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State-of-the-art methods fail to solve visual localization in scenarios where different devices use different sparse feature extraction algorithms to obtain keypoints and their corresponding descriptors. Translating feature descriptors is…

Computer Vision and Pattern Recognition · Computer Science 2025-06-30 Paula Carbó Cubero , Alberto Jaenal Gálvez , André Mateus , José Araújo , Patric Jensfelt

Industry and academia have been working towards the evolution from Centralized massive Multiple-Input Multiple-Output (CmMIMO) to Distributed mMIMO (DmMIMO) architectures. Instead of splitting a coverage area into many cells, each served by…

Information Theory · Computer Science 2023-09-12 Eduardo Noboro Tominaga , Hsuan-Jung Su , Jinfeng Du , Sivarama Venkatesan , Richard Demo Souza , Hirley Alves

In this work, we introduce Neighborhood Feature Pooling (NFP), a novel pooling layer designed to enhance texture-aware representation learning for remote sensing image classification. The proposed NFP layer captures relationships between…

Computer Vision and Pattern Recognition · Computer Science 2026-01-13 Fahimeh Orvati Nia , Amirmohammad Mohammadi , Salim Al Kharsa , Pragati Naikare , Zigfried Hampel-Arias , Joshua Peeples

Image representation is critical for many visual tasks. Instead of representing images discretely with 2D arrays of pixels, a recent study, namely local implicit image function (LIIF), denotes images as a continuous function where pixel…

Image and Video Processing · Electrical Eng. & Systems 2022-08-10 Hongwei Li , Tao Dai , Yiming Li , Xueyi Zou , Shu-Tao Xia

Recently, neural radiance fields (NeRF) have gained significant attention in the field of visual localization. However, existing NeRF-based approaches either lack geometric constraints or require extensive storage for feature matching,…

Computer Vision and Pattern Recognition · Computer Science 2025-03-11 Hongjia Zhai , Boming Zhao , Hai Li , Xiaokun Pan , Yijia He , Zhaopeng Cui , Hujun Bao , Guofeng Zhang

6G networks will need to support higher data rates, high-precision localization, and imaging capabilities. Near-field technologies, enabled by extremely large-scale (XL)-arrays, are expected to be essential physical-layer solutions to meet…

Hyperspectral images enable precise identification of ground objects by capturing their spectral signatures with fine spectral resolution.While high spatial resolution further enhances this capability, increasing spatial resolution through…

Image and Video Processing · Electrical Eng. & Systems 2024-10-25 Ankur Garg , Meenakshi Sarkar , S. Manthira Moorthi , Debajyoti Dhar

In the sixth-generation (6G), the extremely large-scale multiple-input-multiple-output (XL-MIMO) is considered a promising enabling technology. With the further expansion of array element number and frequency bands, near-field effects will…

Information Theory · Computer Science 2024-04-29 Haiyang Miao , Jianhua Zhang , Pan Tang , Lei Tian , Weirang Zuo , Qi Wei , Guangyi Liu

Matrix factorization (MF) discovers latent features from observations, which has shown great promises in the fields of collaborative filtering, data compression, feature extraction, word embedding, etc. While many problem-specific…

Distributed, Parallel, and Cluster Computing · Computer Science 2018-08-14 Wei Tan , Shiyu Chang , Liana Fong , Cheng Li , Zijun Wang , Liangliang Cao

Extremely large-scale antenna array (ELAA) is promising as one of the key ingredients for the sixth generation (6G) of wireless communications. The electromagnetic propagation of spherical wavefronts introduces an additional…

Information Theory · Computer Science 2024-03-20 Xu Shi , Xuehan Wang , Jingbo Tan , Jintao Wang

Extremely large-scale multiple-input multiple-output (XL-MIMO) is expected to be an important technology in future sixth generation (6G) networks. Compared with conventional single-polarized XL-MIMO, where signals are transmitted and…

Information Theory · Computer Science 2025-02-21 Shuhao Zeng , Boya Di , Hongliang Zhang , Zhu Han , H. Vincent Poor

X-ray reflectometry (XRR) provides researchers and manufacturers with a non-destructive way to determine thickness, roughness, and density of thin films deposited on smooth substrates. Due to the nested nature of equations modeling this…

Materials Science · Physics 2015-06-12 Donald Windover , David L. Gil , Yasushi Azuma , Toshiyuki Fujimoto

Although CNNs are believed to be invariant to translations, recent works have shown this is not the case, due to aliasing effects that stem from downsampling layers. The existing architectural solutions to prevent aliasing are partial since…

Computer Vision and Pattern Recognition · Computer Science 2025-10-27 Hagay Michaeli , Tomer Michaeli , Daniel Soudry

We present a method for transferring the artistic features of an arbitrary style image to a 3D scene. Previous methods that perform 3D stylization on point clouds or meshes are sensitive to geometric reconstruction errors for complex…

Computer Vision and Pattern Recognition · Computer Science 2022-06-14 Kai Zhang , Nick Kolkin , Sai Bi , Fujun Luan , Zexiang Xu , Eli Shechtman , Noah Snavely

Beamforming design for extremely large-scale multiple-input multiple-output (XL-MIMO) systems is challenging due to prohibitive computational complexity and complex near-field propagation effects. To address this, this paper introduces a…

Information Theory · Computer Science 2026-04-13 Xiyuan Liu , Qingqing Wu , Rui Wang , Qiaoyan Peng , Jun Wu

This paper explores the potential of near-field beamforming (NFBF) in integrated sensing and communication (ISAC) systems with extremely large-scale arrays (XL-arrays). The large-scale antenna arrays increase the possibility of having…

Signal Processing · Electrical Eng. & Systems 2023-08-15 Kaiqian Qu , Shuaishuai Guo , Nasir Saeed

Sixth generation (6G) cellular communications are expected to support enhanced wireless localization capabilities. The widespread deployment of large arrays and high-frequency bandwidths give rise to new considerations for localization…

Signal Processing · Electrical Eng. & Systems 2022-10-31 Qianyu Yang , Anna Guerra , Francesco Guidi , Nir Shlezinger , Haiyang Zhang , Davide Dardari , Baoyun Wang , Yonina C. Eldar

Image Forgery Localization (IFL) technology aims to detect and locate the forged areas in an image, which is very important in the field of digital forensics. However, existing IFL methods suffer from feature degradation during training…

Computer Vision and Pattern Recognition · Computer Science 2024-12-03 Yakun Niu , Pei Chen , Lei Zhang , Lei Tan , Yingjian Chen

The success of medical image segmentation usually requires a large number of high-quality labels. But since the labeling process is usually affected by the raters' varying skill levels and characteristics, the estimated masks provided by…

Computer Vision and Pattern Recognition · Computer Science 2024-10-22 Ming Li , Wei Shen , Qingli Li , Yan Wang

Near-field propagation in extremely large-scale MIMO (XL-MIMO) enlarges the beam training (BT) search space by introducing an additional range dimension, which makes conventional codebook-based beam sweeping prohibitively expensive under…

Signal Processing · Electrical Eng. & Systems 2026-03-13 Xinyang Li , Songjie Yang , Xiang Ling , Jianhui Song , Yibo Wang , Hua Chen
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