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Deep neural networks have demonstrated highly competitive performance in super-resolution (SR) for natural images by learning mappings from low-resolution (LR) to high-resolution (HR) images. However, hyperspectral super-resolution remains…

图像与视频处理 · 电气工程与系统科学 2025-05-02 Usman Muhammad , Jorma Laaksonen , Lyudmila Mihaylova

Conventional communication systems, including both separation-based coding and AI-driven joint source-channel coding (JSCC), are largely guided by Shannon's rate-distortion theory. However, relying on generic distortion metrics fails to…

信息论 · 计算机科学 2026-01-21 Tong Wu , Zhiyong Chen , Guo Lu , Li Song , Feng Yang , Meixia Tao , Wenjun Zhang

Semantic communication has gained significant attention from researchers as a promising technique to replace conventional communication in the next generation of communication systems, primarily due to its ability to reduce communication…

信息论 · 计算机科学 2025-02-07 Loc X. Nguyen , Ye Lin Tun , Yan Kyaw Tun , Minh N. H. Nguyen , Chaoning Zhang , Zhu Han , Choong Seon Hong

The emerging Learned Compression (LC) replaces the traditional codec modules with Deep Neural Networks (DNN), which are trained end-to-end for rate-distortion performance. This approach is considered as the future of image/video…

图像与视频处理 · 电气工程与系统科学 2024-07-08 Farhad Pakdaman , Moncef Gabbouj

In this paper, we propose a new wireless video communication scheme to achieve high-efficiency video transmission over noisy channels. It exploits the idea of model division multiple access (MDMA) and extracts common semantic features…

多媒体 · 计算机科学 2023-05-26 Zhicheng Bao , Haotai Liang , Chen Dong , Xiaodong Xu , Geng Liu

The acquisition of Downlink (DL) channel state information at the transmitter (CSIT) is known to be a challenging task in multiuser massive MIMO systems when uplink/downlink channel reciprocity does not hold (e.g., in frequency division…

信息论 · 计算机科学 2025-06-13 Yi Song , Tianyu Yang , Mahdi Barzegar Khalilsarai , Giuseppe Caire

In this paper, we propose a learned scalable/progressive image compression scheme based on deep neural networks (DNN), named Bidirectional Context Disentanglement Network (BCD-Net). For learning hierarchical representations, we first adopt…

多媒体 · 计算机科学 2019-04-23 Zhizheng Zhang , Zhibo Chen , Jianxin Lin , Weiping Li

Compared to CNN-based methods, Transformer-based methods achieve impressive image restoration outcomes due to their abilities to model remote dependencies. However, how to apply Transformer-based methods to the field of blind…

计算机视觉与模式识别 · 计算机科学 2023-10-09 Qingguo Liu , Pan Gao , Kang Han , Ningzhong Liu , Wei Xiang

Single-image super-resolution (SISR) has achieved significant breakthroughs with the development of deep learning. However, these methods are difficult to be applied in real-world scenarios since they are inevitably accompanied by the…

计算机视觉与模式识别 · 计算机科学 2022-04-29 Guangwei Gao , Zhengxue Wang , Juncheng Li , Wenjie Li , Yi Yu , Tieyong Zeng

Real-world image denoising is a practical image restoration problem that aims to obtain clean images from in-the-wild noisy inputs. Recently, the Vision Transformer (ViT) has exhibited a strong ability to capture long-range dependencies,…

计算机视觉与模式识别 · 计算机科学 2022-09-14 Hao Li , Zhijing Yang , Xiaobin Hong , Ziying Zhao , Junyang Chen , Yukai Shi , Jinshan Pan

Quantizing deep networks with adaptive bit-widths is a promising technique for efficient inference across many devices and resource constraints. In contrast to static methods that repeat the quantization process and train different models…

计算机视觉与模式识别 · 计算机科学 2021-09-20 Ximeng Sun , Rameswar Panda , Chun-Fu Chen , Naigang Wang , Bowen Pan , Kailash Gopalakrishnan , Aude Oliva , Rogerio Feris , Kate Saenko

Using single-pixel detection, the end-to-end neural network that jointly optimizes both encoding and decoding enables high-precision imaging and high-level semantic sensing. However, for varied sampling rates, the large-scale network…

图像与视频处理 · 电气工程与系统科学 2022-01-11 Xinrui Zhan , Liheng Bian , Chunli Zhu , Jun Zhang

Limited view tomographic reconstruction aims to reconstruct a tomographic image from a limited number of sinogram or projection views arising from sparse view or limited angle acquisitions that reduce radiation dose or shorten scanning…

图像与视频处理 · 电气工程与系统科学 2020-09-04 Bo Zhou , S. Kevin Zhou , James S. Duncan , Chi Liu

Portable, low-field Magnetic Resonance Imaging (MRI) scanners are increasingly being deployed in clinical settings. However, key barriers to their widespread use include low signal-to-noise ratio (SNR), generally low image quality, and long…

Discrete Wavelet Transform (DWT) has been widely explored to enhance the performance of image superresolution (SR). Despite some DWT-based methods improving SR by capturing fine-grained frequency signals, most existing approaches neglect…

计算机视觉与模式识别 · 计算机科学 2025-11-05 Peng Du , Hui Li , Han Xu , Paul Barom Jeon , Dongwook Lee , Daehyun Ji , Ran Yang , Feng Zhu

In this paper, we design a deep learning-based convolutional autoencoder for channel coding and modulation. The objective is to develop an adaptive scheme capable of operating at various signal-to-noise ratios (SNR)s without the need for…

信号处理 · 电气工程与系统科学 2025-07-01 Ahmad Abdel-Qader , Anas Chaaban , Mohamed S. Shehata

Existing leading methods for spectral reconstruction (SR) focus on designing deeper or wider convolutional neural networks (CNNs) to learn the end-to-end mapping from the RGB image to its hyperspectral image (HSI). These CNN-based methods…

计算机视觉与模式识别 · 计算机科学 2022-04-19 Yuanhao Cai , Jing Lin , Zudi Lin , Haoqian Wang , Yulun Zhang , Hanspeter Pfister , Radu Timofte , Luc Van Gool

Pansharpening aims to fuse high-resolution panchromatic (PAN) images with low-resolution multispectral (LRMS) images to generate high-resolution multispectral (HRMS) images. Although deep learning-based methods have achieved promising…

计算机视觉与模式识别 · 计算机科学 2025-07-29 Zeyu Xia , Chenxi Sun , Tianyu Xin , Yubo Zeng , Haoyu Chen , Liang-Jian Deng

In wireless communications, efficient image transmission must balance reliability, throughput, and latency, especially under dynamic channel conditions. This paper presents an adaptive and progressive pipeline for learned image compression…

信号处理 · 电气工程与系统科学 2024-11-19 Mostafa Naseri , Pooya Ashtari , Mohamed Seif , Eli De Poorter , H. Vincent Poor , Adnan Shahid

This paper proposes a deep learning-based beamforming design framework that directly maps a target beam pattern to optimal beamforming vectors across multiple antenna array architectures, including digital, analog, and hybrid beamforming.…

信号处理 · 电气工程与系统科学 2025-10-14 Hongpu Zhang , Shu Sun , Hangsong Yan , Jianhua Mo