-29 Senran Fan , Zhicheng Bao , Chen Dong , Haotai Liang , Xiaodong Xu , Ping Zhang

Recent developments in Deep learning based Joint Source-Channel Coding (DeepJSCC) have demonstrated impressive capabilities within wireless semantic communications system. However, existing DeepJSCC methodologies exhibit limited…

Image and Video Processing · Electrical Eng. & Systems 2024-11-18 Liang Zhang , Danlan Huang , Xinyi Zhou , Feng Ding , Sheng Wu , Zhiqing Wei

While semantic communication succeeds in efficiently transmitting due to the strong capability to extract the essential semantic information, it is still far from the intelligent or human-like communications. In this paper, we introduce an…

Signal Processing · Electrical Eng. & Systems 2023-03-23 Huiqiang Xie , Zhijin Qin , Geoffrey Ye Li

The multichannel virtual sensing active noise control (MVANC) methodology is an advanced approach that may provide a wide area of silence at specific virtual positions that are distant from the physical error microphones. Currently, there…

Signal Processing · Electrical Eng. & Systems 2024-05-20 Boxiang Wang

Pixel-level Video Understanding requires effectively integrating three-dimensional data in both spatial and temporal dimensions to learn accurate and stable semantic information from continuous frames. However, existing advanced models on…

Computer Vision and Pattern Recognition · Computer Science 2024-06-10 Chen Liang , Qiang Guo , Chongkai Yu , Chengjing Wu , Ting Liu , Luoqi Liu

Driven by the ultra-high throughput requirements of 6G, wireless communications are migrating to centimeter wave (cmWave) bands to overcome the limitations of current spectral resources. Massive multiple-input multiple-output (MIMO) and…

Signal Processing · Electrical Eng. & Systems 2026-05-20 Ziqi Han , Ziwei Wan , Hengwei Zhang , Keke Ying , Chabalala S. Chabalala , Dapeng Li , Wei Wang , Zhen Gao

Traditional image/video compression aims to reduce the transmission/storage cost with signal fidelity as high as possible. However, with the increasing demand for machine analysis and semantic monitoring in recent years, semantic fidelity…

Image and Video Processing · Electrical Eng. & Systems 2022-09-07 Jiguo Li , Chuanmin Jia , Xinfeng Zhang , Siwei Ma , Wen Gao

Continuous speech separation (CSS) aims to separate overlapping voices from a continuous influx of conversational audio containing an unknown number of utterances spoken by an unknown number of speakers. A common application scenario is…

Audio and Speech Processing · Electrical Eng. & Systems 2021-10-14 Zhuohuang Zhang , Takuya Yoshioka , Naoyuki Kanda , Zhuo Chen , Xiaofei Wang , Dongmei Wang , Sefik Emre Eskimez

The estimation of implicit cross-frame correspondences and the high computational cost have long been major challenges in video semantic segmentation (VSS) for driving scenes. Prior works utilize keyframes, feature propagation, or…

Computer Vision and Pattern Recognition · Computer Science 2024-04-29 Diandian Guo , Deng-Ping Fan , Tongyu Lu , Christos Sakaridis , Luc Van Gool

Sparse coding aims to model data vectors as sparse linear combinations of basis elements, but a majority of related studies are restricted to continuous data without spatial or temporal structure. A new model-based sparse coding (MSC)…

Methodology · Statistics 2021-08-24 Xin Xing , Rui Xie , Wenxuan Zhong

A wireless video transmission architecture relying on the emerging large-scale multiple-input--multiple-output (LS-MIMO) technique is proposed. Upon using the most advanced High Efficiency Video Coding (HEVC) (also known as H.265), we…

Information Theory · Computer Science 2016-07-12 Shaoshi Yang , Cheng Zhou , Tiejun Lv , Lajos Hanzo

Degraded broadcast channels (DBC) are a typical multiuser communication scenario, Semantic communications over DBC still lack in-depth research. In this paper, we design a semantic communications approach based on multi-user semantic fusion…

Information Theory · Computer Science 2024-06-18 Tong Wu , Zhiyong Chen , Meixia Tao , Bin Xia , Wenjun Zhang

Increasing the information capacity of communication channels is a pressing need, driven by growing data demands and the consequent impending data crunch with existing modulation schemes. In this regard, mode division multiplexing (MDM),…