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Semantic segmentation necessitates approaches that learn high-level characteristics while dealing with enormous amounts of data. Convolutional neural networks (CNNs) can learn unique and adaptive features to achieve this aim. However, due…

Computer Vision and Pattern Recognition · Computer Science 2023-07-19 Hasan AlMarzouqi , Lyes Saad Saoud

Even without auxiliary images, single hyperspectral image super-resolution (SHSR) methods can be designed to improve the spatial resolution of hyperspectral images. However, failing to explore coherence thoroughly along bands and…

Image and Video Processing · Electrical Eng. & Systems 2025-06-25 Xufei Wang , Mingjian Zhang , Fei Ge , Jinchen Zhu , Wen Sha , Jifen Ren , Zhimeng Hou , Shouguo Zheng , ling Zheng , Shizhuang Weng

Reference-based Image Super-Resolution (RefSR) aims to restore a low-resolution (LR) image by utilizing the semantic and texture information from an additional reference high-resolution (reference HR) image. Existing diffusion-based RefSR…

Computer Vision and Pattern Recognition · Computer Science 2025-08-15 Zhenning Shi , Zizheng Yan , Yuhang Yu , Clara Xue , Jingyu Zhuang , Qi Zhang , Jinwei Chen , Tao Li , Qingnan Fan

Infrared-visible (IR-VIS) image fusion is vital for perception and security, yet most methods rely on the availability of both modalities during training and inference. When the infrared modality is absent, pixel-space generative…

Computer Vision and Pattern Recognition · Computer Science 2026-04-02 Yafei Zhang , Meng Ma , Huafeng Li , Yu Liu

Intelligent reflecting surface (IRS) is an emerging technology to enhance the spectral and energy efficiency of wireless communications cost-effectively. This letter considers a new multi-IRS aided wireless network where a cascaded…

Information Theory · Computer Science 2021-08-12 Weidong Mei , Rui Zhang

In this paper, we investigate the design of secure transmission frameworks with an intelligent reflecting surface (IRS). Our design aims to minimize the system energy consumption in cases of rank-one and full-rank access point (AP)-IRS…

Information Theory · Computer Science 2019-09-04 Biqian Feng , Yongpeng Wu , Mengfan Zheng

With the rapid advancement of diffusion-based generative models, Stable Diffusion (SD) has emerged as a state-of-the-art framework for high-fidelity im-age synthesis. However, existing SD models suffer from suboptimal feature aggregation,…

Graphics · Computer Science 2025-07-21 Zhen-Qi Chen , Yuan-Fu Yang

Radiance field reconstruction aims to recover high-quality 3D representations from multi-view RGB images. Recent advances, such as 3D Gaussian splatting, enable real-time rendering with high visual fidelity on sufficiently powerful graphics…

Graphics · Computer Science 2026-03-31 Kenji Tojo , Bernd Bickel , Nobuyuki Umetani

The fusion of low-spatial-resolution hyperspectral images (HSIs) with high-spatial-resolution conventional images (e.g., panchromatic or RGB) has played a significant role in recent advancements in HSI super-resolution. However, this fusion…

Computer Vision and Pattern Recognition · Computer Science 2025-05-07 Usman Muhammad , Jorma Laaksonen

Diffusion models have demonstrated exceptional capabilities in image restoration, yet their application to video super-resolution (VSR) faces significant challenges in balancing fidelity with temporal consistency. Our evaluation reveals a…

Computer Vision and Pattern Recognition · Computer Science 2025-03-11 Xiaohui Li , Yihao Liu , Shuo Cao , Ziyan Chen , Shaobin Zhuang , Xiangyu Chen , Yinan He , Yi Wang , Yu Qiao

Tip decomposition is a crucial kernel for mining dense subgraphs in bipartite networks, with applications in spam detection, analysis of affiliation networks etc. It creates a hierarchy of vertex-induced subgraphs with varying densities…

Distributed, Parallel, and Cluster Computing · Computer Science 2020-10-20 Kartik Lakhotia , Rajgopal Kannan , Viktor Prasanna , Cesar A. F. De Rose

An intelligent reflecting surface (IRS) can greatly improve the channel quality over a frequency-flat channel, if it is configured to reflect the incident signal as a beam towards the receiver. However, the fundamental limitations of the…

Information Theory · Computer Science 2021-09-16 Emil Björnson

Removing undesired reflections from images taken through the glass is of great importance in computer vision. It serves as a means to enhance the image quality for aesthetic purposes as well as to preprocess images in machine learning and…

Computer Vision and Pattern Recognition · Computer Science 2019-05-13 Yang Yang , Wenye Ma , Yin Zheng , Jian-Feng Cai , Weiyu Xu

This paper proposes a novel dual-intelligent reflecting surface (IRS) aided interference-limited simultaneous wireless information and power transfer (SWIPT) system with independent power splitting (PS), where each receiving antenna applies…

Signal Processing · Electrical Eng. & Systems 2026-01-01 Chaoying Huang , Wen Chen , Qingqing Wu , Xusheng Zhu , Zhendong Li , Ying Wang , Jinhong Yuan

Neural Radiance Fields (NeRFs) have revolutionized the field of novel view synthesis, demonstrating remarkable performance. However, the modeling and rendering of reflective objects remain challenging problems. Recent methods have shown…

Computer Vision and Pattern Recognition · Computer Science 2023-08-22 Georgios Kouros , Minye Wu , Shubham Shrivastava , Sushruth Nagesh , Punarjay Chakravarty , Tinne Tuytelaars

Multifocus image fusion is an effective way to overcome the limitation of optical lenses. Many existing methods obtain fused results by generating decision maps. However, such methods often assume that the focused areas of the two source…

Computer Vision and Pattern Recognition · Computer Science 2023-09-12 Huafeng Li , Dan Wang , Yuxin Huang , Yafei Zhang , Zhengtao Yu

In real-world applications, such as sharing photos on social media platforms, images are always not only sub-sampled but also heavily compressed thus often containing various artefacts. Simple methods for enhancing the resolution of such…

Image and Video Processing · Electrical Eng. & Systems 2022-11-23 Hongming Luo , Fei Zhou , Guangsen Liao , Guoping Qiu

Prior studies on Intelligent Reflecting Surface (IRS) have mostly assumed perfect channel state information (CSI) available for designing the IRS passive beamforming as well as the continuously adjustable phase shift at each of its…

Information Theory · Computer Science 2020-03-25 Changsheng You , Beixiong Zheng , Rui Zhang

This paper presents DiffFuSR, a modular pipeline for super-resolving all 12 spectral bands of Sentinel-2 Level-2A imagery to a unified ground sampling distance (GSD) of 2.5 meters. The pipeline comprises two stages: (i) a diffusion-based…

Computer Vision and Pattern Recognition · Computer Science 2025-12-01 Muhammad Sarmad , Arnt-Børre Salberg , Michael Kampffmeyer

Reconfigurable intelligent surface (RIS) has been deemed as one of potential components of future wireless communication systems because it can adaptively manipulate the wireless propagation environment with low-cost passive devices.…

Signal Processing · Electrical Eng. & Systems 2024-10-28 Yanan Ma , Ming Li , Yang Liu , Qingqing Wu , Qian Liu