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Indoor coverage is a major challenge for 5G millimeter waves (mmWaves). In this paper, we address this problem through a novel theoretical framework that combines stochastic indoor environment modeling with advanced physical propagation…

Networking and Internet Architecture · Computer Science 2020-02-18 Georges Nassif , Catherine Gloaguen , Philippe Martins

Spatial intelligence, encompassing 3D reconstruction, perception, and reasoning, is fundamental to applications such as robotics, aerial imaging, and extended reality. A key enabler is the real-time, accurate estimation of core 3D…

Computer Vision and Pattern Recognition · Computer Science 2025-07-11 Wenyan Cong , Yiqing Liang , Yancheng Zhang , Ziyi Yang , Yan Wang , Boris Ivanovic , Marco Pavone , Chen Chen , Zhangyang Wang , Zhiwen Fan

Unified 2D and 3D radio map construction supports network planning, wireless digital twins, and unmanned aerial vehicle (UAV) applications. In urban environments, blockage, reflection, and diffraction make accurate construction expensive…

Signal Processing · Electrical Eng. & Systems 2026-04-28 Weiming Huang , Hao Sun , Junting Chen

In this paper, we propose a novel network framework for indoor 3D object detection to handle variable input frame numbers in practical scenarios. Existing methods only consider fixed frames of input data for a single detector, such as…

Computer Vision and Pattern Recognition · Computer Science 2025-07-03 Zhenyu Wu , Xiuwei Xu , Ziwei Wang , Chong Xia , Linqing Zhao , Jiwen Lu , Haibin Yan

This paper proposes a three-dimensional (3D) communication channel model for an indoor environment considering the effect of the Hypersurface. The Hypersurface is a software controlled intelligent metasurface, which can be used to…

Visual traversability estimation is critical for autonomous navigation, but existing VLM-based methods rely on hand-crafted prompts, generalize poorly across embodiments, and output only traversability maps, leaving trajectory generation to…

A physics assisted deep learning framework to perform accurate indoor imaging using phaseless Wi-Fi measurements is proposed. It is able to image objects that are large (compared to wavelength) and have high permittivity values, that…

Signal Processing · Electrical Eng. & Systems 2022-11-23 Samruddhi Deshmukh , Amartansh Dubey , Dingfei Ma , Qifeng Chen , Ross Murch

Radio-frequency (RF) data synthesis predicts the received signal given transmitter and receiver positions, and is essential for wireless applications. Recent 3D Gaussian Splatting (3DGS)-based methods achieve efficient synthesis at any…

Networking and Internet Architecture · Computer Science 2026-05-26 Kang Yang , Mani Srivastava

Radio maps are essential for enhancing wireless communications and localization. However, existing methods for constructing radio maps typically require costly calibration processes to collect location-labeled channel state information…

Machine Learning · Computer Science 2025-10-10 Zheng Xing , Junting Chen

Modelling the propagation of electromagnetic wireless signals is critical for designing modern communication systems. Wireless ray tracing simulators model signal propagation based on the 3D geometry and other scene parameters, but their…

Machine Learning · Computer Science 2024-10-08 Thomas Hehn , Markus Peschl , Tribhuvanesh Orekondy , Arash Behboodi , Johann Brehmer

Next-generation wireless systems aim to enable on-demand connectivity through dynamic spectrum utilization. Motivated by this vision, this paper investigates the propagation characteristics and MIMO performance of the upper mid-band,…

Systems and Control · Electrical Eng. & Systems 2026-01-07 Zhuangzhuang Cui , Rudranil Chattopadhyay , Emiel Vanspranghels , Sofie Pollin

Multi-robot exploration of complex, unknown environments benefits from the collaboration and cooperation offered by inter-robot communication. Accurate radio signal strength prediction enables communication-aware exploration. Models which…

The Global Navigation Satellite Systems (GNSS) like GPS suffer from accuracy degradation and are almost unavailable in indoor environments. Indoor positioning systems (IPS) based on WiFi signals have been gaining popularity. However, owing…

Signal Processing · Electrical Eng. & Systems 2021-10-22 Pranav Sankhe , Saqib Azim , Sachin Goyal , Tanya Choudhary , Kumar Appaiah , Sukumar Srikant

We present a framework for analysing panchromatic and spatially resolved galaxy observations, dubbed SE3D. SE3D simultaneously and self-consistently models a galaxy's spectral energy distribution and its spectral distributions of global…

Astrophysics of Galaxies · Physics 2026-05-19 Steven Ramnichal , Junkai Zhang , Stijn Wuyts , Cheng Li

We present GuidedSceneGen, a text-to-3D generation framework that produces metrically accurate, globally consistent, and semantically interpretable indoor scenes. Unlike prior text-driven methods that often suffer from geometric drift or…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Stefan Ainetter , Thomas Deixelberger , Edoardo A. Dominici , Philipp Drescher , Konstantinos Vardis , Markus Steinberger

The ability to map and estimate the activity of radiological source distributions in unknown three-dimensional environments has applications in the prevention and response to radiological accidents or threats as well as the enforcement and…

We show that a unified and maximally generalized approach to spatial transformation design is possible, one that encompasses all second order waves, rays, and diffusion processes in anisotropic media. Until the final step, it is unnecessary…

Classical Physics · Physics 2018-05-04 Paul Kinsler , Martin W. McCall

Garment sewing patterns are fundamental design elements that bridge the gap between design concepts and practical manufacturing. The generative modeling of sewing patterns is crucial for creating diversified garments. However, existing…

Computer Vision and Pattern Recognition · Computer Science 2025-09-23 Xinyu Li , Qi Yao , Yuanda Wang

Methods for accurate prediction of radio signal quality parameters are crucial for optimization of mobile networks, and a necessity for future autonomous driving solutions. The power-distance relation of current empirical models struggles…

Networking and Internet Architecture · Computer Science 2020-08-19 Jakob Thrane , Benjamin Sliwa , Christian Wietfeld , Henrik Christiansen

Recent advances in dense 3D reconstruction have led to significant progress, yet achieving accurate unified geometric prediction remains a major challenge. Most existing methods are limited to predicting a single geometry quantity from…

Computer Vision and Pattern Recognition · Computer Science 2025-07-23 Xianze Fang , Jingnan Gao , Zhe Wang , Zhuo Chen , Xingyu Ren , Jiangjing Lyu , Qiaomu Ren , Zhonglei Yang , Xiaokang Yang , Yichao Yan , Chengfei Lyu