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Recovering the 3D shape of an object from single or multiple images with deep neural networks has been attracting increasing attention in the past few years. Mainstream works (e.g. 3D-R2N2) use recurrent neural networks (RNNs) to…

Computer Vision and Pattern Recognition · Computer Science 2020-10-06 Haozhe Xie , Hongxun Yao , Shengping Zhang , Shangchen Zhou , Wenxiu Sun

3D object reconstructions of transparent and concave structured objects, with inferred material properties, remains an open research problem for robot navigation in unstructured environments. In this paper, we propose a multimodal single-…

Computer Vision and Pattern Recognition · Computer Science 2021-10-07 Justin Wilson , Ming C. Lin

4D millimeter-wave (MMW) radar, which provides both height information and dense point cloud data over 3D MMW radar, has become increasingly popular in 3D object detection. In recent years, radar-vision fusion models have demonstrated…

Computer Vision and Pattern Recognition · Computer Science 2024-09-24 Haocheng Zhao , Runwei Guan , Taoyu Wu , Ka Lok Man , Limin Yu , Yutao Yue

Spectrum sensing and the generation of 3D Radio Environment Maps (REMs) are essential for enabling spectrum sharing within cognitive radio networks. While Uncrewed Aerial Vehicles (UAVs) offer high-mobility 3D sensing, REM accuracy is…

Signal Processing · Electrical Eng. & Systems 2026-05-26 Mushfiqur Rahman , Sung Joon Maeng , Ismail Guvenc , Chau-Wai Wong , Mihail Sichitiu , Jason A. Abrahamson , Arupjyoti Bhuyan

Automatic reconstruction of 3D models from images using multi-view Structure-from-Motion methods has been one of the most fruitful outcomes of computer vision. These advances combined with the growing popularity of Micro Aerial Vehicles as…

Robotics · Computer Science 2016-11-15 Shreyansh Daftry , Christof Hoppe , Horst Bischof

Current methods for 3D reconstruction and environmental mapping frequently face challenges in achieving high precision, highlighting the need for practical and effective solutions. In response to this issue, our study introduces FlyNeRF, a…

Robotics · Computer Science 2024-04-22 Maria Dronova , Vladislav Cheremnykh , Alexey Kotcov , Aleksey Fedoseev , Dzmitry Tsetserukou

3D human reconstruction from RGB images achieves decent results in good weather conditions but degrades dramatically in rough weather. Complementary, mmWave radars have been employed to reconstruct 3D human joints and meshes in rough…

Computer Vision and Pattern Recognition · Computer Science 2023-09-21 Anjun Chen , Xiangyu Wang , Kun Shi , Shaohao Zhu , Bin Fang , Yingfeng Chen , Jiming Chen , Yuchi Huo , Qi Ye

We present a learning-based approach to reconstruct buildings as 3D polygonal meshes from airborne LiDAR point clouds. What makes 3D building reconstruction from airborne LiDAR hard is the large diversity of building designs and especially…

Computer Vision and Pattern Recognition · Computer Science 2024-07-30 Yujia Liu , Anton Obukhov , Jan Dirk Wegner , Konrad Schindler

This study concentrates on advancing mathematical and computational methodology for radar tomography imaging in which the unknown volumetric velocity distribution of a wave within a bounded domain is to be reconstructed. Our goal is to…

Instrumentation and Methods for Astrophysics · Physics 2018-04-04 Mika Takala , Defne Us , Sampsa Pursiainen

Robust scene representation is essential for autonomous systems to safely operate in challenging low-visibility environments. Radar has a clear advantage over cameras and lidars in these conditions due to its resilience to environmental…

Robotics · Computer Science 2026-03-27 Judith Treffler , Vladimír Kubelka , Henrik Andreasson , Martin Magnusson

We propose an optimization technique for 3-D underwater object modeling from 2-D forward-scan sonar images at known poses. A key contribution, for objects imaged in the proximity of the sea surface, is to resolve the multipath artifacts due…

Computer Vision and Pattern Recognition · Computer Science 2024-10-29 Yuhan Liu , Shahriar Negaharipour

The unique cost, flexibility, speed, and efficiency of modern UAVs make them an attractive choice in many applications in contemporary society. This, however, causes an ever-increasing number of reported malicious or accidental incidents,…

Artificial Intelligence · Computer Science 2024-10-22 Nikos Sakellariou , Antonios Lalas , Konstantinos Votis , Dimitrios Tzovaras

In this paper we propose a novel approach to generate a synthetic aerial dataset for application in UAV monitoring. We propose to accentuate shape-based object representation by applying texture randomization. A diverse dataset with…

Computer Vision and Pattern Recognition · Computer Science 2022-03-09 Antonella Barisic , Frano Petric , Stjepan Bogdan

We propose a method to detect and reconstruct multiple 3D objects from a single RGB image. The key idea is to optimize for detection, alignment and shape jointly over all objects in the RGB image, while focusing on realistic and physically…

Computer Vision and Pattern Recognition · Computer Science 2021-06-23 Francis Engelmann , Konstantinos Rematas , Bastian Leibe , Vittorio Ferrari

Reconstructing 3D distributions from their 2D projections is a ubiquitous problem in various scientific fields, particularly so in observational astronomy. In this work, we present a new approach to solving this problem: a Vienna…

Instrumentation and Methods for Astrophysics · Physics 2020-01-22 B. Hasenberger , J. Alves

In this paper, we propose a novel method for joint recovery of camera pose, object geometry and spatially-varying Bidirectional Reflectance Distribution Function (svBRDF) of 3D scenes that exceed object-scale and hence cannot be captured…

Computer Vision and Pattern Recognition · Computer Science 2023-06-07 Carolin Schmitt , Božidar Antić , Andrei Neculai , Joo Ho Lee , Andreas Geiger

We present a neural-field-based large-scale reconstruction system that fuses lidar and vision data to generate high-quality reconstructions that are geometrically accurate and capture photo-realistic textures. This system adapts the…

Robotics · Computer Science 2025-02-18 Yifu Tao , Yash Bhalgat , Lanke Frank Tarimo Fu , Matias Mattamala , Nived Chebrolu , Maurice Fallon

There is rising interest in differentiable rendering, which allows explicitly modeling geometric priors and constraints in optimization pipelines using first-order methods such as backpropagation. Incorporating such domain knowledge can…

Image and Video Processing · Electrical Eng. & Systems 2023-08-09 Michael Wilmanski , Jonathan Tamir

Sensing the medical scenario can ensure the safety during the surgical operations. So, in this regard, a monitor platform which can obtain the accurate location information of the surgery room is desperately needed. Compared to 2D camera…

Computer Vision and Pattern Recognition · Computer Science 2018-09-06 Ke Wang , Han Song , Jiahui Zhang , Xinran Zhang , Hongen Liao

Multiple-input-multiple-output (MIMO) millimeter-wave (mmWave) sensors for synthetic aperture radar (SAR) and inverse SAR (ISAR) address the fundamental challenges of cost-effectiveness and scalability inherent to near-field imaging. In…

Signal Processing · Electrical Eng. & Systems 2023-05-04 Josiah W. Smith , Muhammet Emin Yanik , Murat Torlak