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We propose a deep learning method for single image super-resolution (SR). Our method directly learns an end-to-end mapping between the low/high-resolution images. The mapping is represented as a deep convolutional neural network (CNN) that…

Computer Vision and Pattern Recognition · Computer Science 2015-08-03 Chao Dong , Chen Change Loy , Kaiming He , Xiaoou Tang

Camera-based 3D semantic scene completion (SSC) plays a crucial role in autonomous driving, enabling voxelized 3D scene understanding for effective scene perception and decision-making. Existing SSC methods have shown efficacy in improving…

Computer Vision and Pattern Recognition · Computer Science 2025-11-14 Zhiwen Yang , Yuxin Peng

In this paper, we develop a deep learning based semantic communication system for speech transmission, named DeepSC-ST. We take the speech recognition and speech synthesis as the transmission tasks of the communication system, respectively.…

Audio and Speech Processing · Electrical Eng. & Systems 2023-04-03 Zhenzi Weng , Zhijin Qin , Xiaoming Tao , Chengkang Pan , Guangyi Liu , Geoffrey Ye Li

Existing multimodal large model-based image compression frameworks often rely on a fragmented integration of semantic retrieval, latent compression, and generative models, resulting in suboptimal performance in both reconstruction fidelity…

Computer Vision and Pattern Recognition · Computer Science 2025-05-14 Anle Ke , Xu Zhang , Tong Chen , Ming Lu , Chao Zhou , Jiawen Gu , Zhan Ma

We consider a semantic communication system for speech signals, named DeepSC-S. Motivated by the breakthroughs in deep learning (DL), we make an effort to recover the transmitted speech signals in the semantic communication systems, which…

Audio and Speech Processing · Electrical Eng. & Systems 2021-09-09 Zhenzi Weng , Zhijin Qin , Geoffrey Ye Li

In this paper, a semantic communication framework is proposed for textual data transmission. In the studied model, a base station (BS) extracts the semantic information from textual data, and transmits it to each user. The semantic…

Information Theory · Computer Science 2022-08-18 Yining Wang , Mingzhe Chen , Tao Luo , Walid Saad , Dusit Niyato , H. Vincent Poor , Shuguang Cui

Nowadays, there is an explosive growth of screen contents due to the wide application of screen sharing, remote cooperation, and online education. To match the limited terminal bandwidth, high-resolution (HR) screen contents may be…

Computer Vision and Pattern Recognition · Computer Science 2021-12-14 Jingyu Yang , Sheng Shen , Huanjing Yue , Kun Li

NeRF-based SLAM has recently achieved promising results in tracking and reconstruction. However, existing methods face challenges in providing sufficient scene representation, capturing structural information, and maintaining global…

Computer Vision and Pattern Recognition · Computer Science 2025-03-28 Ziren Gong , Fabio Tosi , Youmin Zhang , Stefano Mattoccia , Matteo Poggi

We frame the task of predicting a semantic labeling as a sparse reconstruction procedure that applies a target-specific learned transfer function to a generic deep sparse code representation of an image. This strategy partitions training…

Computer Vision and Pattern Recognition · Computer Science 2014-10-17 Michael Maire , Stella X. Yu , Pietro Perona

Intelligent task-oriented semantic communications~(SemComs) have witnessed great progress with the development of deep learning~(DL), where multi-task SemComs that perform multiple tasks simultaneously attach great importance due to its…

Signal Processing · Electrical Eng. & Systems 2025-09-12 Jiangjing Hu , Fengyu Wang , Wenjun Xu , Hui Gao , Ping Zhang

We introduce a new semantic communication mechanism - SemanticRL, whose key idea is to preserve the semantic information instead of strictly securing the bit-level precision. Unlike previous methods that mainly concentrate on the network or…

Machine Learning · Computer Science 2022-04-04 Kun Lu , Rongpeng Li , Xianfu Chen , Zhifeng Zhao , Honggang Zhang

Sparse representation with training-based dictionary has been shown successful on super resolution(SR) but still have some limitations. Based on the idea of making the magnification of function curve without losing its fidelity, we proposed…

Computer Vision and Pattern Recognition · Computer Science 2019-06-12 Junyi Bian , Baojun Lin , Ke Zhang

Recent advancements in neural compression have surpassed traditional codecs in PSNR and MS-SSIM measurements. However, at low bit-rates, these methods can introduce visually displeasing artifacts, such as blurring, color shifting, and…

Image and Video Processing · Electrical Eng. & Systems 2024-10-28 Daxin Li , Yuanchao Bai , Kai Wang , Junjun Jiang , Xianming Liu

Hyperspectral image (HSI) fusion addresses the challenge of reconstructing High-Resolution HSIs (HR-HSIs) from High-Resolution Multispectral images (HR-MSIs) and Low-Resolution HSIs (LR-HSIs), a critical task given the high costs and…

Image and Video Processing · Electrical Eng. & Systems 2025-01-15 Chia-Ming Lee , Yu-Fan Lin , Yu-Hao Ho , Li-Wei Kang , Chih-Chung Hsu

Ubiquitous image transmission in emerging applications brings huge overheads to limited wireless resources. Since that text has the characteristic of conveying a large amount of information with very little data, the transmission of the…

Multimedia · Computer Science 2024-09-26 Xinfeng Wei , Haonan Tong , Nuocheng Yang , Changchuan Yin

Image super-resolution (SR) aims to reconstruct high resolution images with both high perceptual quality and low distortion, but is fundamentally limited by the perception-distortion trade-off. GAN-based SR methods reduce distortion but…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Dan Wang , Haiyan Sun , Shan Du , Z. Jane Wang , Zhaochong An , Serge Belongie , Xinrui Cui

Spectrum resources management of growing demands is a challenging problem and Cognitive Radio (CR) known to be capable of improving the spectrum utilization. Recently, Power Spectral Density (PSD) map is defined to enable the CR to reuse…

Information Theory · Computer Science 2017-03-17 Mohammad Eslami , Seyed Hamid Safavi , Farah Torkamani-Azar , Esfandiar Mehrshahi

Generative Semantic Communication (GSC) is a promising solution for image transmission over narrow-band and high-noise channels. However, existing GSC methods rely on long, indirect transport trajectories from a Gaussian to an image…

Image and Video Processing · Electrical Eng. & Systems 2026-04-21 Dahua Gao , Ruichao Liu , Minxi Yang , Shuai Ma , Youlong Wu , Guangming Shi

A digital twin (DT) leverages a virtual representation of the physical world, along with communication (e.g., 6G), computing (e.g., edge computing), and artificial intelligence (AI) technologies to enable many connected intelligence…

Machine Learning · Computer Science 2023-04-26 Christo Kurisummoottil Thomas , Walid Saad , Yong Xiao

As one of the most promising technologies in industry, the Digital Twin (DT) facilitates real-time monitoring and predictive analysis for real-world systems by precisely reconstructing virtual replicas of physical entities. However, this…

Robotics · Computer Science 2026-01-27 Shutong Chen , Emmanouil Spyrakos-Papastavridis , Yichao Jin , Yansha Deng