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Existing learning-based stereo image codec adopt sophisticated transformation with simple entropy models derived from single image codecs to encode latent representations. However, those entropy models struggle to effectively capture the…

图像与视频处理 · 电气工程与系统科学 2025-02-11 Xinjie Zhang , Shenyuan Gao , Zhening Liu , Jiawei Shao , Xingtong Ge , Dailan He , Tongda Xu , Yan Wang , Jun Zhang

Semantic communication, augmented by knowledge bases (KBs), offers substantial reductions in transmission overhead and resilience to errors. However, existing methods predominantly rely on end-to-end training to construct KBs, often failing…

图像与视频处理 · 电气工程与系统科学 2024-10-25 Peiwen Jiang , Chao-Kai Wen , Shi Jin , Jun Zhang

Recent advancements in deep learning-based image compression are notable. However, prevalent schemes that employ a serial context-adaptive entropy model to enhance rate-distortion (R-D) performance are markedly slow. Furthermore, the…

应用统计 · 统计学 2024-03-25 Haisheng Fu , Feng Liang , Jie Liang , Zhenman Fang , Guohe Zhang , Jingning Han

This paper studies secrecy transmission with the aid of a group of wireless energy harvesting (WEH)-enabled amplify-and-forward (AF) relays performing cooperative jamming (CJ) and relaying. The source node in the network does simultaneous…

信息论 · 计算机科学 2015-11-13 Hong Xing , Kai-Kit Wong , Arumugam Nallanathan , Rui Zhang

Traditional feature extraction and projection techniques, such as Principal Component Analysis, struggle to adequately represent X-Ray Transmission (XRT) Multi-Energy (ME) images, limiting the performance of neural networks in…

计算机视觉与模式识别 · 计算机科学 2025-11-19 Fethi Harkat , Guillaume Gey , Valérie Perrier , Kévin Polisano , Tiphaine Deuberet

The explosion of data has resulted in more and more associated text being transmitted along with images. Inspired by from distributed source coding, many works utilize image side information to enhance image compression. However, existing…

计算机视觉与模式识别 · 计算机科学 2023-11-29 Shiyu Qin , Bin Chen , Yujun Huang , Baoyi An , Tao Dai , Shu-Tao Xia

Previous work on cooperative communications has concentrated primarily on the diversity benefits of such techniques. This paper, instead, considers the multiplexing benefits of cooperative communications. First, a new interpretation on the…

信息论 · 计算机科学 2009-03-16 Yijia , Fan , Chao Wang , H. Vincent Poor , John S. Thompson

In energy harvesting (EH) relay networks, the coherent communication requires accurate estima- tion/tracking of the instantaneous channel state information (CSI) which consumes extra power. As a remedy, we propose two noncoherent EH…

信息论 · 计算机科学 2015-06-15 Peng Liu , Saeed Gazor , Il-Min Kim , Dong In Kim

Semantic communication (SemCom) aims to achieve high fidelity information delivery under low communication consumption by only guaranteeing semantic accuracy. Nevertheless, semantic communication still suffers from unexpected channel…

系统与控制 · 电气工程与系统科学 2024-03-26 Fei Ni , Rongpeng Li , Zhifeng Zhao , Honggang Zhang

Video conferencing has become a popular mode of meeting even if it consumes considerable communication resources. Conventional video compression causes resolution reduction under limited bandwidth. Semantic video conferencing maintains high…

图像与视频处理 · 电气工程与系统科学 2024-10-28 Peiwen Jiang , Chao-Kai Wen , Shi Jin , Geoffrey Ye Li

Conventional image compression methods typically aim at pixel-level consistency while ignoring the performance of downstream AI tasks.To solve this problem, this paper proposes a Semantic-Assisted Image Compression method (SAIC), which can…

计算机视觉与模式识别 · 计算机科学 2022-02-01 Qizheng Sun , Caili Guo , Yang Yang , Jiujiu Chen , Xijun Xue

Obtaining high-resolution hyperspectral images (HR-HSI) is costly and data-intensive, making it necessary to fuse low-resolution hyperspectral images (LR-HSI) with high-resolution RGB images (HR-RGB) for practical applications. However,…

图像与视频处理 · 电气工程与系统科学 2025-03-25 Lei Guo , Wei Chen , Yuxuan Sun , Bo Ai , Nikolaos Pappas , Tony Quek

We propose to employ a saliency-driven hierarchical neural image compression network for a machine-to-machine communication scenario following the compress-then-analyze paradigm. By that, different areas of the image are coded at different…

图像与视频处理 · 电气工程与系统科学 2023-02-28 Kristian Fischer , Fabian Brand , Christian Blum , André Kaup

We study the collaborative image retrieval problem at the wireless edge, where multiple edge devices capture images of the same object from different angles and locations, which are then used jointly to retrieve similar images at the edge…

图像与视频处理 · 电气工程与系统科学 2023-02-14 Wing Fei Lo , Nitish Mital , Haotian Wu , Deniz Gündüz

Multi-agent collaboration enhances the perception capabilities of individual agents through information sharing. However, in real-world applications, differences in sensors and models across heterogeneous agents inevitably lead to domain…

计算机视觉与模式识别 · 计算机科学 2025-11-04 Junfei Zhou , Penglin Dai , Quanmin Wei , Bingyi Liu , Xiao Wu , Jianping Wang

Current learned image compression models typically exhibit high complexity, which demands significant computational resources. To overcome these challenges, we propose an innovative approach that employs hierarchical feature extraction…

图像与视频处理 · 电气工程与系统科学 2025-05-01 Ayman A. Ameen , Thomas Richter , André Kaup

We introduce a simple and efficient lossless image compression algorithm. We store a low resolution version of an image as raw pixels, followed by several iterations of lossless super-resolution. For lossless super-resolution, we predict…

图像与视频处理 · 电气工程与系统科学 2020-04-07 Sheng Cao , Chao-Yuan Wu , Philipp Krähenbühl

Recently, semantic communication has been investigated to boost the performance of end-to-end image transmission systems. However, existing semantic approaches are generally based on deep learning and belong to lossy transmission.…

信号处理 · 电气工程与系统科学 2023-08-23 Guangyi Zhang , Qiyu Hu , Yunlong Cai , Guanding Yu

Accurate and stable feature matching is critical for computer vision tasks, particularly in applications such as Simultaneous Localization and Mapping (SLAM). While recent learning-based feature matching methods have demonstrated promising…

机器人学 · 计算机科学 2025-04-08 Yuqing Wang , Yan Wang , Hailiang Tang , Xiaoji Niu

We propose a novel neural waveform compression method to catalyze emerging speech semantic communications. By introducing nonlinear transform and variational modeling, we effectively capture the dependencies within speech frames and…

声音 · 计算机科学 2022-12-14 Shengshi Yao , Zixuan Xiao , Sixian Wang , Jincheng Dai , Kai Niu , Ping Zhang